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Piedmont Natural Gas Company 10-K 2007
Piedmont Natural Gas Company, Inc.
Table of Contents

 
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D. C. 20549
 
     
(Mark One)    
þ
  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    For the fiscal year ended October 31, 2007
Or
o
  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
    For the transition period from          to          
 
Commission file number 1-6196
Piedmont Natural Gas Company, Inc.
 
     
North Carolina   56-0556998
(State or other jurisdiction of
incorporation or organization)
  (I.R.S. Employer
Identification No.)
4720 Piedmont Row Drive,
Charlotte, North Carolina
  28210
(Zip Code)
(Address of principal executive offices)    
 
Registrant’s telephone number, including area code
(704) 364-3120
 
 
     
Title of Each Class
 
Name of Each Exchange on Which Registered
 
Common Stock, no par value   New York Stock Exchange
 
Indicate by check mark if the registrant is a well-known seasoned issuer as defined in Rule 405 of the securities Act.  Yes þ     No o
 
Indicate by check mark if the registrant is not required to file reports pursuant to section 13 or 15 (d) of the Act.  Yes o     No þ
 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.  Yes þ     No o
 
Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K (§ 229.405 of this chapter) is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. o
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer. See definition of “accelerated filer and large accelerated filer” in Rule 12b-2 of the Act. (Check one):
Large accelerated filer þ     Accelerated filer o     Non-accelerated filer o     
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act).  Yes o     No þ
 
State the aggregate market value of the voting common equity held by non-affiliates of the registrant as of April 30, 2007.
 
Common Stock, no par value — $1,931,426,121
 
Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.
 
     
Class
 
Outstanding at December 20, 2007
 
Common Stock, no par value   73,233,664
 
 
Portions of the Proxy Statement for the Annual Meeting of Shareholders on March 6, 2008, are incorporated by reference into Part III.
 


 

 
Piedmont Natural Gas Company, Inc.
 
 
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 Exhibit 3.3
 Exhibit 4.2
 Exhibit 10.22
 Exhibit 10.23
 Exhibit 10.24
 Exhibit 10.25
 Exhibit 12
 Exhibit 21
 Exhibit 23.1
 Exhibit 31.1
 Exhibit 31.2
 Exhibit 32.1
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Item 1.   Business
 
Piedmont Natural Gas Company, Inc. (Piedmont) was incorporated in New York in 1950 and began operations in 1951. In 1994, we merged into a newly formed North Carolina corporation with the same name for the purpose of changing our state of incorporation to North Carolina.
 
Piedmont is an energy services company primarily engaged in the distribution of natural gas to over one million residential, commercial and industrial customers in portions of North Carolina, South Carolina and Tennessee, including 62,000 customers served by municipalities who are our wholesale customers. We are also invested in joint venture, energy-related businesses, including unregulated retail natural gas marketing, interstate natural gas storage and intrastate natural gas transportation.
 
In the Carolinas, our service area is comprised of numerous cities, towns and communities. We serve Anderson, Gaffney, Greenville and Spartanburg in South Carolina and Charlotte, Salisbury, Greensboro, Winston-Salem, High Point, Burlington, Hickory, Indian Trail, Spruce Pine, Reidsville, Fayetteville, New Bern, Wilmington, Tarboro, Elizabeth City, Rockingham and Goldsboro in North Carolina. In North Carolina, we also provide wholesale natural gas service to Greenville, Monroe, Rocky Mount and Wilson. In Tennessee, our service area is the metropolitan area of Nashville, including wholesale natural gas service to Gallatin and Smyrna.
 
We have two reportable business segments, regulated utility and non-utility activities. Operations of our non-utility activities segment are comprised of our equity method investments in joint ventures. Operations of both segments are conducted within the United States of America. For further information on equity method investments and business segments, see Note 11 and Note 12, respectively, to the consolidated financial statements.
 
Operating revenues shown in the consolidated statements of income represent revenues from the regulated utility segment. The cost of purchased gas is a component of operating revenues. Increases or decreases in purchased gas costs from suppliers are passed on to customers through purchased gas adjustment procedures. Therefore, our operating revenues are impacted by changes in gas costs as well as by changes in volumes of gas sold and transported. For the year ended October 31, 2007, 44% of our operating revenues were from residential customers, 24% from commercial customers, 14% from large volume customers, including industrial, power generation and resale customers and 18% from secondary market activities. Operations of the non-utility activities segment are included in the consolidated statements of income in “Income from equity method investments.”
 
Our utility operations are regulated by the North Carolina Utilities Commission (NCUC), the Public Service Commission of South Carolina (PSCSC) and the Tennessee Regulatory Authority (TRA) as to rates, service area, adequacy of service, safety standards, extensions and abandonment of facilities, accounting and depreciation. We are regulated by the NCUC as to the issuance of securities. We are subject to or affected by various federal regulations. These federal regulations include regulations that are particular to the natural gas industry, such as regulations of the Federal Energy Regulatory Commission (FERC) that affect the availability of and the prices paid for the interstate transportation and storage of natural gas, regulations of the Department of Transportation that affect the construction, operation, maintenance, integrity and safety of natural gas distribution and transmission systems, and regulations of the Environmental Protection Agency relating to the use and release into the environment of hazardous wastes. In addition, we are subject to numerous regulations, such as those relating to employment practices, which are generally applicable to companies doing business in the United States of America.
 
We hold non-exclusive franchises for natural gas service in the communities we serve, with expiration dates from 2007 to 2056. The franchises are adequate for the operation of our gas distribution business and do not contain materially burdensome restrictions or conditions. Eleven franchise agreements have expired as of October 31, 2007, and ten will expire during the 2008 fiscal year. We continue to operate in those areas pursuant to the provisions of the expired franchises with no significant impact on our business. The likelihood


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of cessation of service under an expired franchise is remote. We believe that these franchises will be renewed or service continued in the ordinary course of business with no material adverse impact on us, as most government entities do not want to prevent their citizens from having access to gas service or to interfere with our required system maintenance.
 
The natural gas distribution business is seasonal in nature as variations in weather conditions generally result in greater revenues and earnings during the winter months when temperatures are colder. For further information on weather sensitivity and the impact of seasonality on working capital, see “Financial Condition and Liquidity” in Item 7 of this Form 10-K. As is prevalent in the industry, we inject natural gas into storage during the summer months (principally April through October) when customer demand is lower for withdrawal from storage during the winter months (principally November through March) when customer demand is higher. During the year ended October 31, 2007, the amount of natural gas in storage varied from 11.9 million dekatherms (one dekatherm equals 1,000,000 BTUs) to 24.2 million dekatherms, and the aggregate commodity cost of this gas in storage varied from $93.8 million to $185.1 million.
 
During the year ended October 31, 2007, 122.3 million dekatherms of gas were sold to or transported for large volume customers, including industrial, power generation and resale customers, compared with 115.1 million dekatherms in 2006. Deliveries to temperature-sensitive residential and commercial customers, whose consumption varies with the weather, totaled 83.7 million dekatherms in 2007, compared with 83.6 million dekatherms in 2006. Weather in 2007, as measured by degree days, was 12% warmer than normal and in 2006 was 6% warmer than normal.
 
The following is a five-year comparison of operating statistics for the years ended October 31, 2003 through 2007. The information presented is not comparable for all periods due to the acquisitions of North Carolina Natural Gas Corporation (NCNG) and an equity interest in Eastern North Carolina Natural Gas Company (EasternNC) effective September 30, 2003, and the remaining 50% interest of EasternNC effective October 25, 2005.
 
                                         
    2007     2006     2005     2004     2003  
 
Operating Revenues (in thousands):
                                       
Sales and Transportation:
                                       
Residential
  $ 743,637     $ 841,051     $ 686,304     $ 624,487     $ 524,933  
Commercial
    418,426       498,956       421,499       360,355       299,281  
Industrial
    190,204       205,384       215,505       179,302       112,986  
For Power Generation
    29,135       22,963       16,248       18,782       3,071  
For Resale
    13,907       11,342       40,122       38,074       1,948  
                                         
Total
    1,395,309       1,579,696       1,379,678       1,221,000       942,219  
Secondary Market Sales
    308,904       337,278       373,353       301,886       273,369  
Miscellaneous
    7,079       7,654       8,060       6,853       5,234  
                                         
Total
  $ 1,711,292     $ 1,924,628     $ 1,761,091     $ 1,529,739     $ 1,220,822  
                                         
Gas Volumes — Dekatherms (in thousands):
                                       
System Throughput:
                                       
Residential
    50,072       49,119       52,966       54,412       52,603  
Commercial
    33,647       34,476       36,000       35,483       33,648  
Industrial
    79,266       80,490       81,102       83,957       60,054  
For Power Generation
    34,096       26,099       25,591       18,580       2,396  
For Resale
    8,923       8,472       8,779       8,912       623  
                                         
Total
    206,004       198,656       204,438       201,344       149,324  
                                         
Secondary Market Sales
    42,049       40,994       47,057       51,707       45,937  
                                         


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    2007     2006     2005     2004     2003  
 
Number of Retail Customers Billed (12-month average):
                                       
Residential
    835,636       815,579       792,061       771,037       657,965  
Commercial
    93,472       92,692       91,645       90,328       75,924  
Industrial
    2,959       3,008       3,146       3,194       2,626  
For Power Generation
    15       12       16       13       5  
For Resale
    15       19       15       15       4  
                                         
Total
    932,097       911,310       886,883       864,587       736,524  
                                         
                                         
Average Per Residential Customer:
                                       
Gas Used — Dekatherms
    59.92       60.23       66.87       70.57       79.95  
Revenue
  $ 889.90     $ 1,031.23     $ 866.48     $ 809.93     $ 797.81  
Revenue Per Dekatherm
  $ 14.85     $ 17.12     $ 12.96     $ 11.48     $ 9.98  
                                         
Cost of Gas (in thousands):
                                       
Natural Gas Commodity Costs
  $ 1,055,600     $ 1,229,326     $ 1,226,999     $ 943,890     $ 790,118  
Capacity Demand Charges
    116,977       99,333       117,287       125,178       89,514  
Natural Gas Withdrawn From (Injected Into) Storage, net
    (12,815 )     15,709       (35,151 )     (11,116 )     (44,069 )
Regulatory Charges (Credits), net
    27,365       56,781       (47,183 )     (16,582 )     2,379  
                                         
Total
  $ 1,187,127     $ 1,401,149     $ 1,261,952     $ 1,041,370     $ 837,942  
                                         
                                         
Supply Available for Distribution (dekatherms in thousands):
                                       
Natural Gas Purchased
    143,598       140,999       155,614       163,257       143,716  
Transportation Gas
    108,355       101,414       97,959       91,795       52,895  
Natural Gas Withdrawn From (Injected Into) Storage, net
    (1,640 )     (197 )     856       775       (2,490 )
Company Use
    (141 )     (127 )     (133 )     (135 )     (147 )
                                         
Total
    250,172       242,089       254,296       255,692       193,974  
                                         
 
We purchase natural gas under firm contracts to meet our design-day requirements for firm sales customers. These contracts provide that we pay a reservation fee to the supplier to reserve or guarantee the availability of gas supplies for delivery. Under these provisions, absent force majeure conditions, any disruption of supply deliverability is subject to penalty and damage assessment against the supplier. We ensure the delivery of the gas supplies to our distribution system to meet the peak day, seasonal and annual needs of our firm customers by using a variety of firm transportation and storage capacity contracts. The pipeline capacity contracts require the payment of fixed demand charges to reserve firm transportation or storage entitlements. We align the contractual agreements for supply with the firm capacity agreements in terms of volumes, receipt and delivery locations and demand fluctuations. We may supplement these firm contracts with other supply arrangements to serve our interruptible market.

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As of October 31, 2007, we had contracts for the following pipeline firm transportation capacity in dekatherms per day:
 
         
Williams-Transco
    632,200  
El Paso-Tennessee Pipeline
    74,100  
Spectra-Texas Eastern (through arrangements with East Tennessee and Transco)
    37,000  
NiSource-Columbia Gas (through arrangements with Transco and Columbia Gulf)
    42,800  
NiSource-Columbia Gulf
    10,000  
ONEOK-Midwestern (through arrangements with Tennessee, Columbia Gulf, East Tennessee and Transco)
    40,000  
         
Total
    836,100  
         
 
In January 2008, additional transportation capacity of 80,000 dekatherms is anticipated to be added from Midwestern Gas Transmission Company (Midwestern).
 
As of October 31, 2007, we had the following assets or contracts for local peaking facilities and storage for seasonal or peaking capacity in dekatherms of daily deliverability to meet the firm demands of our markets. This deliverability varies from five days to one year:
 
         
Piedmont Liquefied Natural Gas (LNG)
    280,000  
Pine Needle LNG (through arrangements with Transco)
    263,400  
Williams-Transco Storage
    86,100  
NiSource-Columbia Gas Storage
    96,400  
Hardy Storage (through arrangements with Columbia Gas and Transco)
    39,100  
Dominion Storage (through arrangements with Transco)
    13,200  
El Paso-Tennessee Pipeline Storage
    55,900  
         
Total
    834,100  
         
 
As of October 31, 2007, we own or have under contract 34.2 million dekatherms of storage capacity, either in the form of underground storage or LNG. This capability is used to supplement or replace regular pipeline supplies.
 
The source of the gas we distribute is primarily from the Gulf Coast production region, and is purchased primarily from major producers and marketers. The natural gas production, processing and pipeline infrastructure in the Gulf of Mexico has recovered from the hurricane-related supply disruptions of 2005-2006. Natural gas demand is continuing to grow in our service area. As part of our long-term plan to diversify our reliance away from the Gulf Coast region, we are now receiving firm storage service from the Hardy Storage Company, LLC underground facility in West Virginia and firm transportation service from Midwestern that accesses gas supplies from Canada and the Rocky Mountains. For further information on gas supply and regulation, see “Gas Supply and Regulatory Proceedings” in Item 7 of this Form 10-K and Note 3 to the consolidated financial statements.
 
During the year ended October 31, 2007, approximately 5% of our margin (operating revenues less cost of gas) was generated from deliveries to industrial or large commercial customers that have the capability to burn a fuel other than natural gas. The alternative fuels are primarily fuel oil and propane and, to a much lesser extent, coal or wood. Our ability to maintain or increase deliveries of gas to these customers depends on a number of factors, including weather conditions, governmental regulations, the price of gas from suppliers and the price of alternate fuels. Under FERC regulations, certain large-volume customers located in proximity to the interstate pipelines delivering gas to us could attempt to bypass us and take delivery of gas directly from the pipeline or from a third party connecting with the pipeline. During the fiscal year ended October 31, 2007, no bypass activity was experienced. The future level of bypass activity cannot be predicted.
 
The regulated utility competes in the residential and commercial customer markets with other energy products. The most significant competition is between natural gas and electricity for space heating, water


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heating and cooking. There are four major electric companies within our service areas. We continue to attract the majority of the new residential construction market on or near our distribution mains, and we believe that the consumer’s preference for natural gas is influenced by such factors as reliability, comfort, convenience and environmental factors. Natural gas has historically maintained a price advantage over electricity in our service areas; however, with a tighter national supply and demand balance, wholesale natural gas prices and price volatility have increased over recent years. Increases in the price of natural gas can negatively impact our competitive position by decreasing or eliminating the price benefits of natural gas to the consumer.
 
As indicated above, many of our customers can utilize a fuel other than natural gas, and our ability to maintain industrial market share is largely dependent on price. The relationship between supply and demand has the greatest impact on the price of natural gas. With a tighter balance between domestic supply and demand, the cost of natural gas from non-domestic sources may play a greater role in establishing the future market prices of natural gas. The price of oil depends upon a number of factors beyond our control, including the relationship between supply and demand and the policies of foreign and domestic governments. Our revenues could be impacted, either positively or negatively, as a result of alternate fuel decisions made by industrial customers.
 
During the year ended October 31, 2007, our largest customer contributed $13.2 million, or less than 1%, to total operating revenues.
 
Our costs for research and development are not material and are primarily limited to gas industry-sponsored research projects.
 
Compliance with federal, state and local environmental protection laws have had no material effect on construction expenditures, earnings or competitive position. For further information on environmental issues, see “Environmental Matters” in Item 7 of this Form 10-K.
 
As of October 31, 2007, our fiscal year end, we had 1,876 employees, compared with 2,051 as of October 31, 2006.
 
Our reports on Form 10-K, Form 10-Q and Form 8-K, and amendments to these reports, are available at no cost on our website at www.piedmontng.com as soon as reasonably practicable after the report is filed with or furnished to the Securities and Exchange Commission.
 
Item 1A.   Risk Factors
 
Further increases in the wholesale price of natural gas could reduce our earnings.  In recent years, natural gas prices have increased dramatically due to growing demand and limitations on access to North American gas reserves. The cost we pay for natural gas is passed directly through to our customers. Therefore, significant increases in the price of natural gas may cause our existing customers to conserve or motivate them to switch to alternate sources of energy. Significant price increases could also cause new home developers and new customers to select alternative sources of energy. Decreases in the volume of gas we sell could reduce our earnings in the absence of decoupled rate structures, and a decline in new customers could impede growth in our future earnings. In addition, during periods when natural gas prices are significantly higher than historical levels, customers may have trouble paying the resulting higher bills and bad debt expenses may increase and reduce our earnings.
 
A decrease in the availability of adequate upstream, interstate pipeline transportation capacity and natural gas supply could reduce our earnings.  We purchase all of our gas supply from interstate sources that must then be transported to our service territory. Interstate pipeline companies transport the gas to our system under firm service agreements that are designed to meet the requirements of our core markets. A significant disruption to that supply or interstate pipeline capacity due to unforeseen events, including but not limited to, hurricanes, freeze off of natural gas wells, terrorist attacks or other acts of war could reduce our normal interstate supply of gas, which could reduce our earnings. Moreover, if additional natural gas infrastructure, including but not limited to exploration and drilling platforms, processing and gathering systems, off-shore pipelines, interstate pipelines and storage cannot be built at a pace that meets demand, then our growth opportunities would be limited and our earnings negatively impacted.


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Changes in federal laws or regulations could reduce the availability or increase the cost of our interstate pipeline capacity and/or gas supply and thereby reduce our earnings.  The FERC has the power to regulate the interstate transportation of natural gas and the terms and conditions of service. Additionally, Congress has enacted laws that deregulate the price of natural gas sold at the wellhead. Any Congressional legislation or agency regulation that would alter these or other similar statutory and regulatory structures in a way to significantly raise costs that could not be recovered in rates from our customers, that would reduce the availability of supply or capacity, or that would reduce our competitiveness would negatively impact our earnings. Furthermore, Congress has for some time been considering various forms of climate change legislation. There is a possibility that, when and if enacted, the final form of such legislation could impact the company’s growth and put upward pressure on wholesale natural gas prices.
 
Weather conditions may cause our earnings to vary from year to year.  Our earnings can vary from year to year, depending in part on weather conditions. Currently, we have in place regulatory mechanisms that account for this and normalize our margin for weather, providing for an adjustment up or down, to take into account warmer-than-normal or colder-than-normal weather. We estimate that approximately 50% to 60% of our annual gas sales are to temperature-sensitive customers. As a result, mild winter temperatures can cause a decrease in the amount of gas we sell and deliver in any year. If our rates and tariffs were modified to eliminate weather protection, then we would be exposed to significant risk associated with weather and our earnings could vary as a result.
 
Governmental actions at the state level could result in lower earnings.  Our regulated utility segment is regulated by the NCUC, the PSCSC and the TRA. These agencies set the rates that we charge our customers for our services. If a state regulatory commission were to prohibit us from setting rates that timely recover our costs and a reasonable return by significantly lowering our allowed return or negatively altering our cost allocation, rate design, cost trackers (including margin decoupling, weather normalization and cost of gas) or other tariff provisions, then our earnings could be impacted. Additionally, the state agencies foster a competitive regulatory model that, for example, allows us to recover any margin losses associated with negotiated transactions designed to retain large volume customers that could use alternative fuels or that may directly access natural gas supply through their own connection to an interstate pipeline. If there were changes in regulatory philosophies that altered our ability to compete for these customers, then we could lose customers, or incur significant unrecoverable expenses to retain them. Both scenarios would impact our earnings.
 
Operational interruptions to our gas distribution activities caused by accidents, strikes, severe weather such as a major hurricane, pandemic or acts of terrorism could adversely impact earnings.  Inherent in our gas distribution activities are a variety of hazards and operation risks, such as leaks, ruptures and mechanical problems that, if severe enough or led to operational interruptions, could cause substantial financial losses. In addition, these risks could result in loss of human life, significant damage to property, environmental damage, impairment of our operations and substantial loss to us. The location of pipeline and storage facilities near populated areas, including residential areas, commercial business centers, industrial sites and other public gathering places, could increase the level of damages resulting from these risks. Additionally, we have a workforce that is partially represented by the union that exposes us to the risk of a strike. The occurrence of any of these events could adversely affect our financial position, results of operations and cash flows.
 
Increases in our debt ratios could adversely affect our ability to service our debt obligations and our ability to access capital on favorable terms.  An increase in our leverage could adversely affect us by:
 
  •  increasing the cost of future debt financing;
 
  •  making it more difficult for us to satisfy our existing financial obligations;
 
  •  limiting our ability to obtain additional financing, if we need it, for working capital, capital expenditures, debt service requirements or other purposes;
 
  •  increasing our vulnerability to adverse economic and industry conditions;


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  •  requiring us to dedicate a substantial portion of our cash flows from operations to payments on our debt, which would reduce funds available for operations, future business opportunities or other purposes; and
 
  •  limiting our flexibility in planning for, or reacting to, changes in our business and the industry in which we compete.
 
We do not generate sufficient cash flows to meet all our cash needs.  Historically, we have made large capital expenditures in order to finance the expansion and upgrading of our distribution system. We have also purchased and will continue to purchase natural gas to store in inventory. Moreover, we have made several equity method investments and will continue to pursue other similar investments, all of which are and will be important to our revenues and profits. We have funded a portion of our cash needs for these purposes, as well as contributions to our employee pensions and benefit plans, through borrowings under credit arrangements and by offering new securities in the market. Our dependency on external sources of financing creates the risks that our profits could decrease as a result of high capital costs and that we may not be able to secure external sources of cash necessary to fund our operations and new investments on terms acceptable to us.
 
As a result of cross-default provisions in our borrowing arrangements, we may be unable to satisfy all of our outstanding obligations in the event of a default on our part.  The terms of our senior indebtedness, including our credit facility, contain cross-default provisions which provide that we will be in default under such agreements in the event of certain defaults under the indenture or other loan agreements. Accordingly, should an event of default occur under any of those agreements, we face the prospect of being in default under all of our debt agreements, obliged in such instance to satisfy all of our outstanding indebtedness and unable to satisfy all of our outstanding obligations simultaneously. In such an event, we might not be able to obtain alternative financing or, if we are able to obtain such financing, we might not be able to obtain it on terms acceptable to us.
 
We are exposed to credit risk of counterparties with whom we do business.  Adverse economic conditions affecting, or financial difficulties of, counterparties with whom we do business could impair the ability of these counterparties to pay for our services or fulfill their contractual obligations. We depend on these counterparties to remit payments or fulfill their contractual obligations on a timely basis. Any delay or default in payment or failure of the counterparties to meet their contractual obligation could adversely affect our financial position, results of operations or cash flows.
 
Poor investment performance of pension plan holdings and other factors impacting pension plan costs could unfavorably impact our liquidity and results of operations.  Our costs of providing a non-contributory defined benefit pension plan is dependent on a number of factors, such as the rates of return on plan assets, discount rates, the level of interest rates used to measure the required minimum funding levels of the plan, future government regulation and our required or voluntary contributions made to the plan. Without sustained growth in the pension investments over time to increase the value of our plan assets and depending upon the other factors impacting our cost as listed above, we could be required to fund our plan with significant amounts of cash. Such cash funding obligations could have a material impact on our liquidity by reducing cash flows and could negatively affect results of operations.
 
We are subject to numerous environmental laws and regulations that may require significant expenditures or increase operating costs.  We are subject to numerous federal and state environmental laws and regulations affecting many aspects of our present and future operations. These laws and regulations can result in increased capital, operating and other costs. These laws and regulations generally require us to obtain and comply with a wide variety of environmental licenses, permits, inspections and approvals. Compliance with these laws and regulations can require significant expenditures for clean-up costs and damages arising out of contaminated properties. Failure to comply may result in fines, penalties and injunctive measures affecting operating assets.
 
An overall economic downturn could negatively impact our earnings.  A lower level of economic activity in our markets could result in a decline in customer additions and energy consumption which could adversely affect our revenues or restrict our future growth. Additionally, a significant slow down in the housing market in our service area could restrict our future growth and negatively impact our earnings.


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Our inability to attract and retain professional and technical employees could impact our earnings.  Our ability to implement our business strategy and serve our customers is dependent upon the continuing ability to employ talented professionals and attract and retain a technically skilled workforce. Without such a skilled workforce, our ability to provide quality service to our customers and meet our regulatory requirements will be challenged and this could negatively impact our earnings.
 
Item 1B.   Unresolved Staff Comments
 
None.
 
Item 2.   Properties
 
All property included in the consolidated balance sheets in “Utility Plant” is owned by us and used in our regulated utility segment. This property consists of intangible plant, production plant, storage plant, transmission plant, distribution plant and general plant as categorized by natural gas utilities, with 94% of the total invested in utility distribution and transmission plant to serve our customers. We have approximately 3,100 miles of lateral pipelines up to 30 inches in diameter that connect our distribution systems with the transmission systems of our pipeline suppliers. We distribute natural gas through approximately 23,900 miles (three-inch equivalent) of distribution mains. The lateral pipelines and distribution mains are located on or under public streets and highways, or property owned by others, for which we have obtained the necessary legal rights to place and operate our facilities on private property. All of these properties are located in North Carolina, South Carolina and Tennessee. Utility Plant includes “Construction work in progress” which primarily represents distribution, transmission and general plant projects that have not been placed into service pending completion.
 
None of our property is encumbered and all property is in use.
 
We own or lease for varying periods our corporate headquarters building located in Charlotte, North Carolina and district and regional offices in the locations shown below. Lease payments for these various offices totaled $3.9 million for the year ended October 31, 2007.
 
         
North Carolina
 
South Carolina
 
Tennessee
 
Burlington
  Anderson   Nashville
Cary
  Gaffney    
Charlotte
  Greenville    
Elizabeth City
  Spartanburg    
Fayetteville
       
Goldsboro
       
Greensboro
       
Hickory
       
High Point
       
Indian Trail
       
New Bern
       
Reidsville
       
Rockingham
       
Salisbury
       
Spruce Pine
       
Tarboro
       
Wilmington
       
Winston-Salem
       
 
Property included in the consolidated balance sheets in “Other Physical Property” is owned by the parent company and one of its subsidiaries. The property owned by the parent company primarily consists of residential and commercial water heaters leased to natural gas customers. The property owned by the subsidiary is real estate. None of our other subsidiaries directly own property as their operations consist solely of participating in joint ventures as an equity member.


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Item 3.   Legal Proceedings
 
We have only routine litigation in the normal course of business.
 
Item 4.   Submission of Matters to a Vote of Security Holders
 
No matters were submitted to a vote of security holders during our fourth quarter ended October 31, 2007.
 
 
Item 5.   Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities
 
(a) Our common stock (symbol PNY) is traded on the New York Stock Exchange (NYSE). The following table provides information with respect to the high and low sales prices from the NYSE Composite for each quarterly period for the years ended October 31, 2007 and 2006.
 
                 
2007
  High     Low  
 
Quarter ended:
               
January 31
  $ 28.44     $ 25.78  
April 30
    27.50       24.33  
July 31
    27.50       22.00  
October 31
    27.50       23.09  
 
                 
2006
  High     Low  
 
Quarter ended:
               
January 31
  $ 24.94     $ 21.26  
April 30
    25.23       23.21  
July 31
    26.17       23.31  
October 31
    27.27       24.72  
 
(b) As of December 20, 2007, our common stock was owned by 15,660 shareholders of record.
 
(c) The following table provides information with respect to quarterly dividends paid on common stock for the years ended October 31, 2007 and 2006. We expect that comparable cash dividends will continue to be paid in the future.
 
         
    Dividends Paid
 
2007
  Per Share  
 
Quarter ended:
       
January 31
    24¢  
April 30
    25¢  
July 31
    25¢  
October 31
    25¢  
 
         
    Dividends Paid
 
2006
  Per Share  
 
Quarter ended:
       
January 31
    23¢  
April 30
    24¢  
July 31
    24¢  
October 31
    24¢  


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The amount of cash dividends that may be paid on common stock is restricted by provisions contained in certain note agreements under which long-term debt was issued, with those for the senior notes being the most restrictive. We cannot pay or declare any dividends or make any other distribution on any class of stock or make any investments in subsidiaries or permit any subsidiary to do any of the above (all of the foregoing being “restricted payments”) except out of net earnings available for restricted payments. As of October 31, 2007, net earnings available for restricted payments were greater than retained earnings; therefore, our retained earnings were not restricted.
 
The following table provides information with respect to repurchases of our common stock under the Common Stock Open Market Purchase Program during the fourth quarter ended October 31, 2007.
 
                                 
                Total Number of
    Maximum Number
 
    Total Number
          Shares Purchased
    of Shares that May
 
    of Shares
    Average Price
    as Part of Publicly
    Yet be Purchased
 
Period
  Purchased     Paid per Share     Announced Program     Under the Program *  
 
                              4,612,074  
 8/1/07 —  8/31/07
        $             4,612,074  
 9/1/07 —  9/30/07
        $             4,612,074  
10/1/07 —  10/31/07
        $             4,612,074  
Total
        $                
 
 
* The Common Stock Open Market Purchase Program was announced on June 4, 2004, to purchase up to three million shares of common stock for reissuance under our dividend reinvestment, stock purchase and incentive compensation plans. On December 16, 2005, the Board of Directors approved an increase in the number of shares in this program from three million to six million to reflect the two-for-one stock split in 2004. The Board also approved on that date an amendment of the Common Stock Open Market Purchase Program to provide for the purchase of up to four million additional shares of common stock to maintain our debt-to-equity capitalization ratios at target levels. These combined actions increased the total authorized share repurchases from three million to ten million shares. The additional four million shares are referred to as our accelerated share repurchase (ASR) program and have an expiration date of December 31, 2010.


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The following performance graph compares the Company’s cumulative total shareholder return from October 31, 2002, through October 31, 2007 (a five-year period), with the Standard & Poor’s 500 Stock Index, a broad market index (the S&P 500), and with our utility peer group. Large natural gas distribution companies that are representative of our peers in the natural gas distribution industry are included in the LDC Peer Group index.
 
The graph assumes that the value of an investment in Common Stock and in each index was $100 at October 31, 2002, and that all dividends were reinvested. Stock price performances shown on the graph are not indicative of future price performances.
 
 
(PERFORMANCE GRAPH)
 
 
LDC Peer Group — The following companies are included: AGL Resources, Inc., Atmos Energy Corporation, New Jersey Resources, NICOR, Inc., NiSource, Inc., Northwest Natural Gas Company, Piedmont Natural Gas Company, Southwest Gas Corporation, Vectren Corporation and WGL Holdings, Inc.


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Item 6.  Selected Financial Data
 
The following table provides selected financial data for the years ended October 31, 2003 through 2007. The information presented is not comparable for all periods due to the acquisitions of North Carolina Natural Gas Corporation (NCNG) and an equity interest in Eastern North Carolina Natural Gas Company (EasternNC) effective September 30, 2003, and the remaining 50% interest of EasternNC effective October 25, 2005, as discussed in Note 2 to the consolidated financial statements.
 
                                         
    2007     2006     2005     2004     2003  
    In thousands except per share amounts  
 
Operating Revenues
  $ 1,711,292     $ 1,924,628     $ 1,761,091     $ 1,529,739     $ 1,220,822  
Margin (Operating Revenues less Cost of Gas)
  $ 524,165     $ 523,479     $ 499,139     $ 488,369     $ 382,880  
Net Income
  $ 104,387     $ 97,189     $ 101,270     $ 95,188     $ 74,362  
Earnings per Share of Common Stock:
                                       
Basic
  $ 1.41     $ 1.28     $ 1.32     $ 1.28     $ 1.11  
Diluted
  $ 1.40     $ 1.28     $ 1.32     $ 1.27     $ 1.11  
Cash Dividends per Share of Common Stock
  $ 0.990     $ 0.950     $ 0.905     $ 0.8525     $ 0.8225  
Total Assets
  $ 2,820,318     $ 2,733,939     $ 2,602,490     $ 2,392,164     $ 2,339,283  
Long-Term Debt (less current maturities)
  $ 824,887     $ 825,000     $ 625,000     $ 660,000     $ 460,000  
 
Item 7.   Management’s Discussion and Analysis of Financial Condition and Results of Operations
 
 
This report as well as other documents we file with the Securities and Exchange Commission (SEC) may contain forward-looking statements. In addition, our senior management and other authorized spokespersons may make forward-looking statements in print or orally to analysts, investors, the media and others. These statements are based on management’s current expectations and information currently available and are believed to be reasonable and are made in good faith. However, the forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those projected in the statements. Factors that may make the actual results differ from anticipated results include, but are not limited to:
 
  •  Regulatory issues affecting us and those from whom we purchase natural gas transportation and storage service, including those that affect allowed rates of return, terms and conditions of service, rate structures and financings. We monitor our effectiveness in achieving the allowed rates of return and initiate rate proceedings or operating changes as needed.
 
  •  Residential, commercial and industrial growth in our service areas. The ability to grow our customer base and the pace of that growth are impacted by general business and economic conditions, such as interest rates, inflation, fluctuations in the capital markets and the overall strength of the economy in our service areas and the country, and fluctuations in the wholesale prices of natural gas and competitive energy sources.
 
  •  Deregulation, regulatory restructuring and competition in the energy industry. We face competition from electric companies and energy marketing and trading companies, and we expect this competitive environment to continue. We must be able to adapt to the changing environments and the competition.
 
  •  The potential loss of large-volume industrial customers to alternate fuels or to bypass, or the shift by such customers to special competitive contracts or to tariff rates that are at lower per-unit margins than that customer’s existing rate.


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  •  Regulatory issues, customer growth, deregulation, economic and capital market conditions, the cost and availability of natural gas and weather conditions can impact our ability to meet internal performance goals.
 
  •  The capital-intensive nature of our business. In order to maintain growth, we must add to our natural gas distribution system each year. The cost of this construction may be affected by the cost of obtaining governmental approvals, compliance with federal and state pipeline safety and integrity regulations, development project delays and changes in project costs. Weather, general economic conditions and the cost of funds to finance our capital projects can materially alter the cost of a project.
 
  •  Capital market conditions. Our internally generated cash flows are not adequate to finance the full cost of capital expenditures. As a result, we rely on access to both short-term and long-term capital markets as a significant source of liquidity for capital requirements not satisfied by cash flows from operations. Changes in the capital markets could affect access to and cost of capital.
 
  •  Changes in the availability and cost of natural gas. To meet firm customer requirements, we must acquire sufficient gas supplies and pipeline capacity to ensure delivery to our distribution system while also ensuring that our supply and capacity contracts allow us to remain competitive. Natural gas is an unregulated commodity market subject to supply and demand and price volatility. Producers, marketers and pipelines are subject to operating and financial risks associated with exploring, drilling, producing, gathering, marketing and transporting natural gas and have risks that increase our exposure to supply and price fluctuations.
 
  •  Changes in weather conditions. Weather conditions and other natural phenomena can have a material impact on our earnings. Severe weather conditions, including destructive weather patterns such as hurricanes, can impact our suppliers and the pipelines that deliver gas to our distribution system. Weather conditions directly influence the supply of, demand for and the cost of natural gas.
 
  •  Changes in environmental, safety and system integrity regulations and the cost of compliance. We are subject to extensive federal, state and local regulations. Compliance with such regulations may result in increased capital or operating costs.
 
  •  Ability to retain and attract professional and technical employees. To provide quality service to our customers and meet regulatory requirements, we are dependent on our ability to recruit, train, motivate and retain qualified employees.
 
  •  Changes in accounting regulations and practices. We are subject to accounting regulations and practices issued periodically by accounting standard-setting bodies. New accounting standards may be issued that could change the way we record revenues, expenses, assets and liabilities. Future changes in accounting standards could affect our reported earnings or increase our liabilities.
 
  •  Earnings from our equity method investments. We invest in companies that have risks that are inherent in their businesses and we assume such risks as an equity investor.
 
Other factors may be described elsewhere in this report. All of these factors are difficult to predict and many of them are beyond our control. For these reasons, you should not rely on these forward-looking statements when making investment decisions. When used in our documents or oral presentations, the words “expect,” “believe,” “project,” “anticipate,” “intend,” “should,” “could,” “will,” “assume,” “can,” “estimate,” “forecast,” “future,” “indicate,” “outlook,” “plan,” “predict,” “seek,” “target,” “would” and variations of such words and similar expressions are intended to identify forward-looking statements.
 
Forward-looking statements are only as of the date they are made and we do not undertake any obligation to update publicly any forward-looking statement either as a result of new information, future events or otherwise except as required by applicable laws and regulations. Please reference our website at www.piedmontng.com for current information. Our reports on Form 10-K, Form 10-Q and Form 8-K and amendments to these reports are available at no cost on our website as soon as reasonably practicable after the report is filed with or furnished to the SEC.


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Piedmont Natural Gas Company is an energy services company whose principal business is the distribution of natural gas to residential, commercial and industrial customers in portions of North Carolina, South Carolina and Tennessee. We also have equity method investments in joint venture, energy-related businesses. Our operations are comprised of two business segments — the regulated utility segment and the non-utility activities segment.
 
The regulated utility segment is the largest segment of our business with approximately 97% of our consolidated assets. This segment is regulated by three state regulatory commissions that approve rates and tariffs that are designed to give us the opportunity to generate revenues to cover our gas and non-gas costs and to earn a fair rate of return for our shareholders. Factors critical to the success of the regulated utility include a safe, reliable natural gas distribution system and the ability to recover the costs and expenses of the business in rates charged to customers. For the twelve months ended October 31, 2007, 79% of our earnings before taxes came from our regulated utility segment.
 
The non-utility activities segment consists of our equity method investments in joint venture, energy-related businesses that are involved in unregulated retail natural gas marketing, interstate natural gas storage and intrastate natural gas transportation. We invest in joint ventures that are aligned with our business strategies to complement or supplement income from utility operations. We continually monitor performance of these ventures against expectations.
 
Weather conditions directly influence the volumes of natural gas delivered by the regulated utility. Significant portions of our revenues are generated during the winter season. During warm winters or unevenly cold winters, heating customers may significantly reduce their consumption of natural gas. In South Carolina and Tennesee, we have weather normalization adjustment (WNA) mechanisms that are designed to protect a portion of our revenues against warmer-than-normal weather as deviations from normal weather can affect our financial performance and liquidity. The WNA also serves to offset the impact of colder-than-normal weather by reducing the amounts we can charge our customers. In North Carolina, a Customer Utilization Tracker (CUT) provides for the recovery of our approved margin from residential and commercial customers independent of both weather and other consumption patterns. For further information, see Note 3 to the consolidated financial statements.
 
The majority of our natural gas supplies come from the Gulf Coast region. We believe that diversification of our supply portfolio is in our customers’ best interest. In January 2008, we anticipate receiving firm, long-term transportation contract service from Midwestern Gas Transmission Company (Midwestern) that will provide access to Canadian and Rocky Mountain gas supplies and the Chicago hub, primarily to serve our Tennessee markets. In April 2007, we began receiving firm, long-term market area storage service from Hardy Storage Company, LLC (Hardy Storage), a new storage facility in West Virginia.
 
Our strategic focus is on our core business of providing safe, reliable and quality natural gas distribution service to our customers in the growing Southeast market area. Part of our strategic plan is to manage our gas distribution business through control of our operating costs, implementation of new technologies and sound rate and regulatory initiatives. We are working to enhance the value and growth of our utility assets by good management of capital spending, including improvements for current customers and the pursuit of customer growth opportunities in our service areas. We strive for quality customer service by investing in technology, processes and people. We work with our state regulators to maintain fair rates of return and balance the interests of our customers and shareholders.
 
As part of our ongoing effort to improve business processes and customer service, and capture operational and organizational efficiencies, we are in the process of standardizing our customer payment and collection processes and streamlining business operations.
 
We seek to maintain a long-term debt-to-capitalization ratio within a range of 45% to 50%. We also seek to maintain a strong balance sheet and investment-grade credit ratings to support our operating and investment needs.


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The following tables present our financial highlights for the years ended October 31, 2007, 2006 and 2005.
 
Income Statement Components
 
                                         
                      Percent Change  
                      2007 vs.
    2006 vs.
 
    2007     2006     2005     2006     2005  
    In thousands, except per share amounts  
 
Operating Revenues
  $ 1,711,292     $ 1,924,628     $ 1,761,091       (11.1 )%     9.3 %
Cost of Gas
    1,187,127       1,401,149       1,261,952       (15.3 )%     11.0 %
                                         
Margin
    524,165       523,479       499,139       0.1 %     4.9 %
                                         
Operations and Maintenance
    214,442       219,353       206,983       (2.2 )%     6.0 %
Depreciation
    88,654       89,696       85,169       (1.2 )%     5.3 %
General Taxes
    32,407       33,138       29,807       (2.2 )%     11.2 %
Income Taxes
    51,315       50,543       51,880       1.5 %     (2.6 )%
                                         
Total Operating Expenses
    386,818       392,730       373,839       (1.5 )%     5.1 %
                                         
Operating Income
    137,347       130,749       125,300       5.0 %     4.3 %
Other Income (Expense), net of tax
    24,312       18,750       20,828       29.7 %     (10.0 )%
Utility Interest Charges
    57,272       52,310       44,256       9.5 %     18.2 %
                                         
Income before Minority Interest in Income of Consolidated Subsidiary
    104,387       97,189       101,872       7.4 %     (4.6 )%
Less Minority Interest in Income of Consolidated Subsidiary
                602       n/a       n/a  
                                         
Net Income
  $ 104,387     $ 97,189     $ 101,270       7.4 %     (4.0 )%
                                         
Average Shares of Common Stock:
                                       
Basic
    74,250       75,863       76,680       (2.1 )%     (1.1 )%
Diluted
    74,472       76,156       76,992       (2.2 )%     (1.1 )%
Earnings Per Share of Common Stock:
                                       
Basic
  $ 1.41     $ 1.28     $ 1.32       10.2 %     (3.0 )%
Diluted
  $ 1.40     $ 1.28     $ 1.32       9.4 %     (3.0 )%
 
Gas Deliveries, Customers, Weather Statistics and Number of Employees
 
                                         
                      Percent Change  
                      2007 vs.
    2006 vs.
 
Gas Sales and Deliveries in Dekatherms (in thousands)
  2007     2006     2005     2006     2005  
 
Sales Volumes
    105,606       105,728       113,021       (0.1 )%     (6.5 )%
Transportation Volumes
    100,398       92,928       91,417       8.0 %     1.7 %
                                         
Throughput
    206,004       198,656       204,438       3.7 %     (2.8 )%
                                         
Secondary Market Volumes
    42,049       40,994       47,057       2.6 %     (12.9 )%
Customers Billed (at period end)
    922,961       903,368       877,418       2.2 %     3.0 %
Gross Customer Additions
    30,437       34,445       32,751       (11.6 )%     5.2 %
Degree Days
                                       
Actual
    2,977       3,192       3,266       (6.7 )%     (2.3 )%
Normal
    3,388       3,386       3,455       0.1 %     (2.0 )%
Percent colder (warmer) than normal
    (12.1 )%     (5.7 )%     (5.5 )%     n/a       n/a  
Number of Employees (at period end)
    1,876       2,051       2,124       (8.5 )%     (3.4 )%


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Net income increased $7.2 million in 2007 compared with 2006 primarily due to the following changes which increased net income:
 
  •  $7.2 million increase in earnings from equity method investments.
 
  •  $1.1 million increase in non-operating income.
 
  •  $.7 million increase in margin (operating revenues less cost of gas).
 
  •  $4.9 million decrease in operations and maintenance expenses, primarily due to organizational restructuring and process improvement initiatives.
 
  •  $1 million decrease in depreciation.
 
  •  $.7 million decrease in general taxes.
 
These changes were partially offset by the following changes which decreased net income:
 
  •  $5 million increase in utility interest charges.
 
  •  $3.2 million increase in income taxes.
 
Net income decreased $4.1 million in 2006 compared with 2005 primarily due to the following changes which decreased net income:
 
  •  $12.4 million increase in operations and maintenance expenses, primarily due to restructuring charges and customer service initiatives.
 
  •  $8.1 million increase in utility interest charges.
 
  •  $4.5 million increase in depreciation expense.
 
  •  $3.3 million increase in general taxes.
 
  •  $1.7 million decrease from the non-recurring 2005 gain on the sale of corporate office land.
 
  •  $1.6 million increase related to the non-recurring 2005 income tax expense true-up of the effective federal income tax rate following the sale of our propane interests.
 
  •  $1.5 million decrease from the non-recurring 2005 gain on the sale of marketable securities.
 
These changes were partially offset by the following changes which increased net income:
 
  •  $24.3 million increase in margin.
 
  •  $2.3 million increase in earnings from equity method investments.
 
  •  $1.4 million decrease in charitable contributions.
 
  •  $.6 million decrease from the 2005 inclusion of minority interest in income of consolidated subsidiary.
 
Operating revenues in 2007 decreased $213.3 million compared with 2006 primarily due to the following decreases:
 
  •  $212.9 million from lower commodity gas costs passed through to customers.
 
  •  $28.4 million lower revenues from secondary market transactions. Secondary market transactions consist of off-system sales and capacity release arrangements.
 
These decreases were partially offset by the following increases:
 
  •  $26.4 million related to non-commodity components in rates.
 
  •  $5.2 million from increased volumes delivered to transportation customers.
 
  •  $2.3 million from revenues under the WNA in South Carolina and Tennessee.
 
  •  $2.3 million from revenues under the CUT in North Carolina.


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Operating revenues in 2006 increased $163.5 million compared with 2005 primarily due to the following increases:
 
  •  $197.8 million from increased commodity gas costs passed through to customers.
 
  •  $30.4 million from the CUT mechanism put in place as of November 1, 2005, as compared with the North Carolina WNA surcharge in 2005 of $4.7 million. As discussed in “Financial Condition and Liquidity” below, the CUT mechanism was in place throughout 2006, to adjust for variations in residential and commercial use per customer which may be due to conservation and/or weather. The CUT replaced the WNA in North Carolina in 2006.
 
These increases were partially offset by the following decreases:
 
  •  $36.1 million from secondary market activity.
 
  •  $32.6 million from changes in the composition of delivery services, including the impacts of sales revenues versus transportation revenues and sales and transportation services to power generation customers.
 
In general rate proceedings, state regulatory commissions authorize us to recover a margin, which is the applicable billing rate less cost of gas, on each unit of gas delivered. The commissions also authorize us to recover margin losses resulting from negotiating lower rates to industrial customers when necessary to remain competitive. The ability to recover such negotiated margin reductions is subject to continuing regulatory approvals.
 
Cost of gas in 2007 decreased $214 million compared with 2006 primarily due to decreases of $212.9 million from lower commodity gas costs passed through to sales customers.
 
Cost of gas in 2006 increased $139.2 million compared with 2005 primarily due to $197.8 million from increased commodity gas costs, partially offset by the following decreases:
 
  •  $37.6 million from lower secondary market activity.
 
  •  $28.6 million from lower volumes and changes in the composition of delivery services.
 
Our utility margin is defined as natural gas revenues less natural gas commodity purchases and fixed gas costs for upstream capacity. Margin, rather than revenues, is used by management to evaluate utility operations due to the impact of volatile wholesale commodity gas costs, which account for approximately 62% of revenues for the twelve months ended October 31, 2007. The company is authorized to recover from customers all prudently incurred wholesale commodity gas costs.
 
Our utility margin is impacted also by certain regulatory mechanisms as defined elsewhere in this document. These include WNA in Tennessee and South Carolina, the Natural Gas Rate Stabilization in South Carolina, secondary market activity in North Carolina and South Carolina, Tennessee Incentive Plan in Tennessee, CUT in North Carolina, negotiated loss treatment in all three jurisdictions and the collection of uncollectible gas costs in all three jurisdictions. We retain 25% of secondary market margins generated through off-system sales and capacity release activity in all jurisdictions, with 75% credited to customers through the incentive plans.
 
Margin increased $.7 million in 2007 compared with 2006 primarily due to the following increases:
 
  •  $3.9 million from a new power generation customer.
 
  •  $4 million net increase, which includes a net increase of 20,800 residential and commercial customers billed (twelve-month average) and an increase of $5.6 million in base rates in South Carolina, partially offset by a decrease in consumption related to warmer-than-normal weather and conservation.
 
These increases were partially offset by the following decreases:
 
  •  $4.6 million from the regulatory ruling that discontinued the capitalizing and amortizing of storage demand charges.


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  •  $1.9 million from adjustments related to compensating meter indices.
 
  •  $1.2 million from adjustments related to the North Carolina 2006 gas cost accounting review.
 
Margin increased $24.3 million in 2006 compared with 2005 primarily due to growth in the residential and commercial customer base, plus base rate increases of $22.8 million. This net increase was negatively impacted by decreased consumption because of conservation in the residential and commercial classes in South Carolina and Tennessee.
 
Operations and maintenance expenses decreased $4.9 million in 2007 compared with 2006 primarily due to the following decreases:
 
  •  $11 million in payroll primarily related to the management restructuring program in 2006, including impacts on short-term and long-term incentive plan accruals. For further information, see Note 13 to the consolidated financial statements.
 
  •  $.6 million in transportation costs primarily due to fewer vehicles being used as a result of our automated meter reading initiative and continuous business process improvements.
 
These decreases were partially offset by the following increases:
 
  •  $3.2 million in outside services primarily due to increased telephony services and our gas accounting, financial close and record retention projects.
 
  •  $2 million in employee benefits primarily due to pension and postretirement health care costs and health initiative programs and adjustments in group insurance expense.
 
  •  $1.3 million in regulatory expense primarily due to consulting related to gas cost accounting reviews.
 
Operations and maintenance expenses increased $12.4 million in 2006 compared with 2005 primarily due to the following increases:
 
  •  $7.4 million in payroll primarily due to $7.9 million in one-time costs associated with the management restructuring program, increases in long-term incentive plan accruals and costs associated with providing improved customer service, partially offset by decreases in accruals for short-term incentive plans. For further information, see Note 13 to the consolidated financial statements.
 
  •  $6 million in outside services primarily due to our enhanced customer service initiative.
 
  •  $1.8 million in rents and leases due to leasing of corporate office space, partially offset by a reduction of 2006 expenses related to copier leases.
 
  •  $2 million in other corporate expense primarily due to $.5 million of conservation programs approved by the North Carolina Utilities Commission (NCUC) as a part of a rate case settlement and $.75 million in conservation programs under the CUT settlement, and amortization of deferred operations and maintenance expenses of EasternNC. For further information, see Note 3 to the consolidated financial statements.
 
These increases were partially offset by the following decreases:
 
  •  $2.2 million in postretirement health care and life insurance costs.
 
  •  $1.3 million in the provision for uncollectibles.
 
  •  $.8 million from reduced telecommunications costs.
 
  •  $.8 million from reduced risk insurance premium costs.
 
Depreciation expense increased from $85.2 million to $88.7 million over the three-year period 2005 to 2007 primarily due to increases in plant in service, partially offset by plant retirements of short-lived technology assets in 2007.


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General taxes decreased $.7 million in 2007 compared with 2006 primarily due to the following changes:
 
  •  $1.2 million decrease in property taxes related to lower assessments in South Carolina and Tennessee as well as refunds from South Carolina for prior years.
 
  •  $.5 million decrease in payroll taxes.
 
  •  $.9 million increase in gross receipts taxes in Tennessee.
 
General taxes increased $3.3 million in 2006 compared with 2005 primarily due to the following changes:
 
  •  $2.2 million increase in property taxes.
 
  •  $.6 million increase in other gross receipts taxes.
 
  •  $.5 million increase in payroll taxes.
 
Income from equity method investments increased $7.2 million in 2007 compared with 2006 due to the following changes:
 
  •  $5.3 million increase in earnings from SouthStar primarily due to hedging activities and retail price spreads.
 
  •  $2.8 million increase in earnings from Hardy Storage primarily due to storage revenues in 2007 as phase one service to customers began in April 2007.
 
  •  $.6 million decrease in earnings from Pine Needle due to reduced rates approved by the Federal Energy Regulatory Commission (FERC) in Pine Needle’s 2007 rate proceeding.
 
Income from equity method investments increased $2.3 million in 2006 compared with 2005 primarily due to increases in earnings from SouthStar of $.9 million, Pine Needle of $.3 million and Hardy Storage of $1 million.
 
The gain on sale of marketable securities of $1.5 million in 2005 resulted from the sale in February 2005 of common units of Energy Transfer Partners, L.P., which we received in connection with the sale of our propane interests in 2004.
 
Non-operating income is comprised of non-regulated merchandising and service work, subsidiary operations, interest income and other miscellaneous income. Non-operating income in 2005 included a pre-tax gain on the sale of the corporate office land of $1.7 million.
 
Charitable contributions decreased $1.4 million in 2006 compared with 2005 primarily due to the $1 million contribution made to the Piedmont Natural Gas Foundation in 2005.
 
Utility interest charges increased $5 million in 2007 compared with 2006 primarily due to the following changes:
 
  •  $5.5 million increase in interest on long-term debt due to the issuance on June 20, 2006 of $200 million of insured quarterly notes due June 1, 2036, which was partially offset by the retirement on July 30, 2006 of $35 million of senior notes.
 
  •  $.9 million increase in interest expense on regulatory treatment of certain components of deferred income taxes.
 
  •  $.9 million increase in interest expense related to a tax audit settlement.
 
  •  $.4 million decrease in net interest expense on amounts due to/from customers due to higher net receivables in 2007.
 
  •  $2.1 million decrease in interest on short-term debt due to lower balances outstanding in 2007 than in 2006 even though rates were slightly higher in the current period. See further discussion in “Financial Condition and Liquidity” below.


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Utility interest charges increased $8.1 million in 2006 compared with 2005 primarily due to the following changes:
 
  •  $6.5 million increase in interest on short-term debt due to higher balances outstanding at interest rates that were approximately two percentage points higher in 2006 than in 2005. See further discussion in “Financial Condition and Liquidity” below.
 
  •  $3.7 million increase in interest on long-term debt due to the issuance on June 20, 2006 of $200 million of insured quarterly notes due June 1, 2036.
 
  •  $2.1 million decrease in net interest expense on amounts due to/from customers due to higher net receivables in 2006.
 
  •  $.8 million decrease due to an increase in allowance for funds used during construction allocated to debt.
 
  •  $.5 million increase in interest expense on regulatory treatment of certain components of deferred income taxes.
 
 
Piedmont Natural Gas Company, Inc., which began operations in 1951, is an energy services company whose principal business is the distribution of natural gas to over one million residential, commercial and industrial customers in portions of North Carolina, South Carolina and Tennessee, including 62,000 customers served by municipalities who are our wholesale customers. We are invested in joint venture, energy-related businesses, including unregulated retail natural gas marketing, interstate natural gas storage and intrastate natural gas transportation.
 
In 1994, our predecessor, which was incorporated in 1950 under the same name, was merged into a newly formed North Carolina corporation for the purpose of changing our state of incorporation to North Carolina.
 
We continually assess the nature of our business and explore alternatives in our core business of traditional utility regulation. Non-traditional ratemaking initiatives and market-based pricing of products and services provide additional opportunities and challenges for us. We also regularly evaluate opportunities for obtaining natural gas supplies from different production regions and supply sources to maximize our natural gas portfolio flexibility and reliability. For further information, see “Gas Supply and Regulatory Proceedings” below and Note 3 and Note 6 to the consolidated financial statements.
 
We have two reportable business segments, regulated utility and non-utility activities. For further information on business segments, see Note 12 to the consolidated financial statements.
 
Our utility operations are regulated by the NCUC, the Public Service Commission of South Carolina (PSCSC) and the Tennessee Regulatory Authority (TRA) as to rates, service area, adequacy of service, safety standards, extensions and abandonment of facilities, accounting and depreciation. We are also regulated by the NCUC as to the issuance of securities. We are also subject to or affected by various federal regulations. These federal regulations include regulations that are particular to the natural gas industry, such as regulations of the FERC that affect the availability of and the prices paid for the interstate transportation and storage of natural gas, regulations of the Department of Transportation that affect the construction, operation, maintenance, integrity and safety of natural gas distribution and transmission systems, and regulations of the Environmental Protection Agency relating to the use and release into the environment of hazardous wastes. In addition, we are subject to numerous regulations, such as those relating to employment practices, which are generally applicable to companies doing business in the United States of America.
 
In the Carolinas, our service area is comprised of numerous cities, towns and communities. We provide service to Anderson, Gaffney, Greenville and Spartanburg in South Carolina and Charlotte, Salisbury, Greensboro, Winston-Salem, High Point, Burlington, Hickory, Indian Trail, Spruce Pine, Reidsville, Fayetteville, New Bern, Wilmington, Tarboro, Elizabeth City, Rockingham and Goldsboro in North Carolina. In North Carolina, we also provide wholesale natural gas service to Greenville, Monroe, Rocky Mount and


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Wilson. In Tennessee, our service area is the metropolitan area of Nashville, including wholesale natural gas service to Gallatin and Smyrna.
 
Our regulatory commissions approve rates and tariffs that are designed to give us the opportunity to generate revenues to cover our gas and non-gas costs and to earn a fair rate of return for our shareholders. Through October 31, 2005, we had WNA mechanisms in all three states that partially offset the impact of colder-than-normal or warmer-than-normal weather on bills rendered during the months of November through March for residential and commercial customers. The WNA formula calculates the actual weather variance from normal, using 30 years of history, which results in an increase in revenues when weather is warmer than normal and a decrease in revenues when weather is colder than normal. The gas cost portion of our costs is recoverable through purchased gas adjustment (PGA) procedures and is not affected by the WNA. Effective November 1, 2005, the WNA was eliminated in North Carolina and replaced with the CUT that provides for the recovery of our approved margin from residential and commercial customers independent of both weather and other consumption patterns. The CUT tracks our margin earned monthly and results in semi-annual rate adjustments to refund any over-collection or recover any under-collection. For further information on the CUT, see Note 3 to the consolidated financial statements.
 
We invest in joint ventures to complement or supplement income from our regulated utility operations. If an opportunity aligns with our overall business strategies and allows us to leverage the strengths of our markets along with our core abilities, we analyze and evaluate the project with a major factor being a projected rate of return greater than the returns allowed in our utility operations, due to the higher risk of such projects. We participate in the governance of the venture by having a management representative on the governing board of the venture. We monitor actual performance against expectations. Decisions regarding existing joint ventures are based on many factors, including performance results and continued alignment with our business strategies.
 
Financial Condition and Liquidity
 
To meet our capital and liquidity requirements, we rely on certain resources, including cash flows from operating activities, access to capital markets, cash generated from our investments in joint ventures and short-term bank borrowings. We believe that these sources will continue to allow us to meet our needs for working capital, construction expenditures, investments in joint ventures, anticipated debt redemptions and dividend payments.
 
Cash Flows from Operating Activities.  The natural gas business is seasonal in nature. Operating cash flows may fluctuate significantly during the year and from year to year due to working capital changes within our utility and non-utility operations resulting from such factors as weather, natural gas purchases and prices, natural gas storage activity, collections from customers and deferred gas cost recoveries. We rely on operating cash flows and short-term bank borrowings to meet seasonal working capital needs. During our first and second quarters, we generally experience overall positive cash flows from the sale of flowing gas and gas in storage and the collection of amounts billed to customers during the peak heating season (November through March). Cash requirements generally increase during the third and fourth quarters due to increases in natural gas purchases for storage, paying down short-term debt and decreases in receipts from customers.
 
During the peak heating season, our accounts payable increase to reflect amounts due to our natural gas suppliers for commodity and pipeline capacity. The cost of the natural gas can vary significantly from period to period due to volatility in the price of natural gas, which is a function of market fluctuations in the price of natural gas, along with our changing requirements for storage volumes. Differences between natural gas costs that we have paid to suppliers and amounts that we have collected from customers are included in amounts due to/from customers. These natural gas costs can cause cash flows to vary significantly from period to period along with variations in the timing of collections from customers under our gas cost recovery mechanisms.
 
Cash flows from operations are impacted by weather, which affects gas purchases and sales. Warmer weather can lead to lower revenues from fewer volumes of natural gas sold or transported. Colder weather can increase volumes sold to weather-sensitive customers, but may lead to conservation by customers in order to


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reduce their heating bills. Temperatures above normal can lead to reduced operating cash flows, thereby increasing the need for short-term borrowings to meet current cash requirements.
 
Net cash provided by operating activities was $233.5 million in 2007, $103.8 million in 2006 and $183.4 million in 2005. Net cash provided by operating activities reflects a $7.2 million increase in net income for 2007, compared with 2006, as well as changes in working capital as described below:
 
  •  Trade accounts receivable and unbilled utility revenues decreased $15.4 million primarily due to a decrease in unbilled volumes of 2 million dekatherms at year end compared with the prior year end due to the current period being 12% warmer than normal and 7% warmer than the similar prior period.
 
  •  Amounts due to/from customers decreased $13.6 million related to the deferral of gas costs yet to be billed and collected from customers, partially offset by the CUT.
 
  •  Gas in storage decreased $6.7 million primarily due to a regulatory mandated charge of $5.4 million from discontinuing the accounting practice of the capitalization of storage demand charges in 2007 and a decrease in the amount of inventory storage dekatherms in 2007 as compared with 2006.
 
  •  Prepaid gas costs increased $15.3 million primarily due to the addition of the Hardy storage facility. Under asset management agreements, prepaid gas costs during the summer months represent purchases of gas that are not available for sale, and therefore not recorded in inventory, until November 1, for the Columbia and GSS storage facilities, and December 1, for the Hardy Storage storage facility.
 
  •  Trade accounts payable increased $16.9 million this year primarily due to an increase in the cost of the natural gas commodity.
 
Our regulatory commissions approve rates that are designed to give us the opportunity to generate revenues, assuming normal weather, to cover our gas costs and fixed and variable non-gas costs and to earn a fair return for our shareholders. We have had a WNA mechanism in South Carolina and Tennessee that partially offsets the impact of colder-than-normal or warmer-than-normal weather on bills rendered in November through March for residential and commercial customers. The WNA in South Carolina and Tennessee generated charges to customers of $6.4 million in 2007, $4.1 million in 2006 and $3.7 million in 2005. In Tennessee, adjustments are made directly to the customer’s bill. In South Carolina, the adjustments are calculated at the individual customer level and recorded in a deferred account for subsequent collection from or refund to all customers in the class. Effective November 1, 2005, we have a CUT mechanism in North Carolina that provides for any over- or under-collection of approved margin per customer that operates independently of both weather and consumption patterns of residential and commercial customers. The CUT mechanism provided margin of $32.7 million in 2007 and $30.4 million in 2006 as compared to North Carolina WNA that generated charges to customers of $4.7 million in 2005. Our gas costs are recoverable through PGA procedures and are not affected by the WNA or the CUT.
 
The financial condition of the natural gas marketers and pipelines that supply and deliver natural gas to our distribution system can increase our exposure to supply and price fluctuations. We believe our risk exposure to the financial condition of the marketers and pipelines is not significant based on our receipt of the products and services prior to payment and the availability of other marketers of natural gas to meet our firm supply needs if necessary.
 
We have commission approval in North Carolina, South Carolina and Tennessee that places additional credit requirements on the retail natural gas marketers that schedule gas for transportation service on our system.
 
The regulated utility competes with other energy products, such as electricity and propane, in the residential and commercial customer markets. The most significant product competition is with electricity for space heating, water heating and cooking. Numerous factors can influence customer demand for natural gas, such as price volatility, the availability of natural gas in relation to other energy forms, general economic conditions, weather, energy conservation, conservation and energy efficiency programs approved by regulatory bodies and the ability to convert from natural gas to other energy sources. Increases in the price of natural gas can negatively impact our competitive position by decreasing the price benefits of natural gas to the consumer.


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This can impact our cash needs if customer growth slows, resulting in reduced capital expenditures, or if customers conserve, resulting in reduced gas purchases and customer billings.
 
In an effort to keep customer rates competitive by holding down operations and maintenance costs and as part of an ongoing effort aimed at improving business processes, capturing operational and organizational efficiencies and improving customer service, we are continuing the process of standardizing our customer payment and collection processes, streamlining business operations and further consolidating our call centers. We estimate termination benefits to employees of $3.6 million over the next four years which was recorded in 2007 resulting from this business process improvement initiative.
 
In the industrial market, many of our customers are capable of burning a fuel other than natural gas, with fuel oil being the most significant competing energy alternative. Our ability to maintain industrial market share is largely dependent on price. The relationship between supply and demand has the greatest impact on the price of natural gas. With growth in consumption exceeding growth of supply resulting in a tighter balance between domestic supply and demand, the cost of natural gas from non-domestic sources may play a greater role in establishing the future market price of natural gas. The price of oil depends upon a number of factors beyond our control, including the relationship between supply and demand and the policies of foreign and domestic governments and organizations. Our liquidity could be impacted, either positively or negatively, as a result of alternate fuel decisions made by industrial customers.
 
Cash Flows from Investing Activities.  Net cash used in investing activities was $148.2 million in 2007, $167.6 million in 2006 and $159 million in 2005. Net cash used in investing activities was primarily for utility construction expenditures. Gross utility construction expenditures were $135.2 million in 2007, a 34% decrease from the $204.1 million in 2006, primarily due to the automated meter reading project in the prior year. Reimbursements from the bond fund decreased $13.9 million in 2006 from 2005 as construction of gas infrastructure in eastern North Carolina has now been completed. For further information about the bond fund, see Note 3 to the consolidated financial statements.
 
We have a substantial capital expansion program for construction of distribution facilities, purchase of equipment and other general improvements. This program primarily supports the growth in our customer base. Gross utility construction expenditures totaling $168.5 million, primarily to serve customer growth, are budgeted for 2008; however, we are not contractually obligated to expend capital until the work is completed. Due to projected growth in our service areas, significant utility construction expenditures are expected to continue and are a part of our long-range forecasts that are prepared at least annually and typically cover a forecast period of five years.
 
During 2007, we contributed $12.9 million to Hardy Storage Company LLC, a joint venture investee of one of our non-utility subsidiaries, as part of our equity contribution for construction of a FERC regulated interstate storage facility. On November 1, 2007 and December 3, 2007, we contributed an additional $8.8 million to Hardy Storage, which brought our investment in Hardy Storage to $21.7 million. We anticipate contributing up to an additional $8.3 million to Hardy Storage during the fiscal 2008 year. To the extent that more funding is needed, the members will evaluate funding options at that time.
 
During 2007, $2.2 million of supplier refunds was recorded as restricted funds. In September 2007, we petitioned the NCUC for authority to liquidate all certificates of deposit and similar investments that held any supplier refunds due to customers. In October 2007, the NCUC approved the transfer of these restricted funds to the North Carolina all customers deferred account. During 2006, the restrictions on cash totaling $13.2 million were removed in connection with implementing the NCUC order in a general rate proceeding.
 
On May 12, 2005, we sold our corporate office building located in Charlotte, North Carolina for $6.7 million in cash, net of expenses. In accordance with utility plant accounting, we recorded the disposition of the land as a pre-tax gain of $1.7 million in “Other Income (Expense)” in the consolidated statement of income and a loss of $1.8 million on the disposition of the building as a charge to “Accumulated depreciation” in the consolidated balance sheet, based on the sales price allocation from an independent third party. Under the terms of the purchase and sale agreement, we leased back the building from the new owner until our new office space was ready for occupancy. We relocated to our new office space in November 2005 under a


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negotiated ten-year lease with renewal options. The lease payments for the ten-year term range from $3 million to $3.4 million annually.
 
We received $2.4 million in cash in 2005 from the sale of marketable securities which we received in connection with the sale of our propane interests in 2004.
 
Cash Flows from Financing Activities.  Net cash provided by (used in) financing activities was $(86.6) million in 2007, $65.6 million in 2006 and $(22.9) million in 2005. Funds are primarily provided from bank borrowings and the issuance of common stock through dividend reinvestment and employee stock plans, net of purchases under the common stock repurchase program. When required, we sell common stock and long-term debt to cover cash requirements when market and other conditions favor such long-term financing. Funds are primarily used to pay down outstanding short-term borrowings, to repurchase common stock under the common stock repurchase program, and the payment of quarterly dividends on our common stock. As of October 31, 2007, our current assets were $435.3 million and our current liabilities were $424.5 million, primarily due to seasonal requirements as discussed above.
 
As of October 31, 2007, we had committed lines of credit under our senior credit facility effective April 24, 2006 of $350 million with the ability to expand up to $600 million, for which we pay an annual fee of $35,000 plus six basis points for any unused amount up to $350 million. Outstanding short-term borrowings increased from $170 million as of October 31, 2006 to $195.5 million as of October 31, 2007, primarily due to our commitment to fill storage capacity under various contracts. During the twelve months ended October 31, 2007, short-term borrowings ranged from zero to $280.5 million, and when borrowing, interest rates ranged from 4.96% to 6.08% (weighted average of 5.57%).
 
As of October 31, 2007, under our credit facility, we had available letters of credit of $5 million of which $1.5 million was issued and outstanding. The letters of credit are used to guarantee claims from self-insurance under our general liability policies. Effective November 1, 2007, the letters of credit were increased to $1.9 million.
 
As of October 31, 2007, including the issuance of the letters of credit, unused lines of credit available under our senior credit facility totaled $153 million.
 
The level of short-term borrowings can vary significantly due to changes in the wholesale prices of natural gas and to the level of purchases of natural gas supplies to serve customer demand and for storage. Short-term debt may increase when wholesale prices for natural gas increase because we must pay suppliers for the gas before we collect our costs from customers through their monthly bills. Gas prices could continue to increase and fluctuate. With higher wholesale gas prices, we may incur more short-term debt to pay for natural gas supplies and other operating costs since collections from customers could be slower and some customers may not be able to pay their gas bills on a timely basis.
 
During 2007, we issued $15.8 million of common stock through dividend reinvestment and stock purchase plans. On November 7, 2006, through an ASR agreement, we repurchased and retired 1 million shares of common stock for $26.6 million. On January 19, 2007, we settled the transaction and paid an additional $.8 million. On April 2, 2007, through an ASR agreement, we repurchased and retired 850,000 shares of common stock for $22.5 million. On May 23, 2007, we settled the transaction and paid an additional $.4 million. During 2007 under the ASR and the Common Stock Open Market Purchase Program discussed in Note 5 to the consolidated financial statements, we paid $54.2 million for 2 million shares of common stock that are available for reissuance to these plans. During 2006, 2.1 million shares were repurchased for $50.2 million. During 2005, 1.1 million shares were repurchased for $26.1 million.
 
On November 1, 2007, we entered into another ASR agreement. On November 2, 2007, we purchased and retired 1 million shares of our common stock from an investment bank at the closing price of $24.70 per share. Total consideration paid to purchase the shares was $24.8 million, including $92,500 in commission and fees. Through December 14, 2007, the investment bank had purchased 708,000 shares at a cumulative weighted average price of $25.8733 per share.
 
Through the ASR program, we may repurchase and subsequently retire up to approximately four million shares of common stock by no later than December 31, 2010. Through the ASR on November 1, 2007, we


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have repurchased 3,850,000 shares as follows: one million shares repurchased in April 2006, one million shares repurchased in November 2006, 850,000 shares repurchased in March 2007 and one million shares repurchased on November 1, 2007. These shares are in addition to shares that are repurchased on a normal basis through the open market program.
 
We increased our common stock dividend on an annualized basis by $.04 per share in 2007, $.05 per share in 2006 and $.06 per share in 2005. Dividends of $73.6 million, $72.1 million and $69.4 million for 2007, 2006 and 2005, respectively, were paid on common stock. The amount of cash dividends that may be paid on common stock is restricted by provisions contained in certain note agreements under which long-term debt was issued; however, as of October 31, 2007, our retained earnings were not restricted. For further information, see Note 4 to the consolidated financial statements.
 
We have a shelf registration statement that can be used for either debt or equity filed with the SEC. The remaining balance of unused long-term financing available under this shelf registration statement as of October 31, 2007 is $109.4 million. Under this shelf registration, we sold $200 million of long-term debt on June 20, 2006 that was used to pay off $188 million of short-term debt on June 20 and to pay off a portion of the $35 million sinking fund on the 9.44% Senior Notes due July 30, 2006.
 
Our long-term targeted capitalization ratio is 45% to 50% in long-term debt and 50% to 55% in common equity. Accomplishing this capital structure objective and maintaining sufficient cash flow are necessary to maintain attractive credit ratings. As of October 31, 2007, our capitalization consisted of 48% in long-term debt and 52% in common equity.
 
The components of our total debt outstanding to our total capitalization as of October 31, 2007 and 2006 are summarized in the table below.
 
                                 
    October 31     October 31  
    2007     Percentage     2006     Percentage  
          In thousands        
 
Short-term debt
  $ 195,500       10 %   $ 170,000       9 %
Long-term debt
    824,887       44 %     825,000       44 %
                                 
Total debt
    1,020,387       54 %     995,000       53 %
Common stockholders’ equity
    878,374       46 %     882,925       47 %
                                 
Total capitalization (including short-term debt)
  $ 1,898,761       100 %   $ 1,877,925       100 %
                                 
 
As of October 31, 2007, all of our long-term debt was unsecured. Our long-term debt is rated “A” by Standard & Poor’s Ratings Services and “A3” by Moody’s Investors. Currently, with respect to our long-term debt, the credit agencies maintain their stable outlook. There is no guarantee that a rating will remain in effect for any given period of time or that a rating will not be lowered or withdrawn by a rating agency if, in its judgment, circumstances warrant a change.
 
Credit ratings impact our ability to obtain short-term and long-term financing and the cost of such financings. In determining our credit ratings, the rating agencies consider various factors. The more significant quantitative factors include:
 
  •  Ratio of total debt to total capitalization, including balance sheet leverage,
 
  •  Ratio of net cash flows to capital expenditures,
 
  •  Funds from operations interest coverage,
 
  •  Ratio of funds from operations to average total debt,
 
  •  Pension liabilities and funding status, and
 
  •  Pre-tax interest coverage.


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Qualitative factors include, among other things:
 
  •  Stability of regulation in the jurisdictions in which we operate,
 
  •  Consistency of our earnings over time,
 
  •  Risks and controls inherent in the distribution of natural gas,
 
  •  Predictability of cash flows,
 
  •  Quality of business strategy and management,
 
  •  Corporate governance guidelines and practices,
 
  •  Industry position, and
 
  •  Contingencies.
 
We are subject to default provisions related to our long-term debt and short-term borrowings. The default provisions of our senior notes are:
 
  •  Failure to make principal, interest or sinking fund payments,
 
  •  Interest coverage of 1.75 times,
 
  •  Total debt cannot exceed 70% of total capitalization,
 
  •  Funded debt of all subsidiaries in the aggregate cannot exceed 15% of total company capitalization,
 
  •  Failure to make payments on any capitalized lease obligation,
 
  •  Bankruptcy, liquidation or insolvency, and
 
  •  Final judgment against us in excess of $1 million that after 60 days is not discharged, satisfied or stayed pending appeal.
 
The default provisions of our medium-term notes are:
 
  •  Failure to make principal, interest or sinking fund payments,
 
  •  Failure after the receipt of a 90-day notice to observe or perform for any covenant or agreement in the notes or in the indenture under which the notes were issued, and
 
  •  Bankruptcy, liquidation or insolvency.
 
There are cross-default provisions in all of our debt agreements, and thus event of default under one agreement may result in total outstanding issues of debt becoming due. As of October 31, 2007, we are in compliance with all default provisions.


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As of October 31, 2007, our estimated future contractual obligations were as follows.
 
                                         
    Payments Due by Period  
    Less than
    1-3
    4-5
    After
       
    1 Year     Years     Years     5 Years     Total  
    In thousands  
 
Long-term debt(1)
  $     $ 150,000     $     $ 674,887     $ 824,887  
Interest on long-term debt(1)
    55,648       159,134       89,657       664,390       968,829  
Pipeline and storage capacity(2)
    162,032       485,581       249,809       375,617       1,273,039  
Gas supply(3)
    25,405       724                   26,129  
Telecommunications and information technology(4)
    18,641       59,114       20,818             98,573  
Qualified and nonqualified pension plan funding(5)
    11,553       34,511       11,473             57,537  
Postretirement benefits plan funding(5)
    2,172       5,400       1,700             9,272  
Operating leases(6)
    5,076       11,781       7,125       7,565       31,547  
Other purchase obligations(7)
    32,446                         32,446  
Letter of credit
    1,900       5,700       3,800             11,400  
                                         
Total
  $ 314,873     $ 911,945     $ 384,382     $ 1,722,459     $ 3,333,659  
                                         
 
 
(1) See Note 4 to the consolidated financial statements.
 
(2) 100% recoverable through PGA procedures.
 
(3) Reservation fees that are 100% recoverable through PGA procedures.
 
(4) Consists primarily of maintenance fees for hardware and software applications, usage fees, local and long-distance data costs, frame relay, and cell phone and pager usage fees.
 
(5) Estimated funding beyond five years is not available. See Note 8 to the consolidated financial statements.
 
(6) See Note 7 to the consolidated financial statements.
 
(7) Consists primarily of pipeline products, vehicles, contractors and merchandise.
 
 
We have no off-balance sheet arrangements other than operating leases that are reflected in the table above and discussed in Note 7 to the consolidated financial statements.
 
Piedmont Energy Partners, Inc., a wholly owned subsidiary of Piedmont, has entered into a guaranty in the normal course of business. The guaranty involves some levels of performance and credit risk that are not included on our consolidated balance sheets. We have recorded $1.3 million and $1.8 million as of October 31, 2007 and 2006, respectively. The possibility of having to perform on the guaranty is largely dependent upon the future operations of Hardy Storage, third parties or the occurrence of certain future events. For further information on this guaranty, see Note 11 to the consolidated financial statements.
 
Critical Accounting Policies and Estimates
 
We prepare the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America. We make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the periods reported. Actual results may differ significantly from these estimates and assumptions. We base our estimates on historical experience, where applicable, and other relevant factors that we believe are reasonable under the circumstances. On an ongoing basis, we evaluate estimates and assumptions and make adjustments in subsequent periods to reflect more current information if we determine that modifications in assumptions and estimates are warranted.


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Management considers an accounting estimate to be critical if it requires assumptions to be made that were uncertain at the time the estimate was made and changes in the estimate or a different estimate that could have been used would have had a material impact on our financial condition or results of operations. We consider regulatory accounting, revenue recognition and pension and postretirement benefits to be our critical accounting estimates. Management has discussed the selection and development of the critical accounting policies and estimates presented below with the Audit Committee of the Board of Directors.
 
Regulatory Accounting.  Our regulated utility segment is subject to regulation by certain state and federal authorities. Our accounting policies conform to Statement of Financial Accounting Standards (SFAS) No. 71, “Accounting for the Effects of Certain Types of Regulation” (Statement 71), and are in accordance with accounting requirements and ratemaking practices prescribed by the regulatory authorities. The application of these accounting policies allows us to defer expenses and revenues on the balance sheet as regulatory assets and liabilities when those expenses and revenues will be allowed in the ratemaking process in a period different from the period in which they would have been reflected in the income statement by an unregulated company. We then recognize these deferred regulatory assets and liabilities through the income statement in the period in which the same amounts are reflected in rates. If we, for any reason, cease to meet the criteria for application of regulatory accounting treatment for all or part of our operations, we would eliminate from the balance sheet the regulatory assets and liabilities related to those portions ceasing to meet such criteria and include them in the income statement for the period in which the discontinuance of regulatory accounting treatment occurs. Such an event could have a material effect on our results of operations in the period this action was recorded. Regulatory assets as of October 31, 2007 and 2006, totaled $134 million and $143.5 million, respectively. Regulatory liabilities as of October 31, 2007 and 2006, totaled $374 million and $337 million, respectively. The detail of these regulatory assets and liabilities is presented in Note 1.B to the consolidated financial statements.
 
Revenue Recognition.  Utility sales and transportation revenues are based on rates approved by state regulatory commissions. Base rates charged to customers may not be changed without formal approval by the regulatory commission in that jurisdiction; however, the wholesale cost of gas component of rates may be adjusted periodically under PGA procedures. Through October 31, 2005, a WNA factor, based on the margin or base rate component of the billing rate, was included in rates charged to residential and commercial customers during the winter period of November through March in all jurisdictions except EasternNC. The WNA is designed to offset the impact of warmer-than-normal or colder-than-normal weather on customer billings during the winter season. Effective November 1, 2005, the WNA was eliminated in North Carolina and replaced with the CUT that provides for the recovery of our approved margin from residential and commercial customers independent of both weather and other consumption patterns. The CUT tracks our margin earned monthly and will result in semi-annual rate adjustments to refund any over-collection or recover any under-collection. Without the CUT or WNA, our operating revenues in 2007, 2006 and 2005 would have been lower by $39.1 million, $34.6 million and $8.4 million, respectively.
 
Revenues are recognized monthly on the accrual basis, which includes estimated amounts for gas delivered to customers but not yet billed under the cycle-billing method from the last meter reading date to month end. Meters are read throughout the month based on an approximate 30-day usage cycle; therefore, at any point in time, volumes are delivered to customers that have not been metered and billed. The unbilled revenue estimate reflects factors requiring judgment related to estimated usage by customer class, changes in weather during the period and the impact of the WNA or CUT mechanisms, as applicable. Secondary market, or wholesale, sales revenues are recognized when the physical sales are delivered based on contract or market prices.
 
Pension and Postretirement Benefits.  We have a defined-benefit pension plan for the benefit of eligible full-time employees. We also provide certain postretirement health care and life insurance benefits to eligible full-time employees. Our reported costs of providing these benefits, as described in Note 8 to the consolidated financial statements, are impacted by numerous factors, including the provisions of the plans, changing employee demographics and various actuarial calculations, assumptions and accounting mechanisms. Because of the complexity of these calculations, the long-term nature of these obligations and the importance of the assumptions used, our estimate of these costs is a critical accounting estimate.


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Several statistical and other factors, which attempt to anticipate future events, are used in calculating the expenses and liabilities related to the plans. These factors include assumptions about the discount rate used in determining future benefit obligations, projected health care cost trend rates, expected long-term return on plan assets and rate of future compensation increases, within certain guidelines. In addition, we also use subjective factors such as withdrawal and mortality rates to estimate projected benefit obligations. The actuarial assumptions used may differ materially from actual results due to changing market and economic conditions, higher or lower withdrawal rates or longer or shorter life spans of participants. These differences may result in a significant impact on the amount of pension expense or other postretirement benefit costs recorded in future periods.
 
The discount rate has been separately determined for each plan by projecting the plan’s cash flows and developing a zero-coupon spot rate yield curve using non-arbitrage pricing and Moody’s AA or better-rated non-callable bonds. Based on this approach, the weighted average discount rate used in the measurement of the benefit obligation for the qualified pension plans changed from 5.78% in 2006 to 6.43% in 2007. For the nonqualified pension plans, the weighted average discount rate used in the measurement of the benefit obligation changed from 5.67% in 2006 to 6.06% in 2007. Similarly, based on this approach, the weighted average discount rate for postretirement benefits changed from 5.74% in 2006 to 6.25% in 2007. Based on our review of actual cost trend rates and projected future trends in establishing health care cost trend rates, we changed our health care cost trend rate from 9% in 2006 to 8.5% in 2007, declining gradually to 5% in 2012.
 
In determining our expected long-term rate of return on plan assets, we review past long-term performance, asset allocations and long-term inflation assumptions. We target our asset allocations for qualified pension plan assets and other postretirement benefit assets to be approximately 60% equity securities and 40% fixed income securities. The expected long-term rate of return on plan assets was 8.5% in 2005, 2006 and 2007, and will be changed to 8% in 2008. Based on a fairly stagnant inflation trend, our age-related assumed rate of increase in future compensation levels was 4.05% in 2005 and decreased to 4.01% in 2006 and 3.99% in 2007 due to changes in the demographics of the participants.
 
The following reflects the sensitivity of pension cost to changes in certain actuarial assumptions for our qualified pension plan, assuming that the other components of the calculation are constant.
 
                         
                Impact on
 
    Change in
    Impact on 2007
    Projected
 
Actuarial Assumption
  Assumption     Pension Cost     Benefit Obligation  
    Increase (Decrease)  
    In thousands  
 
Discount rate
    (.25 )%   $ 644     $ 4,872  
Rate of return on plan assets
    (.25 )%     500       N/A  
Rate of increase in compensation
    .25 %     861       2,495  
 
The following reflects the sensitivity of postretirement benefit cost to changes in certain actuarial assumptions, assuming that the other components of the calculation are constant.
 
                         
Actuarial Assumption
  Assumption     Benefit Cost     Benefit Obligation  
    Increase (Decrease)  
    In thousands  
 
Discount rate
    (.25 )%   $ 93     $ 719  
Rate of return on plan assets
    (.25 )%     49       N/A  
Health care cost trend rate
    .25 %     23       318  
 
We utilize a number of accounting mechanisms that reduce the volatility of reported pension costs. Differences between actuarial assumptions and actual plan results are deferred and amortized into cost when the accumulated differences exceed 10% of the greater of the projected benefit obligation or the market-related value of the plan assets. If necessary, the excess is amortized over the average remaining service period of active employees.


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We continue to pursue the diversification of our supply portfolio through pipeline capacity arrangements that access new sources of supply and market-area storage and that diversify supply concentration away from the Gulf Coast region. In January 2008, we anticipate that we will receive firm, long-term transportation service from Midwestern of 120,000 dekatherms per day that will provide access to Canadian and Rocky Mountain gas supplies via the Chicago hub, primarily to serve our Tennessee markets. We are currently using 40,000 dekatherms per day of this capacity under a short-term agreement with the above mentioned contract anticipated to become available in January 2008. As of April 2007, we began receiving firm, long-term market-area storage service from Hardy Storage in West Virginia that will provide 39,100 dekatherms per day of withdrawal service for the winter of 2007-2008. Hardy Storage withdrawal capabilities will increase over three phases. Phase 1 (2007-2008 heating season) began at 57% of capacity, phase 2 (2008-2009 heating season) is planned at 85% of capacity, and phase 3 (2009-2010 heating season) is planned at 100% of capacity. We have a 50% equity interest in this project which is more fully discussed in Note 11 to the consolidated financial statements.
 
Secondary market transactions permit us to market gas supplies and transportation services by contract with wholesale or off-system customers. These sales contribute smaller per-unit wholesale margins to earnings; however, the program allows us to act as a wholesale marketer of natural gas and transportation capacity in order to generate operating margin from sources not restricted by the capacity of our retail distribution system. A sharing mechanism is in effect where 75% of any margin is passed through to customers in all of our jurisdictions. However, secondary market transactions in Tennessee are included in the performance incentive plan discussed in Note 3 to the consolidated financial statements.
 
Regulatory proceedings in South Carolina under the South Carolina Rate Stabilization Act were completed during 2007 that will impact 2008 earnings by decreasing annual margin by $2.5 million based on an 11.2% return on equity effective November 1, 2007. For further information about these regulatory proceedings and other regulatory information, see Note 3 to the consolidated financial statements.
 
In the November 2005 North Carolina general rate case order, the CUT was established as an experimental tariff for a three-year period ending November 1, 2008, subject to review in a future general rate case. In accordance with that requirement, it is our intent to file a general rate case in North Carolina to be effective November 1, 2008.
 
 
For information about our equity method investments, see Note 11 to the consolidated financial statements.
 
 
We have developed an environmental self-assessment plan to assess our facilities and program areas for compliance with federal, state and local environmental regulations and to correct any deficiencies identified. As a member of the North Carolina MGP Initiative Group, we, along with other responsible parties, work directly with the North Carolina Department of Environment and Natural Resources to set priorities for manufactured gas plant (MGP) site remediation. For additional information on environmental matters, see Note 7 to the consolidated financial statements.
 
 
In June 2006, the Financial Accounting Standards Board (FASB) issued Interpretation 48, “Accounting for Uncertainty in Income Taxes” (FIN 48), to clarify the accounting for uncertain tax positions in accordance with SFAS 109, “Accounting for Income Taxes,” and in May 2007 issued Staff Position No. FIN 48-1, “Definition of Settlement in FASB Interpretation No. 48,” (FSP 48-1). FIN 48 defines a minimum recognition threshold that a tax position must meet to be recognized in an enterprise’s financial statements. Additionally, FIN 48 provides guidance on derecognition, measurement, classification, interim period accounting, disclosure


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and transition requirements in accounting for uncertain tax positions. FSP 48-1 clarifies when a tax position is considered effectively settled under FIN 48. FIN 48 is effective the beginning of the first annual period beginning after December 15, 2006, and the guidance under FSP 48-1 should be applied upon the adoption of FIN 48. Accordingly, we will adopt FIN 48 and FSP 48-1 in our fiscal year 2008. We have assessed the impact FIN 48 may have on our consolidated financial statements. The adoption will not have a material impact on our financial position, results of operations or cash flows.
 
In September 2006, the FASB issued SFAS No. 157, “Fair Value Measurements” (Statement 157). Statement 157 provides enhanced guidance for using fair value to measure assets and liabilities and applies whenever other standards require (or permit) the measurement of assets or liabilities at fair value, but does not expand the use of fair value measurement to any new circumstances. Statement 157 establishes a fair value hierarchy that prioritizes the information used to develop those assumptions. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data, for example, the reporting entity’s own data. Under Statement 157, fair value measurements would be separately disclosed by level within the fair value hierarchy. On November 14, 2007, the FASB delayed the implementation of Statement 157 for one year only for other nonfinancial assets and liabilities. Statement 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007, and interim periods within those fiscal years, with earlier application encouraged for financial assets and liabilities, as well as for any other assets and liabilities that are carried at fair value on a recurring basis. Accordingly, we will adopt Statement 157 no later than our first fiscal quarter in 2009. We believe the adoption of Statement 157 will not have a material impact on our financial position, results of operations or cash flows.
 
In September 2006, the FASB issued SFAS No. 158, “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans” (Statement 158). Statement 158 requires an employer to fully recognize the obligations associated with single-employer defined benefit pension, retiree healthcare and other postretirement plans in the financial statements by recognizing in its statement of financial position an asset for a plan’s overfunded status or a liability for a plan’s underfunded status rather than only disclosing the funded status in the footnotes to the financial statements. Statement 158 requires employers to recognize changes in the funded status of a defined benefit postretirement plan in the year in which the changes occur. Under Statement 158, gains and losses, prior service costs and credits, and any remaining transition amounts that have not yet been recognized through net periodic benefit cost will be recognized in accumulated other comprehensive income (OCI), net of tax effects, until they are amortized as a component of net periodic cost. Statement 158 also requires that the company measure a plan’s assets and its obligations that determine its funded status as of the end of the employer’s fiscal year. We are already in compliance with this requirement as our pension plans’ measurement dates are already the same as our fiscal year end date.
 
The requirement to recognize the funded status of a benefit plan and the related disclosure requirements applied as of the end of the fiscal year ending after December 15, 2006. Accordingly, we adopted the funded status portion of Statement 158 as of October 31, 2007. Adoption of Statement 158 on our financial position is shown below. The adoption of Statement 158 did not have a material effect on our results of operations or cash flows.
 
In August 2007, we filed petitions with the NCUC, the PSCSC and the TRA requesting the ability to place certain defined benefit postretirement obligations related to the implementation of Statement 158 in a regulatory deferred account instead of OCI. The petitions have been approved in all of the jurisdictions.


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Based on the measurement of the various postretirement plans’ assets and benefit obligations as of October 31, 2007, the effect on our consolidated balance sheet of adopting Statement 158 is as follows.
 
                                         
    Before
    Minimum
                After
 
    Application of
    Pension Liability
    Adoption of
    Rate Deferral
    Application of
 
    Statement 158     Adjustment     Statement 158     Adjustments     Statement 158  
    In thousands  
 
Prepayments
  $ 22,435     $     $ (22,435 )   $     $  
Overfunded postretirement asset
                36,256             36,256  
Regulatory asset for postretirement benefits, noncurrent
                      1,865       1,865  
Accumulated other comprehensive income
    (78 )     24       7,346       (7,292 )      
Other current liabilities
                553             553  
Deferred income taxes (noncurrent)
    (51 )     16       4,754       (4,719 )      
Regulatory liability for postretirement benefits, noncurrent
                      13,876       13,876  
Accumulated provision for postretirement benefits
                17,469             17,469  
Other (deferred credits and other liabilities)
    16,342       (40 )     (16,302 )            
 
In February 2007, the FASB issued SFAS No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities” (Statement 159). Statement 159 provides companies with an option to report selected financial assets and liabilities at fair value. Its objective is to reduce the complexity in accounting for financial instruments and to mitigate the volatility in earnings caused by measuring related assets and liabilities differently. Although Statement 159 does not eliminate disclosure requirements included in other accounting standards, it does establish additional presentation and disclosure requirements designed to facilitate comparisons between companies that choose different measurement attributes for similar types of assets and liabilities. Statement 159 is effective for financial statements issued for fiscal years beginning after November 15, 2007, with early adoption permitted for an entity that has elected also to apply Statement 157 early. Accordingly, we will adopt Statement 159 no later than our first fiscal quarter in 2009. We believe the adoption of Statement 159 will not have a material impact on our financial position, results of operations or cash flows.
 
Item 7A.   Quantitative and Qualitative Disclosures about Market Risk
 
We hold all financial instruments discussed below for purposes other than trading. We are potentially exposed to market risk due to changes in interest rates and the cost of gas. Our exposure to interest rate changes relates primarily to short-term debt. We are exposed to interest rate changes to long-term debt when we are in the market to issue long-term debt. As of October 31, 2007, all of our long-term debt was issued at fixed rates. Exposure to gas cost variations relates to the wholesale supply, demand and price of natural gas.
 
 
We have short-term borrowing arrangements to provide working capital and general corporate funds. The level of borrowings under such arrangements varies from period to period depending upon many factors, including our investments in capital projects. Future short-term interest expense and payments will be impacted by both short-term interest rates and borrowing levels.
 
As of October 31, 2007, we had $195.5 million of short-term debt outstanding under our credit facility at an average interest rate of 4.96%. The carrying amount of our short-term debt approximates fair value. A


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change of 100 basis points in the underlying average interest rate for our short-term debt would have caused a change in interest expense of approximately $1.2 million during 2007.
 
As of October 31, 2007, information about our long-term debt is presented below.
 
                                                                 
                                              Fair Value as
 
    Expected Maturity Date     of October 31,
 
    2008     2009     2010     2011     2012     Thereafter     Total     2007  
                      In millions                    
 
Fixed Rate Long-term Debt
  $     $ 30     $ 60     $ 60     $     $ 675     $ 825     $ 893  
Average Interest Rate
          7.35 %     7.80 %     6.55 %           6.64 %     6.74 %        
 
 
We manage our gas supply costs through a portfolio of short- and long-term procurement contracts with various suppliers. In the normal course of business, we utilize exchange-traded contracts of various duration for the forward purchase of a portion of our natural gas requirements. Due to cost-based rate regulation in our utility operations, our prudently incurred purchased gas costs and the prudently incurred costs of hedging our gas supplies are passed on to customers through PGA procedures.
 
Additional information concerning market risk is set forth in “Financial Condition and Liquidity” in Item 7 of this Form 10-K.
 
Item 8.   Financial Statements and Supplementary Data
 
Consolidated financial statements required by this item are listed in Item 15 (a) 1 in Part IV of this Form 10-K.


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To the Board of Directors and Stockholders of
Piedmont Natural Gas Company, Inc.
 
We have audited the accompanying consolidated balance sheets of Piedmont Natural Gas Company, Inc. and subsidiaries (“Piedmont”) as of October 31, 2007 and 2006, and the related consolidated statements of income, stockholders’ equity, and cash flows for each of the three years in the period ended October 31, 2007. These financial statements are the responsibility of Piedmont’s management. Our responsibility is to express an opinion on the financial statements based on our audits.
 
We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.
 
In our opinion, the accompanying consolidated financial statements present fairly, in all material respects, the financial position of Piedmont Natural Gas Company, Inc. and subsidiaries at October 31, 2007 and 2006, and the results of their operations and their cash flows for each of the three years in the period ended October 31, 2007 in conformity with accounting principles generally accepted in the United States of America.
 
As discussed in Note 8 to the consolidated financial statements, the Company adopted Statement of Financial Accounting Standards No. 158, “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans,” effective October 31, 2007.
 
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company’s internal control over financial reporting as of October 31, 2007, based on the criteria established in Internal Control — Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated December 28, 2007 expressed an unqualified opinion on the Company’s internal control over financial reporting.
 
/s/  Deloitte & Touche LLP
 
Charlotte, North Carolina
December 28, 2007


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Piedmont Natural Gas Company, Inc.
 
Consolidated Balance Sheets
October 31, 2007 and 2006
 
                 
    2007     2006  
    In thousands  
 
ASSETS
Utility Plant:
               
Utility plant in service
  $ 2,833,286     $ 2,714,606  
Less accumulated depreciation
    752,977       733,682  
                 
Utility plant in service, net
    2,080,309       1,980,924  
Construction work in progress
    61,228       94,386  
                 
Total utility plant, net
    2,141,537       2,075,310  
                 
Other Physical Property, at cost (net of accumulated depreciation of $2,197 in 2007 and $2,040 in 2006)
    1,007       1,154  
                 
Current Assets:
               
Cash and cash equivalents
    7,515       8,886  
Restricted cash
    2,211        
Trade accounts receivable (less allowance for doubtful accounts of $544 in 2007 and $1,239 in 2006)
    97,625       90,493  
Income taxes receivable
    15,699       30,849  
Other receivables
    649       160  
Unbilled utility revenues
    24,121       45,938  
Inventories:
               
Gas in storage
    131,439       138,183  
Materials, supplies and merchandise
    5,222       6,221  
Gas purchase options, at fair value
    13,725       3,147  
Amounts due from customers
    76,035       89,635  
Prepayments
    61,007       62,356  
Other
    96       96  
                 
Total current assets
    435,344       475,964  
                 
Investments, Deferred Charges and Other Assets:
               
Equity method investments in non-utility activities
    95,193       75,330  
Goodwill
    48,852       47,383  
Overfunded postretirement asset
    36,256        
Unamortized debt expense
    10,565       11,306  
Regulatory cost of removal asset
    11,939       12,086  
Other
    39,625       35,406  
                 
Total investments, deferred charges and other assets
    242,430       181,511  
                 
Total
  $ 2,820,318     $ 2,733,939  
                 
 
CAPITALIZATION AND LIABILITIES
Capitalization:
               
Stockholders’ equity:
               
Cumulative preferred stock — no par value — 175 shares authorized
  $     $  
Common stock — no par value — shares authorized: 200,000; shares outstanding: 74,208 in 2007 and 75,464 in 2006
    497,570       532,764  
Paid-in capital
    402       56  
Retained earnings
    379,682       348,765  
Accumulated other comprehensive income
    720       1,340  
                 
Total stockholders’ equity
    878,374       882,925  
Long-term debt
    824,887       825,000  
                 
Total capitalization
    1,703,261       1,707,925  
                 
Current Liabilities:
               
Current maturities of long-term debt
           
Notes payable
    195,500       170,000  
Trade accounts payable
    97,156       80,304  
Other accounts payable
    46,411       50,935  
Income taxes accrued
    1,224       1,184  
Accrued interest
    21,811       21,273  
Customers’ deposits
    22,930       22,308  
Deferred income taxes
    16,422       25,085  
General taxes accrued
    18,980       18,522  
Amounts due to customers
    162       123  
Other
    3,915       10,655  
                 
Total current liabilities
    424,511       400,389  
                 
Deferred Credits and Other Liabilities:
               
Deferred income taxes
    267,479       235,411  
Unamortized federal investment tax credits
    2,983       3,417  
Regulatory liability for postretirement benefits
    13,876        
Accumulated provision for postretirement benefits
    17,469        
Cost of removal obligations
    351,738       330,104  
Other
    39,001       56,693  
                 
Total deferred credits and other liabilities
    692,546       625,625  
                 
Commitments and Contingencies (Note 7)
           
                 
Total
  $ 2,820,318     $ 2,733,939  
                 
 
See notes to consolidated financial statements.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Consolidated Statements of Income
For the Years Ended October 31, 2007, 2006 and 2005
 
                         
    2007     2006     2005  
    In thousands except per share amounts  
 
Operating Revenues
  $ 1,711,292     $ 1,924,628     $ 1,761,091  
Cost of Gas
    1,187,127       1,401,149       1,261,952  
                         
Margin
    524,165       523,479       499,139  
                         
Operating Expenses:
                       
Operations and maintenance
    214,442       219,353       206,983  
Depreciation
    88,654       89,696       85,169  
General taxes
    32,407       33,138       29,807  
Income taxes
    51,315       50,543       51,880  
                         
Total operating expenses
    386,818       392,730       373,839  
                         
Operating Income
    137,347       130,749       125,300  
                         
Other Income (Expense):
                       
Income from equity method investments
    37,156       29,917       27,664  
Gain on sale of marketable securities
                1,525  
Non-operating income
    2,218       1,147       3,830  
Charitable contributions
    (587 )     (321 )     (1,717 )
Non-operating expense
    (164 )     (106 )     (28 )
Income taxes
    (14,311 )     (11,887 )     (10,446 )
                         
Total other income (expense), net of tax
    24,312       18,750       20,828  
                         
Utility Interest Charges:
                       
Interest on long-term debt
    55,440       49,915       46,173  
Allowance for borrowed funds used during construction
    (3,799 )     (3,893 )     (3,137 )
Other
    5,631       6,288       1,220  
                         
Total utility interest charges
    57,272       52,310       44,256  
                         
Income before Minority Interest in Income of Consolidated Subsidiary
    104,387       97,189       101,872  
Less Minority Interest in Income of Consolidated Subsidiary
                602  
                         
Net Income
  $ 104,387     $ 97,189     $ 101,270  
                         
Average Shares of Common Stock:
                       
Basic
    74,250       75,863       76,680  
Diluted
    74,472       76,156       76,992  
Earnings Per Share of Common Stock:
                       
Basic
  $ 1.41     $ 1.28     $ 1.32  
Diluted
  $ 1.40     $ 1.28     $ 1.32  
 
See notes to consolidated financial statements.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Consolidated Statements of Cash Flows
For the Years Ended October 31, 2007, 2006 and 2005
 
                         
    2007     2006     2005  
    In thousands  
 
Cash Flows from Operating Activities:
                       
Net income
  $ 104,387     $ 97,189     $ 101,270  
                         
Adjustments to reconcile net income to net cash provided by operating activities:
                       
Depreciation and amortization
    93,355       94,111       91,677  
Amortization of investment tax credits
    (434 )     (534 )     (541 )
Allowance for doubtful accounts
    (695 )     51       102  
Allowance for funds used during construction
          (3,893 )     (3,137 )
Gain on sale of corporate office land
                (1,659 )
Income from equity method investments
    (37,156 )     (29,917 )     (27,664 )
Distributions of earnings from equity method investments
    27,884       28,442       23,649  
Gain on sale of marketable securities
                (1,525 )
Deferred income taxes
    23,854       22,021       18,278  
Stock-based compensation expense
    336              
Changes in assets and liabilities:
                       
Receivables
    14,892       19,395       (43,214 )
Inventories
    7,743       12,791       (24,004 )
Amounts due from customers
    13,599       (37,474 )     (23,329 )
Settlement of legal asset retirement obligations
    (1,660 )            
Overfunded postretirement asset
    (36,256 )            
Other assets
    (2,137 )     7,581       (20,164 )
Accounts payable
    13,069       (94,095 )     94,530  
Amounts due to customers
    39       (17,001 )     (9,255 )
Regulatory liability for postretirement benefits
    13,876              
Accumulated provision for postretirement benefits
    17,469              
Other liabilities
    (18,664 )     5,146       8,362  
                         
Total adjustments
    129,114       6,624       82,106  
                         
Net cash provided by operating activities
    233,501       103,813       183,376  
                         
Cash Flows from Investing Activities:
                       
Utility construction expenditures
    (135,231 )     (204,116 )     (191,407 )
Allowance for funds used during construction
    (3,799 )            
Reimbursements from bond fund
          15,955       29,841  
Contributions to equity method investments
    (12,914 )     (23,696 )     (6,162 )
Distributions of capital from equity method investments
    344       28,968       695  
Proceeds from sale of corporate office building and land
                6,660  
Proceeds from sale of marketable securities
                2,394  
Decrease (increase) in restricted cash
    (2,211 )     13,108       (376 )
Other
    5,576       2,227       (683 )
                         
Net cash used in investing activities
    (148,235 )     (167,554 )     (159,038 )
                         
Cash Flows from Financing Activities:
                       
Increase in notes payable, net of expenses of $405 in 2006
    25,500       11,095       49,000  
Proceeds from issuance of long-term debt, net of expenses
          193,360        
Retirement of long-term debt
    (113 )     (35,000 )      
Expenses related to the issuance of long-term debt
    (5 )            
Issuance of common stock through dividend reinvestment and employee stock plans
    15,782       18,377       23,536  
Repurchases of common stock
    (54,240 )     (50,163 )     (26,119 )
Dividends paid
    (73,561 )     (72,107 )     (69,366 )
                         
Net cash provided by (used in) financing activities
    (86,637 )     65,562       (22,949 )
                         
Net Increase (Decrease) in Cash and Cash Equivalents
    (1,371 )     1,821       1,389  
Cash and Cash Equivalents at Beginning of Year
    8,886       7,065       5,676  
                         
Cash and Cash Equivalents at End of Year
  $ 7,515     $ 8,886     $ 7,065  
                         
Cash Paid During the Year for:
                       
Interest
  $ 63,703     $ 54,669     $ 48,888  
Income taxes
    27,423       56,615       35,888  
                         
Noncash Investing and Financing Activities:
                       
Accrued construction expenditures
  $ 741     $ 2,837     $ 2,036  
Guaranty
    485       1,820        
 
See notes to consolidated financial statements.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Consolidated Statements of Stockholders’ Equity
For the Years Ended October 31, 2007, 2006 and 2005
 
                                         
                      Accumulated
       
                      Other
       
    Common
    Paid-in
    Retained
    Comprehensive
       
    Stock     Capital     Earnings     Income (Loss)     Total  
    In thousands except per share amounts  
 
Balance, October 31, 2004
  $ 563,667     $     $ 291,397     $ (166 )   $ 854,898  
                                         
Comprehensive Income:
                                       
Net income
                    101,270               101,270  
Other comprehensive income:
                                       
Reclassification adjustment of realized gain on marketable securities included in net income, net of tax of ($391)
                            (597 )        
Unrealized gain from hedging activities of equity method investments, net of tax of $287
                            436          
Reclassification adjustment of realized gain from hedging activities of equity method investments included in net income, net of tax of ($1,280)
                            (1,926 )     (2,087 )
                                         
Total comprehensive income
                                    99,183  
Common Stock Issued
    25,332                               25,332  
Common Stock Repurchased
    (26,119 )                             (26,119 )
Tax Benefit from Dividends Paid on ESOP Shares
                    264               264  
Dividends Declared ($.905 per share)
                    (69,366 )             (69,366 )
                                         
Balance, October 31, 2005
    562,880             323,565       (2,253 )     884,192  
                                         
Comprehensive Income:
                                       
Net income
                    97,189               97,189  
Other comprehensive income:
                                       
Minimum pension liability, net of tax of ($51)
                            (78 )        
Unrealized gain from hedging activities of equity method investments, net of tax of $3,013
                            4,644          
Reclassification adjustment of realized gain from hedging activities of equity method investments included in net income, net of tax of ($665)
                            (973 )     3,593  
                                         
Total comprehensive income
                                    100,782  
Common Stock Issued
    20,047                               20,047  
Common Stock Repurchased
    (50,163 )                             (50,163 )
Share-Based Compensation Expense
            56                       56  
Tax Benefit from Dividends Paid on ESOP Shares
                    118               118  
Dividends Declared ($.95 per share)
                    (72,107 )             (72,107 )
                                         
Balance, October 31, 2006
    532,764       56       348,765       1,340       882,925  
                                         
Comprehensive Income:
                                       
Net income
                    104,387               104,387  
Other comprehensive income:
                                       
Minimum pension liability, net of tax of $18
                            24          
Unrealized gain from hedging activities of equity method investments, net of tax of $314
                            578          
Reclassification adjustment of realized gain from hedging activities of equity method investments included in net income, net of tax of ($762)
                            (1,276 )     (674 )
                                         
Total comprehensive income
                                    103,713  
Adjustment to initially apply Statement 158, net of tax
                            54       54  
Common Stock Issued
    19,046                               19,046  
Common Stock Repurchased
    (54,240 )                             (54,240 )
Share-Based Compensation Expense
            336                       336  
Dividends — Incentive Compensation Plan
            10       (10 )              
Tax Benefit from Dividends Paid on ESOP Shares
                    101               101  
Dividends Declared ($.99 per share)
                    (73,561 )             (73,561 )
                                         
Balance, October 31, 2007
  $ 497,570     $ 402     $ 379,682     $ 720     $ 878,374  
                                         
 
The components of accumulated other comprehensive income as of October 31, 2007 and 2006, are as follows.
 
                 
    2007     2006  
    In thousands  
 
Minimum pension liability
  $     $ (78 )
Unrealized gain from hedging activities of equity method investments
    720       1,418  
                 
Accumulated other comprehensive income
  $ 720     $ 1,340  
                 
 
See notes to consolidated financial statements.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements
 
1.   Summary of Significant Accounting Policies
 
A.   Operations and Principles of Consolidation.
 
Piedmont is an energy services company primarily engaged in the distribution of natural gas to residential, commercial and industrial customers in portions of North Carolina, South Carolina and Tennessee. We are invested in joint venture, energy-related businesses, including unregulated retail natural gas marketing, interstate natural gas storage and intrastate natural gas transportation. Our utility operations are regulated by three state regulatory commissions. For further information on regulatory matters, see Note 3 to the consolidated financial statements.
 
The consolidated financial statements reflect the accounts of Piedmont, its wholly owned subsidiaries and, through October 25, 2005, its 50% equity interest in Eastern North Carolina Natural Gas Company (EasternNC). On October 25, 2005, we purchased the remaining 50% interest in EasternNC and merged it into Piedmont. See Note 2 to the consolidated financial statements for further information on acquisitions.
 
Investments in non-utility activities are accounted for under the equity method as we do not have controlling voting interests or otherwise exercise control over the management of such companies. Our ownership interest in each entity is recorded in “Equity method investments in non-utility activities” in the consolidated balance sheets. Earnings or losses from equity method investments are recorded in “Income from equity method investments” in the consolidated statements of income. For further information on equity method investments, see Note 11 to the consolidated financial statements. Revenues and expenses of all other non-utility activities are included in “Non-operating income” in the consolidated statements of income. Inter-company transactions have been eliminated in consolidation where appropriate; however, we have not eliminated inter-company profit on sales to affiliates and costs from affiliates in accordance with Statement of Financial Accounting Standards (SFAS) No. 71, “Accounting For The Effects of Certain Types of Regulation” (Statement 71).
 
B.   Rate-Regulated Basis of Accounting.
 
Our utility operations are subject to regulation with respect to rates, service area, accounting and various other matters by the regulatory commissions in the states in which we operate. Statement 71 provides that rate-regulated public utilities account for and report assets and liabilities consistent with the economic effect of the manner in which independent third-party regulators establish rates. In applying Statement 71, we capitalize certain costs and benefits as regulatory assets and liabilities, respectively, in order to provide for recovery from or refund to utility customers in future periods.
 
Our regulatory assets are recoverable through either rate riders or base rates specifically authorized by a state regulatory commission. Base rates are designed to provide both a recovery of cost and a return on investment during the period the rates are in effect. As such, all of our regulatory assets are subject to review by the respective state regulatory commission during any future rate proceedings. In the event that the provisions of Statement 71 were no longer applicable, we would recognize a write-off of net regulatory assets (regulatory assets less regulatory liabilities) that would result in a charge to net income. Although the natural gas distribution industry is becoming increasingly competitive, our utility operations continue to recover their costs through cost-based rates established by the state regulatory commissions. As a result, we believe that the accounting prescribed under Statement 71 remains appropriate. It is also our opinion that all regulatory assets are recoverable in future rate proceedings, and therefore we have not recorded any regulatory assets that are recoverable but are not yet included in base rates or contemplated in a future rate recovery proceeding.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
Regulatory assets and liabilities in the consolidated balance sheets as of October 31, 2007 and 2006, are as follows.
 
                 
    2007     2006  
    In thousands  
 
Regulatory Assets:
               
Unamortized debt expense
  $ 10,565     $ 11,306  
Amounts due from customers
    76,035       89,635  
Environmental costs*
    4,223       3,812  
Demand-side management costs*
    2,631       3,554  
Deferred operations and maintenance expenses*
    9,286       9,234  
Deferred pipeline integrity expenses*
    4,417       2,121  
Deferred pension and other retirement benefits costs*
    11,146       8,748  
FAS 158 pension and other retirement benefits costs*
    1,865        
Regulatory cost of removal asset
    11,939       12,086  
Other*
    1,866       2,972  
                 
Total
  $ 133,973     $ 143,468  
                 
Regulatory Liabilities:
               
Regulatory cost of removal obligations
  $ 334,079     $ 310,989  
Amounts due to customers
    162       123  
Deferred income taxes
    25,463       25,134  
FAS 158 pension and other retirement benefits costs
    13,876        
Environmental liability due customers*
    386       772  
                 
Total
  $ 373,966     $ 337,018  
                 
 
 
* Regulatory assets are included in “Other” in “Investments, Deferred Charges and Other Assets” and regulatory liabilities are included in “Other” in “Deferred Credits and Other Liabilities” in the consolidated balance sheets.
 
As of October 31, 2007, we had regulatory assets totaling $1.7 million on which we do not earn a return during the recovery period. The original amortization periods for these assets range from 3 to 15 years and, accordingly, $.8 million will be fully amortized by 2008, $.1 million will be fully amortized by 2010 and the remaining $.8 million will be fully amortized by 2018.
 
C.   Utility Plant and Depreciation.
 
Utility plant is stated at original cost, including direct labor and materials, allocable overhead charges and allowance for funds used during construction (AFUDC). For the years ended October 31, 2007, 2006 and 2005, AFUDC totaled $3.8 million, $3.9 million and $3.1 million, respectively. The portion of AFUDC attributable to equity funds is included in “Other Income (Expense)” and the portion attributable to borrowed funds is shown as a reduction of “Utility Interest Charges” in the consolidated statements of income. The costs of property retired are removed from utility plant and charged to accumulated depreciation.
 
We compute depreciation expense using the straight-line method over periods ranging from four to 88 years. The composite weighted-average depreciation rates were 3.23% for 2007, 3.46% for 2006 and 3.46% for 2005.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
Depreciation rates for utility plant are approved by our regulatory commissions. In North Carolina, we are required to conduct a depreciation study every five years and propose new depreciation rates for approval. No such five-year requirement exists in South Carolina or Tennessee; however, we periodically propose revised rates in those states based on depreciation studies. The approved depreciation rates are comprised of two components, one based on average service life and one based on cost of removal. Through depreciation expense, we accrue estimated non-legal costs of removal on any depreciable asset that includes cost of removal in its depreciation rates.
 
D.   Asset Retirement Obligations.
 
SFAS No. 143, “Accounting for Asset Retirement Obligations” (AROs) (Statement 143), addresses the financial accounting and reporting for AROs associated with the retirement of long-lived assets that result from the acquisition, construction, development and operation of the asset. Statement 143 requires the recognition of the fair value of a liability for an ARO in the period in which the liability is incurred if a reasonable estimate of fair value can be made. We have determined that AROs exist for our underground mains and services.
 
In accordance with long-standing regulatory treatment, our depreciation rates are comprised of two components, one based on average service life and one based on cost of removal, as stated above. We collect through rates the estimated costs of removal on certain regulated properties through depreciation expense, with a corresponding credit to accumulated depreciation. These removal costs are non-legal obligations as defined by Statement 143. Because these estimated removal costs meet the requirements of Statement 71, we have accounted for these non-legal asset removal obligations as a regulatory liability. We have reclassified the estimated non-legal asset removal obligations from “Accumulated depreciation” to “Cost of removal obligations” in “Deferred Credits and Other Liabilities” in our consolidated balance sheets. In the rate setting process, the liability for non-legal costs of removal is treated as a reduction to the net rate base upon which the regulated utility has the opportunity to earn its allowed rate of return.
 
In 2006, we applied the Financial Accounting Standards Board Interpretation No. 47, “Accounting for Conditional Asset Retirement Obligations” (FIN 47), that requires recognition of a liability for the fair value of a conditional ARO when incurred if the liability can be reasonably estimated. An ARO will be capitalized concurrently by increasing the carrying amount of the related asset by the same amount of the liability. In periods subsequent to the initial measurement, any changes in the liability resulting from the passage of time (accretion) or due to the revisions of either timing or the amount of the originally estimated cash flows to settle the conditional ARO must be recognized. Any accretion will not be reflected in the income statement as we have received regulatory treatment for deferral as a regulatory asset with netting against a regulatory liability. We have recorded a liability on our distribution and transmission mains and services.
 
The cost of removal obligations recorded in our consolidated balance sheets as of October 31, 2007 and 2006, are shown below.
 
                 
    2007     2006  
    In thousands  
 
Regulatory non-legal asset removal obligations
  $ 334,079     $ 310,989  
Conditional asset retirement obligations
    17,659       19,115  
                 
Total cost of removal obligations
  $ 351,738     $ 330,104  
                 


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
A reconciliation of our FIN 47 conditional ARO for the year ended October 31, 2007, is presented below.
 
         
    In thousands  
 
Beginning of period
  $ 19,115  
Liabilities incurred during the period
    2,564  
Liabilities settled during the period
    (1,660 )
Accretion
    1,102  
Adjustment to estimated cash flows*
    (3,462 )
         
End of period
  $ 17,659  
         
 
 
* Adjustment is primarily due to the change in the credit adjusted risk-free rate from 5.78% as of October 31, 2006 to 6.24% as of October 31, 2007.
 
E.   Trade Accounts Receivable and Allowance for Doubtful Accounts.
 
Trade accounts receivable consist of natural gas sales and transportation services, merchandise sales and service work. We maintain an allowance for doubtful accounts, which we adjust periodically, based on the aging of receivables and our historical and projected charge-off activity. Our estimate of recoverability could differ from actual experience based on customer credit issues, the level of natural gas prices and general economic conditions. Effective November 1, 2005 as approved in an order by the North Carolina Utilities Commission (NCUC), we are allowed the recovery of all uncollected gas costs in North Carolina through the gas cost deferral account. As a result, only the portion of accounts written off relating to the non-gas costs, or margin, is included in base rates and, accordingly, only this portion is included in the provision for uncollectibles expense. Merchandise receivables due beyond one year are included in “Other” in “Investments, Deferred Charges and Other Assets” in the consolidated balance sheets.
 
A reconciliation of changes in the allowance for doubtful accounts for the years ended October 31, 2007, 2006 and 2005, is as follows.
 
                         
    2007     2006     2005  
    In thousands  
 
Balance at beginning of year
  $ 1,239     $ 1,188     $ 1,086  
Additions charged to uncollectibles expense
    4,981       4,706       6,224  
Accounts written off, net of recoveries
    (5,676 )     (4,655 )     (6,122 )
                         
Balance at end of year
  $ 544     $ 1,239     $ 1,188  
                         
 
F.   Goodwill, Equity Method Investments and Long-Lived Assets.
 
All of our goodwill is attributable to the regulated utility segment. We evaluate goodwill for impairment annually on October 31, or more frequently if impairment indicators arise during the year. An impairment charge would be recognized if the carrying value of the reporting unit, including goodwill, exceeded its fair value.
 
Our annual goodwill impairment assessment was performed at October 31, 2007, and we determined that there was no impairment to the carrying value of our goodwill. No impairment has been recognized during the years ended October 31, 2007, 2006 and 2005.
 
We review our equity method investments and long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amounts may not be recoverable. There were no events or circumstances during the years ended October 31, 2007, 2006 and 2005, that resulted in any impairment charges. For further information on equity method investments, see Note 11 to the consolidated financial statements.


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
G.   Unamortized Debt Expense.
 
Unamortized debt expense consists of costs, such as underwriting and broker dealer fees, discounts and commissions, legal fees, registration fees and rating agency fees, related to issuing long-term debt. We amortize debt expense on a straight-line basis, which approximates the effective interest method, over the life of the related debt which has lives ranging from 10 to 30 years.
 
H.   Inventories.
 
We maintain gas inventories on the basis of average cost. Injections into storage are priced at the purchase cost at the time of injection and withdrawals from storage are priced at the weighted average purchase price in storage. The cost of gas in storage is recoverable under rate schedules approved by state regulatory commissions. Inventory activity is subject to regulatory review on an annual basis in gas cost recovery proceedings.
 
Materials, supplies and merchandise inventories are valued at the lower of average cost or market and removed from such inventory at average cost.
 
I.   Deferred Purchased Gas Adjustments.
 
Rate schedules for utility sales and transportation customers include purchased gas adjustment (PGA) provisions that provide for the recovery of prudently incurred gas costs. With regulatory commission approval, we revise rates periodically without formal rate proceedings to reflect changes in the cost of gas. Under PGA provisions, charges to cost of gas are based on the gas cost amounts recoverable under approved rate schedules. By jurisdiction, differences between gas costs incurred and gas costs billed to customers are deferred and included in “Amounts due from customers” or “Amounts due to customers” in the consolidated balance sheets. We review gas costs and deferral activity periodically and, with regulatory commission approval, increase rates to collect under-recoveries or decrease rates to refund over-recoveries over a subsequent period.
 
J.   Taxes.
 
Deferred income taxes are determined based on the estimated future tax effects of differences between the book and tax basis of assets and liabilities. Deferred taxes are primarily attributable to utility plant, equity method investments and revenues and cost of gas. We have provided valuation allowances to reduce the carrying amount of deferred tax assets to amounts that are more likely than not to be realized. To the extent that the establishment of deferred income taxes is different from the recovery of taxes through the ratemaking process, the differences are deferred pursuant to Statement 71, and a regulatory asset or liability is recognized for the impact of tax expenses or benefits that will be collected from or refunded to customers in different periods pursuant to rate orders. We amortize deferred investment tax credits to income over the estimated useful lives of the property to which the credits relate.
 
General taxes consist primarily of property taxes and payroll taxes. These taxes are not included in revenues.
 
K.   Revenue Recognition.
 
Utility sales and transportation revenues are based on rates approved by state regulatory commissions. Base rates charged to jurisdictional customers may not be changed without formal approval by the regulatory commission in that jurisdiction; however, the wholesale cost of gas component of rates may be adjusted periodically under PGA provisions. A weather normalization adjustment (WNA) factor is included in rates charged to residential and commercial customers during the winter period November through March in all jurisdictions except EasternNC. The WNA is designed to offset the impact that warmer-than-normal or colder-


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
than-normal weather has on customer billings during the winter season. Effective November 1, 2005, in North Carolina, through a general rate case proceeding, the Customer Utilization Tracker (CUT) eliminated the WNA that had previously been used. The CUT provides for the recovery of our approved margin from residential and commercial customers independent of both weather and consumption patterns.
 
Revenues are recognized monthly on the accrual basis, which includes estimated amounts for gas delivered to customers but not yet billed under the cycle-billing method from the last meter reading date to month end. The unbilled revenue estimate reflects factors requiring judgment related to estimated usage by customer class, changes in weather during the period and the impact of the WNA or CUT mechanisms, as applicable.
 
Secondary market, or wholesale, sales revenues are recognized when the physical sales are delivered based on contract or market prices. See Note 3 regarding revenue sharing of secondary market transactions.
 
L.   Earnings Per Share.
 
We compute basic earnings per share using the weighted average number of shares of common stock outstanding during each period. A reconciliation of basic and diluted earnings per share for the years ended October 31, 2007, 2006 and 2005, is presented below.
 
                         
    2007     2006     2005  
    In thousands except per share amounts  
 
Net Income
  $ 104,387     $ 97,189     $ 101,270  
                         
Average shares of common stock outstanding for basic earnings per share
    74,250       75,863       76,680  
Contingently issuable shares under the Executive Long-Term Incentive Plan and Incentive Compensation Plan
    222       293       312  
                         
Average shares of dilutive stock
    74,472       76,156       76,992  
                         
Earnings Per Share:
                       
Basic
  $ 1.41     $ 1.28     $ 1.32  
Diluted
  $ 1.40     $ 1.28     $ 1.32  
 
M.   Statements of Cash Flows.
 
For purposes of reporting cash flows, we consider instruments purchased with an original maturity at date of purchase of three months or less to be cash equivalents.
 
N.   Use of Estimates.
 
We make estimates and assumptions when preparing the consolidated financial statements. These estimates and assumptions affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from estimates.
 
O.   Recently Issued Accounting Standards.
 
In June 2006, the Financial Accounting Standards Board (FASB) issued Interpretation 48, “Accounting for Uncertainty in Income Taxes” (FIN 48), to clarify the accounting for uncertain tax positions in accordance with SFAS 109, “Accounting for Income Taxes,” and in May 2007 issued Staff Position No. FIN 48-1, “Definition of Settlement in FASB Interpretation No. 48,” (FSP 48-1). FIN 48 defines a minimum recognition threshold that a tax position must meet to be recognized in an enterprise’s financial statements. Additionally,


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
FIN 48 provides guidance on derecognition, measurement, classification, interim period accounting, disclosure and transition requirements in accounting for uncertain tax positions. FSP 48-1 clarifies when a tax position is considered effectively settled under FIN 48. FIN 48 is effective the beginning of the first annual period beginning after December 15, 2006, and the guidance under FSP 48-1 should be applied upon the adoption of FIN 48. Accordingly, we will adopt FIN 48 and FSP 48-1 in our fiscal year 2008. We have assessed the impact FIN 48 may have on our consolidated financial statements. The adoption will not have a material impact on our financial position, results of operations or cash flows.
 
In September 2006, the FASB issued SFAS No. 157, “Fair Value Measurements” (Statement 157). Statement 157 provides enhanced guidance for using fair value to measure assets and liabilities and applies whenever other standards require (or permit) the measurement of assets or liabilities at fair value, but does not expand the use of fair value measurement to any new circumstances. Statement 157 establishes a fair value hierarchy that prioritizes the information used to develop those assumptions. The fair value hierarchy gives the highest priority to quoted prices in active markets and the lowest priority to unobservable data, for example, the reporting entity’s own data. Under Statement 157, fair value measurements would be separately disclosed by level within the fair value hierarchy. On November 14, 2007, the FASB delayed the implementation of Statement 157 for one year only for other nonfinancial assets and liabilities. Statement 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007, and interim periods within those fiscal years, with earlier application encouraged for financial assets and liabilities, as well as for any other assets and liabilities that are carried at fair value on a recurring basis. Accordingly, we will adopt Statement 157 no later than our first fiscal quarter in 2009. We believe the adoption of Statement 157 will not have a material impact on our financial position, results of operations or cash flows.
 
In September 2006, the FASB issued SFAS No. 158, “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans” (Statement 158). Statement 158 requires an employer to fully recognize the obligations associated with single-employer defined benefit pension, retiree healthcare and other postretirement plans in the financial statements by recognizing in its statement of financial position an asset for a plan’s overfunded status or a liability for a plan’s underfunded status rather than only disclosing the funded status in the footnotes to the financial statements. Statement 158 requires employers to recognize changes in the funded status of a defined benefit postretirement plan in the year in which the changes occur. Under Statement 158, gains and losses, prior service costs and credits, and any remaining transition amounts that have not yet been recognized through net periodic benefit cost will be recognized in accumulated other comprehensive income (OCI), net of tax effects, until they are amortized as a component of net periodic cost. Statement 158 also requires that the company measure a plan’s assets and its obligations that determine its funded status as of the end of the employer’s fiscal year. We are already in compliance with this requirement as our pension plans’ measurement dates are already the same as our fiscal year end date.
 
The requirement to recognize the funded status of a benefit plan and the related disclosure requirements applied as of the end of the fiscal year ending after December 15, 2006. Accordingly, we adopted the funded status portion of Statement 158 as of October 31, 2007. Adoption of Statement 158 on our financial position is shown below. The adoption of Statement 158 did not have a material effect on our results of operations or cash flows.
 
In August 2007, we filed petitions with the NCUC, the Public Service Commission of South Carolina (PSCSC) and the Tennessee Regulatory Authority (TRA) requesting the ability to place certain defined benefit postretirement obligations related to the implementation of Statement 158 in a regulatory deferred account instead of OCI. The petitions have been approved in all of the jurisdictions.


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
Based on the measurement of the various postretirement plans’ assets and benefit obligations as of October 31, 2007, the effect on our consolidated balance sheet of adopting Statement 158 is as follows.
 
                                         
    Before
    Minimum
                After
 
    Application of
    Pension Liability
    Adoption of
    Rate Deferral
    Application of
 
    Statement 158     Adjustment     Statement 158     Adjustments     Statement 158  
    In thousands  
 
Prepayments
  $ 22,435     $     $ (22,435 )   $     $  
Overfunded postretirement asset
                36,256             36,256  
Regulatory asset for postretirement benefits, noncurrent
                      1,865       1,865  
Accumulated other comprehensive income
    (78 )     24       7,346       (7,292 )      
Other current liabilities
                553             553  
Deferred income taxes (noncurrent)
    (51 )     16       4,754       (4,719 )      
Regulatory liability for postretirement benefits, noncurrent
                      13,876       13,876  
Accumulated provision for postretirement benefits
                17,469             17,469  
Other (deferred credits and other liabilities)
    16,342       (40 )     (16,302 )            
 
In February 2007, the FASB issued SFAS No. 159, “The Fair Value Option for Financial Assets and Financial Liabilities” (Statement 159). Statement 159 provides companies with an option to report selected financial assets and liabilities at fair value. Its objective is to reduce the complexity in accounting for financial instruments and to mitigate the volatility in earnings caused by measuring related assets and liabilities differently. Although Statement 159 does not eliminate disclosure requirements included in other accounting standards, it does establish additional presentation and disclosure requirements designed to facilitate comparisons between companies that choose different measurement attributes for similar types of assets and liabilities. Statement 159 is effective for financial statements issued for fiscal years beginning after November 15, 2007, with early adoption permitted for an entity that has elected also to apply Statement 157 early. Accordingly, we will adopt Statement 159 no later than our first fiscal quarter in 2009. We believe the adoption of Statement 159 will not have a material impact on our financial position, results of operations or cash flows.
 
2.   Acquisitions
 
Effective at the close of business on September 30, 2003, we purchased for $7.5 million in cash Progress Energy, Inc.’s (Progress) equity interest in EasternNC. At that time, EasternNC was a regulated utility with a certificate of public convenience and necessity to provide natural gas service to 14 counties in eastern North Carolina that previously were not served with natural gas. Progress’ equity interest in EasternNC consisted of 50% of EasternNC’s outstanding common stock and 100% of EasternNC’s outstanding preferred stock.
 
We recorded the assets purchased on September 30, 2003, at fair value, except for utility plant, franchises and consents and miscellaneous intangible property that were recorded at book value in accordance with Statement 71. We recorded estimated goodwill at closing of $1.1 million for EasternNC.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
On October 25, 2005, we purchased the remaining 50% interest in EasternNC for $1. EasternNC was merged into Piedmont immediately following the closing. The primary reason for the purchase of the remaining 50% interest was to integrate the rate structure of EasternNC into Piedmont’s rate structure.
 
3.   Regulatory Matters
 
Our utility operations are regulated by the NCUC, PSCSC and TRA as to rates, service area, adequacy of service, safety standards, extensions and abandonment of facilities, accounting and depreciation. We are also regulated by the NCUC as to the issuance of securities.
 
In April 2005, we filed a general rate case with the NCUC requesting a consolidation of the respective rate bases, revenues and expenses of Piedmont, North Carolina Natural Gas Corporation (NCNG) and EasternNC. In addition to a unified and uniform rate structure for all customers served by us in North Carolina, the application requested a general restructuring and increase in rates and charges for customers to produce an overall annual increase in margin of $36.7 million, a consolidation and/or amortization of certain deferred accounts, changes to cost allocations and rate design including a tariff mechanism that decouples margin recovery from residential and commercial customer consumption, changes and unification of existing service regulations and tariffs, common depreciation rates for plant and recovery of uncollectible gas costs through the gas cost deferred account.
 
In November 2005, the NCUC issued an order approving, among other things, an annual increase in margin of $20.2 million under the 2005 general rate case and authorizing new rates, effective November 1, 2005. The order provided for the elimination of the WNA mechanism in North Carolina and the establishment of a CUT that decouples margin recovery from residential and commercial customer consumption. The CUT is experimental and can be effective for no more than three years, subject to review and approval for extension in a future general rate case proceeding. The CUT provides for the recovery of our approved margin from residential and commercial customers independent of weather or other usage and consumption patterns. The CUT tracks our margin earned monthly and will result in semi-annual rate adjustments to refund any over-collection or recover any under-collection. We have been operating under the CUT for two years. During this time, we have made four rate adjustment filings to recover under-collections from residential and commercial customers. The latest of these four filings was made in October 2007, where we requested a rate adjustment, beginning November 1, 2007, to collect $32.1 million attributable to the period ended August 31, 2007. Each of these rate adjustment filings, including the October 2007 filing, has been approved by the NCUC.
 
Under the NCUC’s orders approving the CUT, in each of the three years the CUT is effective, we allocate $500,000 to energy conservation program funding and share, in each of the three years the CUT is effective, the first $3 million of CUT dollars that are non-weather related. Annually, the first $3 million of non-weather related CUT amounts will be allocated 25% to customer rate reduction, 25% to energy conservation program funding and 50% to us. Since the inception of the CUT on November 1, 2005, we have incurred charges of $4.2 million for the benefit of residential and commercial customers. The charges consist of $2.5 million for the funding of conservation programs in North Carolina, $1.5 million for the reduction of residential and commercial customer rates in North Carolina and $.2 million for interest accruals on the conservation funding and reduction of customer rates. The conservation programs are subject to review and approval by the NCUC. At October 31, 2007, we have a liability of $1.5 million out of the $4.2 million incurred charges related to these conservation programs.
 
The North Carolina General Assembly enacted the Clean Water and Natural Gas Critical Needs Act of 1998 which provided for the issuance of $200 million of general obligation bonds of the state for the purpose of providing grants, loans or other financing for the cost of constructing natural gas facilities in unserved areas of North Carolina. In 2000, the NCUC issued an order awarding EasternNC an exclusive franchise to provide natural gas service to 14 counties in the eastern-most part of North Carolina that had not been able to obtain gas service because of the relatively small population of those counties and the resulting uneconomic


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
feasibility of providing service. The order also granted $38.7 million in state bond funding. In 2001, the NCUC issued an order granting EasternNC an additional $149.6 million, for a total of $188.3 million. During the fiscal year ended October 31, 2006, we were reimbursed $16 million in construction costs by the state, the remaining balance of the bond fund as of October 31, 2005.
 
The NCUC had allowed EasternNC to defer its operations and maintenance expenses during the first eight years of operation or until the first rate case order, whichever occurred first, with a maximum deferral of $15 million. The deferred amounts accrued interest at a rate of 8.69% per annum. In December 2003, the NCUC confirmed that these deferred expenses should be treated as a regulatory asset for future recovery from customers to the extent they are deemed prudent and proper. As a part of the general rate case proceeding discussed above, deferral ceased on October 31, 2005, and the balance in the deferred account as of June 30, 2005, $7.9 million, including accrued interest, is being amortized over 15 years beginning November 1, 2005. Amortization of amounts totaling $1.3 million that were deferred between July 1 and October 31, 2005, will be addressed in our next North Carolina general rate case.
 
In October 2004, we filed a petition with the NCUC seeking deferred accounting treatment for certain pipeline integrity management costs to be incurred by us in compliance with the Pipeline Safety Improvement Act of 1992 and regulations of the United States Department of Transportation. The NCUC approved deferral treatment of these costs applicable to all incremental expenditures beginning November 1, 2004. As a part of the 2005 general rate case discussed above, the balance of $.4 million in the deferred account as of June 30, 2005, is being amortized over three years beginning November 1, 2005, and subsequent expenditures that total $4.3 million as of October 31, 2007 will continue to be deferred. Any unamortized balance at the end of the three years will be addressed in a future rate case.
 
On February 16, 2005, the Natural Gas Rate Stabilization Act (RSA) of 2005 became effective in South Carolina. The law provides electing natural gas utilities, including Piedmont, with a mechanism for the regular, periodic and more frequent (annual) adjustment of rates which is intended to: (1) encourage investment by natural gas utilities, (2) enhance economic development efforts, (3) reduce the cost of rate adjustment proceedings and (4) result in smaller but more frequent rate changes for customers. If the utility elects to operate under the Act, the annual filing will provide that the utility’s rate of return on equity will remain within a 50-basis points band above or below the current allowed rate of return on equity. In April 2005, we filed an election with the PSCSC to adopt this new mechanism.
 
In June 2005, we filed with the PSCSC a quarterly monitoring report for the twelve months ended March 31, 2005, along with revenue deficiency calculations and proposed changes in our tariff rates. In the filing, we requested an increase in annual margin of $3.2 million. In October 2005, the PSCSC issued an order approving an increase in annual margin of $2.6 million, effective November 1, 2005.
 
In June 2006, we filed with the PSCSC a quarterly monitoring report for the twelve months ended March 31, 2006, along with revenue deficiency calculations and proposed changes in our tariff rates. In the filing, we requested an increase in annual margin of $10.3 million. In September 2006, we, the Office of Regulatory Staff (ORS) and the South Carolina Energy Users Committee (SCEUC) filed a settlement agreement with the PSCSC addressing our proposed rate changes under the RSA. In September 2006, the PSCSC issued an order approving a $5.6 million increase in margin based on 11.2% return on equity effective November 1, 2006.
 
In June 2007, we filed with the PSCSC a quarterly monitoring report for the twelve months ended March 31, 2007 and a cost and revenue study as permitted by the RSA requesting no change in margin. In August 2007, we, the ORS and the SCEUC filed a settlement agreement with the PSCSC which will result in a $2.5 million annual decrease in margin based on a return of equity of 11.2%. In October 2007, the PSCSC issued an order approving the settlement, effective November 1, 2007.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
All three jurisdictions regulate our gas purchasing practices under a standard of prudence and audit our gas cost accounting practices. As part of this jurisdictional oversight, all three states address our gas supply hedging activities. Additionally, as detailed below, all three states allow for recovery of uncollectible gas costs through the PGA.
 
In August 2007, the NCUC approved our accounting for gas costs during the twelve months ended May 31, 2006, with adjustments agreed to by us as a result of the North Carolina Public Staff’s audit of the 2006 gas cost review period. We were deemed prudent on our gas purchasing policies and practices during this review period and allowed 100% recovery. In this order the NCUC also required us to discontinue the accounting practice of capitalizing and amortizing storage demand charges, effective no later than November 1, 2007. This action resulted in a margin decrease of $5.4 million in 2007.
 
During 2007, under the provisions of the August 2007 NCUC order, we recorded as restricted funds $2.2 million, including interest, of supplier refunds. In September 2007, we petitioned the NCUC for authority to liquidate all certificates of deposit and similar investments that held any supplier refunds due to customers. In October 2007, the NCUC approved the transfer of these restricted funds to the North Carolina all customers deferred account. The various certificates of deposit all mature by January 31, 2008.
 
In November 2007, the NCUC approved our accounting of gas costs for the twelve months ended May 31, 2007, with adjustments agreed to by us as a result of the North Carolina Public Staff’s audit of the 2007 gas cost review period. We were deemed prudent on our gas purchasing policies and practices during this review period and allowed 100% recovery.
 
Our hedging plan for North Carolina targets 30% to 60% of annual normalized sales volumes for North Carolina and operates using historical pricing indices that are tied to future projected gas prices as traded on a national exchange. Unlike South Carolina as discussed below, recovery of costs associated with the North Carolina hedging plan is not pre-approved by the NCUC, and the costs are treated as gas costs subject to the annual gas cost prudence review. Any gain or loss recognition are deemed to be reductions in or additions to gas costs, respectively, which, along with any hedging expenses, are flowed through to North Carolina customers in rates. The August 2007 gas cost review order and our November 2007 gas cost review order found our hedging activities during the two review periods to be reasonable and prudent.
 
Since November 1, 2005, the NCUC has allowed the recovery of all uncollectible gas costs through the gas cost PGA deferral account. As a result, the portion of uncollectibles related to gas costs is recovered through the deferred account and only the non-gas costs, or margin, portion of uncollectibles is included in base rates and uncollectibles expense.
 
In South Carolina, the PSCSC approved a settlement in August 2006 between us, the ORS and the SCEUC accepting our purchased gas adjustments and finding our gas purchasing policies prudent for the twelve months ended March 31, 2006. As part of this settlement, we began recovering uncollectible gas costs through the PGA effective November 1, 2006 in South Carolina. A settlement between us, the ORS and the SCEUC accepting our purchased gas adjustments and finding our gas purchasing policies prudent for the twelve months ended March 31, 2007 is pending before the PSCSC. We cannot determine the outcome of the proceeding at this time.
 
The PSCSC has approved a gas cost hedging plan for the purpose of cost stabilization for South Carolina customers. The plan targets 30% to 60% of annual normalized sales volumes for South Carolina and operates using historical pricing indices that are tied to future projected gas prices as traded on a national exchange. All properly accounted for costs incurred in accordance with the plan are deemed to be prudently incurred and are recovered in rates as gas costs. Any gain or loss recognition are deemed to be reductions in or additions to gas costs, respectively, and are flowed through to South Carolina customers in rates.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
In Tennessee, the Tennessee Incentive Plan (TIP) replaced annual prudence reviews under the Actual Cost Adjustment (ACA) mechanism in 1996 by benchmarking gas costs against amounts determined by published market indices and by sharing secondary market (capacity release and off-system sales) activity performance. The costs and benefits of hedging instruments and all other gas costs incurred are components of the TIP. In July 2005, in the order approving our 2004 TIP filing, the TRA established a separate docket to address issues raised by the Tennessee Consumer Advocate Staff and the TRA Staff related to the breadth of secondary market activities covered by the TIP, the method for selecting the independent consultant to review performance under the TIP, and the procedures utilized with respect to requests for proposal. In October 2007, the TRA approved our settlement with the staff of the TRA and the Tennessee Consumer Advocate Staff modifying our TIP with an effective date of July 1, 2006. The modifications clarify and simplify the calculation of allocated gains and losses to ratepayers and shareholders by adopting a uniform 75/25 sharing ratio, maintain the current $1.6 million annual incentive cap on gains and losses, improve the transparency of plan operations by an agreed to request for proposal procedures for asset management transactions and provide for a triennial review of TIP operations by an independent consultant.
 
In March 2003, we, along with two other natural gas companies in Tennessee, filed a petition with the TRA requesting a declaratory order that the gas cost portion of uncollectible accounts be recovered through PGA procedures. We requested that to the extent that the gas cost portion of net write-offs for a fiscal year is less than the gas cost portion included in base rates, the difference would be refunded to customers through the ACA filings. With TRA approval, this methodology was used on an experimental basis for two years. In August 2006, the TRA approved the methodology permanently.
 
Due to the seasonal nature of our business, we contract with customers in the secondary market to sell supply and capacity assets when available. In North Carolina and South Carolina, we operate under sharing mechanisms approved by the NCUC and the PSCSC for secondary market transactions where 75% of the net margins are flowed through to jurisdictional customers in rates and 25% is retained by us. In Tennessee, we operate under the amended TIP where gas purchase benchmarking gains and losses are combined with secondary market transaction gains and losses and shared 75% by customers and 25% by us. Our share of net gains or losses in Tennessee is subject to an overall annual cap of $1.6 million.
 
We filed a petition with the NCUC and the PSCSC in September 2006, and with the TRA in September 2006, for authorization to place certain ARO costs in deferred accounts so that the regulatory treatment for these costs will not be altered due to our adoption of FIN 47. The petitions were approved in all of the jurisdictions in November 2007, effective October 31, 2006.
 
In August 2007, we filed petitions with the NCUC, the PSCSC and the TRA requesting the ability to place certain defined benefit postretirement obligations related to the implementation of Statement 158 in a deferred account instead of OCI. The petitions have been approved in all of the jurisdictions.
 
We currently have commission approval in all three states that place additional credit requirements on the retail natural gas marketers that schedule gas into our system in order to mitigate the risk exposure to the financial condition of the marketers.
 
In August 2007, we requested authorization from the NCUC and the PSCSC to defer certain settlement charges that we believed we may have been required to recognize under SFAS No. 88, “Employers’ Accounting for Settlements and Curtailments of Defined Benefit Pension Plans and for Termination Benefits” as a result of lump sum distributions from our pension plans in our current fiscal year. Because these charges did not accrue, we withdrew the filing from North Carolina and it will not be necessary to exercise the authority we received from South Carolina.


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Table of Contents

Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
4.   Long-Term Debt
 
All of our long-term debt is unsecured. Long-term debt as of October 31, 2007 and 2006, is as follows.
 
                 
    2007     2006  
    In thousands  
 
Senior Notes:
               
8.51%, due 2017
  $ 35,000     $ 35,000  
Insured Quarterly Notes:
               
6.25%, due 2036
    199,887       200,000  
Medium-Term Notes:
               
7.35%, due 2009
    30,000       30,000  
7.80%, due 2010
    60,000       60,000  
6.55%, due 2011
    60,000       60,000  
5.00%, due 2013
    100,000       100,000  
6.87%, due 2023
    45,000       45,000  
8.45%, due 2024
    40,000       40,000  
7.40%, due 2025
    55,000       55,000  
7.50%, due 2026
    40,000       40,000  
7.95%, due 2029
    60,000       60,000  
6.00%, due 2033
    100,000       100,000  
                 
Total
    824,887       825,000  
Less current maturities
           
                 
Total
  $ 824,887     $ 825,000  
                 
 
Current maturities for the next five years ending October 31 and thereafter are as follows.
 
         
    In thousands  
 
2008
  $  
2009
    30,000  
2010
    60,000  
2011
    60,000  
2012
     
Thereafter
    674,887  
         
Total
  $ 824,887  
         
 
We have a shelf registration statement that can be used for either debt or equity securities filed with the Securities and Exchange Commission (SEC). The remaining balance of unused long-term financing available under this shelf registration statement is $109.4 million.
 
On September 1, 2007, $.1 million was paid to noteholders of the 6.25% insured quarterly notes based on a redemption right upon the death of the owner of the notes, within specified limitations.
 
The amount of cash dividends that may be paid on common stock is restricted by provisions contained in certain note agreements under which long-term debt was issued, with those for the senior notes being the most restrictive. We cannot pay or declare any dividends, make any other distribution on any class of stock or make any investments in subsidiaries, or permit any subsidiary to do any of the above (all of the foregoing being “restricted payments”), except out of net earnings available for restricted payments. As of October 31, 2007, we could make restricted payments totaling $540.7 million. Retained earnings as of this date were $379.7 million; therefore, our retained earnings were not restricted.


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
We are subject to cross-default provisions related to our long-term debt. An event of default under any of our debt agreements may result in total outstanding issues of debt becoming due. As of October 31, 2007, we are in compliance with all default provisions.
 
5.   Capital Stock and Accelerated Share Repurchase
 
Changes in common stock for the years ended October 31, 2005, 2006 and 2007, are as follows.
 
                 
    Shares     Amount  
    In thousands  
 
Balance, October 31, 2004
    76,670     $ 563,667  
Issued to participants in the Employee Stock Purchase Plan (ESPP)
    43       904  
Issued to the Dividend Reinvestment and Stock Purchase Plan (DRIP)
    1,013       22,632  
Issued to participants in the Executive Long-Term Incentive Plan (LTIP)
    77       1,796  
Shares repurchased under Common Stock Open Market Repurchase Plan
    (1,105 )     (26,119 )
                 
Balance, October 31, 2005
    76,698       562,880  
Issued to ESPP
    36       882  
Issued to DRIP
    735       17,496  
Issued to LTIP
    75       1,669  
Shares repurchased under Common Stock Open Market Repurchase Plan
    (1,080 )     (25,871 )
Shares repurchased under Accelerated Share Repurchase (ASR) Plan
    (1,000 )     (24,292 )
                 
Balance, October 31, 2006
    75,464       532,764  
Issued to ESPP
    34       809  
Issued to DRIP
    593       14,973  
Issued to LTIP
    117       3,264  
Shares repurchased under Common Stock Open Market Repurchase Plan
    (150 )     (3,953 )
Shares repurchased under ASR
    (1,850 )     (50,287 )
                 
Balance, October 31, 2007
    74,208     $ 497,570  
                 
 
In June 2004, the Board of Directors approved a Common Stock Open Market Purchase Program that authorizes the repurchase of up to three million shares of currently outstanding shares of common stock. We implemented the program in September 2004. We utilize a broker to repurchase the shares on the open market and such shares are cancelled and become authorized but unissued shares available for issuance under the ESPP, DRIP and LTIP.
 
On December 16, 2005, the Board of Directors approved an increase in the number of shares in this program from three million to six million to reflect the stock split in 2004. The Board also approved the repurchase of up to four million additional shares of currently outstanding shares of common stock and amended the program to provide for repurchases to maintain our debt-to-equity capitalization ratios at target levels. These combined actions increased the total authorized share repurchases from three million to ten million shares.
 
On November 3, 2006, we entered into an ASR agreement. On November 7, 2006, we purchased and retired 1 million shares of our common stock from an investment bank at the closing price that day of $26.48 per share. Total consideration paid to purchase the shares of $26.6 million, including $118,800 in commissions and other fees, was recorded in “Stockholders’ equity” as a reduction in “Common stock.”
 
As part of the ASR, we simultaneously entered into a forward sale contract with the investment bank that was expected to mature in approximately 50 trading days. Under the terms of the forward sale contract, the investment bank was required to purchase, in the open market, 1 million shares of our common stock during the term of the contract to fulfill its obligation related to the shares it borrowed from third parties and sold to


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
us. At settlement, we, at our option, were required to either pay cash or issue registered or unregistered shares of our common stock to the investment bank if the investment bank’s weighted average purchase price was higher than the November 7, 2006 closing price. The investment bank was required to pay us either cash or shares of our common stock, at our option, if the investment bank’s weighted average price for the shares purchased was lower than the November 7, 2006 closing price. At settlement on January 19, 2007, we paid cash of $.8 million to the investment bank and recorded this amount in “Stockholders’ equity” as a reduction in “Common stock.” The $.8 million was the difference between the investment bank’s weighted average purchase price of $27.3234 and the November 7, 2006 closing price of $26.48 per share multiplied by 1 million shares.
 
On March 30, 2007, we entered into an ASR agreement under the same terms. On April 2, 2007, we purchased and retired an additional 850,000 shares of our common stock from an investment bank at the closing price that day of $26.38 per share. Total consideration paid to purchase the shares of $22.5 million, including $25,500 in commissions and other fees, was recorded in “Stockholders’ equity” as a reduction in “Common stock.” At settlement on May 23, 2007, we paid cash of $.4 million to the investment bank and recorded this amount in “Stockholders’ equity” as a reduction in “Common stock.” The $.4 million was the difference between the investment bank’s weighted average purchase price of $26.8459 and the March 30, 2007 closing price of $26.38 per share multiplied by 1 million shares.
 
As of October 31, 2007, 2 million shares of common stock were reserved for issuance as follows.
 
         
    In thousands  
 
ESPP
    107  
DRIP
    896  
LTIP
    1,030  
         
Total
    2,033  
         
 
6.   Financial Instruments and Related Fair Value
 
We have a syndicated five-year revolving credit facility with aggregate commitments totaling $350 million, that may be increased up to $600 million, and that includes annual renewal options. We pay an annual fee of $35,000 plus six basis points for any unused amount up to $350 million. The facility provides a line of credit for letters of credit up to $5 million of which $1.5 million and $1.2 million were issued and outstanding at October 31, 2007 and 2006, respectively. These letters of credit are used to guarantee claims from self-insurance under our general liability policies. The credit facility bears interest based on the 30-day LIBOR rate plus from .15% to .35%, based on our credit ratings.
 
As of October 31, 2007 and 2006, outstanding borrowings under the lines are included in “Notes payable” in the consolidated balance sheets, and consisted of $195.5 million and $170 million, respectively, in LIBOR cost-plus loans at a weighted average interest rate of 4.96% in 2007 and 5.57% in 2006. Our credit facility’s financial covenants require us to maintain a ratio of total debt to total capitalization of no greater than 70%, and the actual ratio was 54% at October 31, 2007. As of October 31, 2007, the unused committed lines of credit totaled $153 million.
 
Our principal business activity is the distribution of natural gas. As of October 31, 2007, our trade accounts receivable consisted of gas receivables of $95.5 million and merchandise and jobbing receivables of $2.1 million, net of an allowance for doubtful accounts of $.5 million. We believe that we have provided an adequate allowance for any receivables which may not be ultimately collected.
 
In February 2005, we sold 37,244 common units of Energy Transfer Partners, LP, which we received in connection with the sale in January 2004 of our propane interests, for proceeds of $2.4 million, resulting in a pre-tax gain of $1.5 million. For further information on this transaction, see Note 11 to the consolidated financial statements.


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Piedmont Natural Gas Company, Inc.
 
Notes to Consolidated Financial Statements — (Continued)
 
The carrying amounts in the consolidated balance sheets of cash and cash equivalents, restricted cash, receivables, notes payable and accounts payable approximate their fair values due to the short-term nature of these financial instruments. Based on quoted market prices of similar issues having the same remaining maturities, redemption terms and credit ratings, the estimated fair value amounts of long-term debt as of October 31, 2007 and 2006, including current portion, were as follows.
 
                                 
    2007     2006  
    Carrying
    Fair
    Carrying
    Fair
 
    Amount     Value     Amount     Value  
    In thousands  
 
Long-term debt
  $ 824,887     $ 892,506     $ 825,000     $ 913,739  
 
The use of different market assumptions or estimation methodologies could have a material effect on the estimated fair value amounts. The fair value amounts reflect principal amounts that we will ultimately be required to pay.
 
We purchase natural gas for our regulated operations for resale under tariffs approved by the state regulatory commissions having jurisdiction over the service area where the customer is located. We recover the cost of gas purchased for regulated operations through purchased gas cost recovery mechanisms. We structure the pricing, quantity and term provisions of our gas supply contracts to maximize flexibility and minimize cost and risk for our customers. Our risk management policies allow us to use financial instruments to hedge risks. We have a management-level Energy Risk Management Committee that monitors risks in accordance with our risk management policies.