Annual Reports

  • 10-K (Feb 26, 2013)
  • 10-K (Feb 21, 2012)
  • 10-K (Feb 22, 2011)
  • 10-K (Feb 23, 2010)
  • 10-K (Feb 25, 2009)
  • 10-K (Feb 27, 2008)

 
Quarterly Reports

 
8-K

 
Other

ONEOK Partners LP 10-K 2010
form_10-k.htm


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-K

 X ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the fiscal year ended December 31, 2009.
OR
__ 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   1-12202

ONEOK PARTNERS, L.P.
(Exact name of registrant as specified in its charter)

Delaware
93-1120873
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer Identification No.)
 
   
100 West Fifth Street, Tulsa, OK
74103
(Address of principal executive offices)
(Zip Code)

Registrant’s telephone number, including area code   (918) 588-7000

Securities registered pursuant to Section 12(b) of the Act:
Common units
New York Stock Exchange
(Title of each class)
(Name of each exchange on which registered)

Securities registered pursuant to Section 12(g) of the Act:  None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes X No__.

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes __  No X.

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 X  No __

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every
Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes __ No __

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Registration 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. X

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company.  See definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.  (Check one)
Large accelerated filer X                            Accelerated filer __                            Non-accelerated filer __                            Smaller reporting company __

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). Yes__ No X.

Aggregate market value of the common units held by non-affiliates based on the closing trade price on June 30, 2009, was $2.7 billion.

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 February 12, 2010
Common units
 
65,162,777 units
Class B units
 
36,494,126 units
 
DOCUMENTS INCORPORATED BY REFERENCE: >None.

 
 

 

ONEOK PARTNERS, L.P.
2009 ANNUAL REPORT
Part I.
 
Page No.
 
Item 1.
 
Item 1A.
 
Item 1B.
 
 
 
 
 
5-15
 
15-30
 
30
Item 2.
 
30-32
Item 3.
 
32
Item 4.
 
32
Part II.
 
   
Item 5.
 
33-34
Item 6.
 
35
Item 7.
 
35-55
Item 7A.
 
55-56
Item 8.
 
57-87
Item 9.
 
 
Item 9A.
 
Item 9B.
 
 
87
 
 
88
 
88
 
Part III.
 
   
Item 10.
88-94
 
Item 11.
95-101
 
Item 12.
 
102
 
Item 13.
102-105
 
Item 14.
105-106
 
Part IV.
 
   
Item 15.
106-110
 
 
111
 
As used in this Annual Report, references to “we,” “our,” “us” or the “Partnership” refers to ONEOK Partners, L.P., its subsidiary, ONEOK Partners Intermediate Limited Partnership, and its subsidiaries, unless the context indicates otherwise.


GLOSSARY

The abbreviations, acronyms and industry terminology used in this Annual Report are defined as follows:

 
AFUDC
Allowance for funds used during construction
 
Annual Report
Annual Report on Form 10-K for the year ended December 31, 2009
 
ASU
Accounting Standards Update
 
Bbl
Barrels, 1 barrel is equivalent to 42 United States gallons
 
Bbl/d
Barrels per day
 
BBtu/d
Billion British thermal units per day
 
Bcf
Billion cubic feet
 
Bcf/d
Billion cubic feet per day
 
Bighorn Gas Gathering
Bighorn Gas Gathering, L.L.C.
 
Black Mesa Pipeline
Black Mesa Pipeline, Inc.
 
Btu(s)
British thermal units, a measure of the amount of heat required to raise the
     temperature of one pound of water one degree Fahrenheit
 
Bushton Plant
Bushton Gas Processing Plant
 
Clean Air Act
Federal Clean Air Act, as amended
 
Clean Water Act
Federal Water Pollution Control Act, as amended
 
EBITDA
Earnings before interest, taxes, depreciation and amortization
 
EBITDAR
Net income plus interest expense, income taxes, depreciation and amortization,
     and rent expense
 
EPA
United States Environmental Protection Agency
 
Exchange Act
Securities Exchange Act of 1934, as amended
 
FASB
Financial Accounting Standards Board
 
FERC
Federal Energy Regulatory Commission
 
Fort Union Gas Gathering
Fort Union Gas Gathering, L.L.C.
 
GAAP
Accounting principles generally accepted in the United States of America
 
Guardian Pipeline
Guardian Pipeline, L.L.C.
 
Heartland
Heartland Pipeline Company
 
Intermediate Partnership
ONEOK Partners Intermediate Limited Partnership, a wholly owned subsidiary
     of ONEOK Partners, L.P.
 
IRS
Internal Revenue Service
 
KCC
Kansas Corporation Commission
 
KDHE
Kansas Department of Health and Environment
 
LIBOR
London Interbank Offered Rate
 
Lost Creek Gathering Company
Lost Creek Gathering Company, L.L.C.
 
MBbl
Thousand barrels
 
MBbl/d
Thousand barrels per day
 
Midwestern Gas Transmission
Midwestern Gas Transmission Company
 
MMBbl
Million barrels
 
MMBtu
Million British thermal units
 
MMBtu/d
Million British thermal units per day
 
MMcf/d
Million cubic feet per day
 
Moody’s
Moody’s Investors Service, Inc.
 
Natural Gas Act
Natural Gas Act of 1938, as amended
 
Natural Gas Policy Act
Natural Gas Policy Act of 1978, as amended
 
NBP Services
NBP Services, LLC, a wholly owned subsidiary of ONEOK
 
NGL products
Marketable natural gas liquid purity products, such as ethane, ethane/propane
     mix, propane, iso-butane, normal butane and natural gasoline
 
NGL(s)
Natural gas liquid(s)
 
Northern Border Pipeline
Northern Border Pipeline Company
 
NYMEX
New York Mercantile Exchange
 
NYSE
New York Stock Exchange
 
OBPI
ONEOK Bushton Processing Inc.
 
OCC
Oklahoma Corporation Commission
 
OkTex Pipeline
OkTex Pipeline Company, L.L.C.
 
ONEOK
ONEOK, Inc.
 
ONEOK NB
ONEOK NB Company, a wholly owned subsidiary of ONEOK


 
ONEOK Partners GP
ONEOK Partners GP, L.L.C., a wholly owned subsidiary of ONEOK and our
     sole general partner
 
OPIS
Oil Price Information Service
 
Overland Pass Pipeline Company
Overland Pass Pipeline Company LLC
 
Partnership Agreement
Third Amended and Restated Agreement of Limited Partnership of ONEOK
     Partners, L.P., as amended
 
Partnership Credit Agreement
The Partnership’s $1.0 billion amended and restated revolving credit agreement
     dated March 30, 2007
 
POP
Percent of Proceeds
 
RRC
Texas Railroad Commission
 
S&P
Standard & Poor’s Rating Group
 
SEC
Securities and Exchange Commission
 
Securities Act
Securities Act of 1933, as amended
 
TransCanada
TransCanada Corporation
 
Viking Gas Transmission
Viking Gas Transmission Company
 
XBRL
eXtensible Business Reporting Language

The statements in this Annual Report that are not historical information, including statements concerning plans and objectives of  management for future operations, economic performance or related assumptions, are forward-looking statements.  Forward-looking statements may include words such as “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” “should,” “goal,” “forecast,” “guidance,” “could,” “may,” “continue,” “might,” “potential,” “scheduled”  and other words and terms of similar meaning.  Although we believe that our expectations regarding future events are based on reasonable assumptions, we can give no assurance that such expectations or assumptions will be achieved.  Important factors that could cause actual results to differ materially from those in the forward-looking statements are described under Part I,  Item 1A, Risk Factors, and Part II, Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operation, and “Forward-Looking Statements,” in this Annual Report.
 

 
ITEM 1.                      BUSINESS
 
GENERAL
 
ONEOK Partners, L.P. is a publicly traded Delaware master limited partnership that was formed in 1993.  Our common units are listed on the NYSE under the trading symbol “OKS.”  We are one of the largest publicly traded master limited partnerships and a leader in the gathering, processing, storage and transportation of natural gas in the United States.  In addition, we own one of the nation’s premier natural gas liquids systems, connecting NGL supply in the Mid-Continent and Rocky Mountain regions with key market centers.  We also own a 50 percent equity interest in a leading transporter of natural gas imported from Canada into the United States.

DESCRIPTION OF BUSINESS

Partnership Structure

We are managed under the direction of the Board of Directors of our sole general partner, ONEOK Partners GP, which consists of 10 members.  Seven of our Board members qualify as independent under the listing standards of the NYSE and also serve as the Audit Committee of ONEOK Partners GP.  Four of our independent directors serve on the Conflicts Committee.

ONEOK Partners GP is a wholly owned subsidiary of ONEOK.  Three of our members that are independent under NYSE listing standards and one management member of the Board of Directors of our general partner are also members of ONEOK’s Board of Directors, with the management member being the only management member of ONEOK’s Board of Directors.  As of December 31, 2009, ONEOK and its subsidiaries owned a 45.1 percent aggregate equity interest in us.  As a result of our February 2010 public offering of common units, ONEOK and its subsidiaries own a 42.8 percent aggregate equity interest in us.
 
Business Strategy
 
Our primary business strategy is to increase distributable cash flow through consistent earnings growth while focusing on safe, reliable, environmentally responsible and legally compliant operations for our customers, employees, contractors and the public through the following:
·  
growing fee-based earnings;
·  
developing and executing internally generated growth projects;
·  
executing strategic acquisitions; and
·  
managing our balance sheet to maintain strong credit ratings at or above current investment-grade levels.

Outlook

We expect a moderate economic recovery in 2010, with inflationary pressures beginning in 2011.  Although recent volatility in the financial markets could limit our access to financial markets on a timely basis or increase our cost of capital in the future, we anticipate improved credit markets during 2010, compared with 2009; however, inflation risk may increase the cost of capital.  We anticipate the consolidation of underperforming assets in the industry, particularly those with high commodity price exposure and/or high levels of debt.  Additionally, we anticipate an improving commodity price environment during 2010, compared with 2009. 

We intend to pursue growth in our natural gas businesses through well connections and contract renegotiations and through new plant construction, expansions and extensions of our existing systems and plants.  For our natural gas liquids business, we intend to continue to focus on adding new supply connections and expanding our existing assets.  We plan to spend approximately $362 million on capital expenditures in 2010, of which approximately $278 million is expected to be for growth projects.  We may also pursue strategic acquisitions related to gathering, processing, fractionating, storing, transporting or marketing natural gas and NGLs.


SIGNIFICANT DEVELOPMENTS

·  
Guardian Pipeline’s natural gas pipeline expansion and extension project;
·  
Williston Basin natural gas processing plant expansion;
·  
Arbuckle natural gas liquids pipeline;
·  
D-J Basin lateral natural gas liquids pipeline; and
·  
Piceance lateral natural gas liquids pipeline.

For further discussion on these projects, see “Capital Projects” beginning on page 37.

Equity Issuances> - In July 2009, we completed an underwritten public offering of 5,486,690 common units, including the partial exercise by the underwriters of their over-allotment option, at $45.81 per common unit, generating net proceeds of approximately $241.6 million.  In conjunction with the offering, ONEOK Partners GP contributed an aggregate of $5.1 million in order to maintain its 2 percent general partner interest in us.  We used the proceeds from the sale of common units and the general partner contributions to repay borrowings under our Partnership Credit Agreement and for general partnership purposes.

In February 2010, we completed an underwritten public offering of 5,500,900 common units, including the partial exercise by the underwriters of their over-allotment option, at $60.75 per common unit, generating net proceeds of approximately $322.6 million.  In conjunction with the offering, ONEOK Partners GP contributed $6.8 million in order to maintain its 2 percent general partner interest in us.  We used the proceeds from the sale of common units and the general partner contribution to repay borrowings under our Partnership Credit Agreement and for general partnership purposes.  As a result of these transactions, ONEOK and its subsidiaries own a 42.8 percent aggregate equity interest in us.


SEGMENT FINANCIAL INFORMATION

We implemented changes to the structure of our previous reportable business segments during the third quarter of 2009 to better align them with how we manage our businesses.  Our financial results are now reported in these three reportable business segments: (i) Natural Gas Gathering and Processing; (ii) Natural Gas Pipelines, both of which remain unchanged; and (iii) Natural Gas Liquids, which consolidates our former natural gas liquids gathering and fractionation segment with our former natural gas liquids pipelines segment, due to the integrated manner in which they are managed.  Prior-period amounts have been recast to reflect these segment changes.



 
Years Ended December 31,
Percentage of Intersegment Revenues to Total Revenues
 
2009
 
2008
   
2007
 
Natural Gas Gathering and Processing
 
33%
 
39%
   
35%
 
Natural Gas Pipelines
 
*
 
*
   
*
 
Natural Gas Liquids
 
*
 
*
   
*
 
* Represents a value of less than 1 percent.
               
 
See Note M of the Notes to Consolidated Financial Statements in this Annual Report for additional information about intersegment revenues.
 

NARRATIVE DESCRIPTION OF BUSINESS

Natural Gas Gathering and Processing


Description of Business> - Our Natural Gas Gathering and Processing segment’s operations include gathering and processing of natural gas produced from crude oil and natural gas wells.  We gather and process natural gas in the Mid-Continent region, which includes the Anadarko Basin of Oklahoma and the Hugoton and Central Kansas Uplift Basins of Kansas.  We also gather and/or process natural gas in two producing basins in the Rocky Mountain region: the Williston Basin, which spans portions of Montana and North Dakota, and the Powder River Basin of Wyoming.  The natural gas we gather in the Powder River Basin of Wyoming is coal bed methane, or dry gas, that does not require processing or NGL extraction, in order to be marketable; dry gas is gathered, compressed and delivered into a downstream pipeline or marketed for a fee.

In the Mid-Continent region and the Williston Basin, unprocessed natural gas is compressed and transported through pipelines to processing facilities where volumes are aggregated, treated and processed to remove water vapor, solids and other contaminants, and to extract NGLs in order to provide marketable natural gas, commonly referred to as residue gas.   The residue gas, which consists primarily of methane, is compressed and delivered to natural gas pipelines for transportation to end users.  When the NGLs are separated from the unprocessed natural gas at the processing plants, the NGLs are generally in the form of a mixed, unfractionated NGL stream.  This unfractionated NGL stream is shipped to fractionators where, through the application of heat and pressure, the unfractionated NGL stream is separated into NGL products.  Our natural gas and NGL products are sold to affiliates and a diverse customer base.

Our natural gas processing operations utilize straddle and field gas processing plants to extract NGLs and remove water vapor and other contaminants from the unprocessed natural gas stream.  A straddle gas processing plant is situated on a pipeline system and relies on the pipeline’s natural gas throughput volume, which subjects the plant to increased supply risk as it is dependent upon the throughput of a single pipeline rather than several supply sources.  Field gas processing plants process natural gas gathered from multiple producing wells.

We generally gather and process gas under the following types of contracts.
·  
POP - Under a POP contract, we retain a percentage of the NGLs and/or a percentage of the residue gas as payment for gathering, treating, compressing and processing the producer’s natural gas.  The producer may take its share of the NGLs and residue gas in-kind or receive its share of proceeds from our sale of the commodities.   POP contracts expose us to both natural gas and NGL commodity price risk but economically align us with the producer because we both benefit from higher commodity prices.  This type of contract represented approximately 32 percent and 34 percent of contracted volumes for 2009 and 2008, respectively.  There are a variety of factors that directly affect our POP margins, including:
-  
the percentages of products retained that represent our equity NGL, condensate and residue gas sales volumes;
-  
transportation and fractionation costs incurred on the NGLs; and
-  
the natural gas, crude oil and NGL prices received for our retained products.
·  
Fee - Under a fee-based contract, we are paid a fee for the services provided that is based on Btus gathered, compressed and/or processed.  The wellhead volume and fees received for the services provided are the main components of our margin for this type of contract.  The producer typically takes its NGLs and residue gas in-kind.  Our POP and keep-whole contracts also typically include fee provisions, which are a portion of the fees reported in this category.  Our fee-based contracts and contract provisions primarily expose us to volumetric risk with minimal commodity price risk and represented approximately 63 percent and 58 percent of contracted volumes for 2009 and 2008, respectively.
·  
Keep-Whole - Under a keep-whole processing contract, we extract NGLs from the unprocessed natural gas and return to the producer volumes of residue gas containing the same amount of Btus as the unprocessed natural gas that was delivered to us.  We retain the NGLs as our fee for processing.  Accordingly, we must purchase and return to the producer sufficient volumes of residue gas to replace the Btus that were removed as NGLs through the gathering and processing operation, commonly referred to as “shrink.”  Under index-based purchase agreements, we purchase unprocessed natural gas at the wellhead to replace the natural gas that we consume in processing, and we typically bear the full cost of the plant fuel and shrink, with the excess residue gas being sold monthly at index-based prices.  By using this contract type, the producer is kept whole on a Btu basis.  This type of contract exposes


 
us to the keep-whole spread, or gross processing spread, which is the relative difference in the economic value between NGLs and natural gas on a Btu basis.  This type of contract represented approximately 5 percent and 8 percent of contracted volumes for 2009 and 2008, respectively, with approximately 84 percent and 89 percent of that contracted volume containing language that effectively converts these contracts into fee contracts when the gross processing spread is negative.  The main factors that affect our keep-whole margins include:
-  
shrink;
-  
plant fuel consumed;
-  
transportation and fractionation costs incurred on the NGLs;
-  
gross processing spread; and
-  
the natural gas, crude oil and NGL prices received for products sold.

Revenues of this segment are derived primarily from fee and POP contracts.  We use derivative instruments to mitigate our sensitivity to fluctuations in the natural gas, crude oil and NGL prices received for our share of volumes sold.

·  
49 percent ownership interest in Bighorn Gas Gathering, which operates a major coal bed methane gathering system serving a broad production area in northeast Wyoming;
·  
37 percent ownership interest in Fort Union Gas Gathering, which gathers coal bed methane gas produced in the Powder River Basin and delivers natural gas into the interstate pipeline grid;
·  
35 percent ownership interest in Lost Creek Gathering Company, which gathers natural gas produced from conventional wells in the Wind River Basin of central Wyoming and delivers natural gas into the interstate pipeline grid; and
·  
10 percent ownership interest in Venice Energy Services Co., LLC, a gas processing complex near Venice, Louisiana.

See Note N of the Notes to Consolidated Financial Statements in this Annual Report for additional discussion of unconsolidated affiliates.

 
In the Mid-Continent region, our gathering and processing assets in the Anadarko Basin of Oklahoma and the Hugoton and Central Kansas Uplift Basins of Kansas are well established.  We anticipate continuing volumetric declines in most non-shale wells that supply our gathering and processing operations; however, we expect this to be more than offset by the increased drilling activity in the Cana Woodford Shale area of Western Oklahoma, in which we have a substantial gathering position.

In the Rocky Mountain region, we have seen declines in gathered volumes in the Powder River Basin; however, our Williston Basin volumes are growing as drilling activity increases, primarily driven by producer development of Bakken Shale oil wells, which also produce natural gas containing significant NGLs.

Demand - Demand for gathering and processing services is typically aligned with the production of natural gas.  Our plant operations can be adjusted to respond to market conditions, such as demand for ethane.  By changing operating parameters at certain plants, we can reduce, to some extent, the amount of ethane and propane recovered if prices or processing margins are unfavorable.

Commodity Prices - Crude oil, natural gas and NGL prices are volatile due to market conditions.  Storage injection and withdrawal rates, as well as available storage capacity, can also have an impact on commodity prices.  We are exposed to commodity price risk as a result of receiving commodities in exchange for our services.  To a lesser extent, exposures arise from the gross processing spread with respect to our keep-whole processing contracts.  We are also exposed to the risk of price fluctuations and the cost of transportation at various market locations, and the demand for our products by the petrochemical industry and other consumers.

Seasonality - Some of this segment’s products are subject to weather-related seasonal demand.  Cold temperatures typically increase demand for natural gas and propane, which are used to heat homes and businesses.  Warm temperatures typically drive demand for natural gas used for gas-fired electric generation needed to meet the electricity demand required to cool residential and commercial properties.  Demand for iso-butane and natural gasoline, which are primarily used by the refining


industry as blending stocks for motor fuel, may also be subject to some variability as automotive travel increases and as seasonal gasoline formulation standards are implemented.  During periods of peak demand for a certain commodity, prices for that product typically increase, which may influence processing decisions.

Competition - The gathering and processing business remains relatively fragmented despite significant consolidation in the industry.  We compete for natural gas supplies with independent exploration and production companies that have gathering and processing assets, pipeline companies and their affiliated marketing companies, national and local natural gas gatherers and processors, and marketers in the Mid-Continent and Rocky Mountain regions.  The factors that typically affect our ability to compete for natural gas supplies are:
·  
fees charged under our gathering and processing contracts;
·  
pressures maintained on our gathering systems;
·  
location of our gathering systems relative to those of our competitors;
·  
location of our gathering systems relative to drilling activity;
·  
efficiency and reliability of our operations; and
·  
delivery capabilities that exist in each system and plant location.

We are responding to these industry conditions by making capital investments to improve natural gas processing efficiency and reduce operating costs, evaluating consolidation opportunities to maximize earnings, selling assets in non-core operating areas and renegotiating unprofitable contracts.  The principal goal of the contract renegotiation effort is to eliminate unprofitable contracts and improve margins, primarily during periods when the gross processing spread is negative.

Government Regulation >- The FERC has traditionally maintained that a processing plant is not a facility for the transportation or sale for resale of natural gas in interstate commerce and, therefore, is not subject to jurisdiction under the Natural Gas Act.  Although the FERC has made no specific declaration as to the jurisdictional status of our natural gas processing operations or facilities, our natural gas processing plants are primarily involved in removing NGLs and, therefore, we believe, are exempt from FERC jurisdiction.  The Natural Gas Act also exempts natural gas gathering facilities from the jurisdiction of the FERC.  We believe our gathering facilities and operations meet the criteria used by the FERC for non-jurisdictional gathering facility status.  However, we are subject to newly adopted FERC regulations that require us to publicly post certain gas flow information on our Web sites.  Interstate transmission facilities remain subject to FERC jurisdiction.  The FERC has historically distinguished between these two types of facilities, either interstate or intrastate, on a fact-specific basis.  We transport residue gas from our plants to interstate pipelines in accordance with Section 311(a) of the Natural Gas Policy Act.

Oklahoma, Kansas, Wyoming, Montana and North Dakota also have statutes regulating, to various degrees, the gathering of natural gas in those states.  In each state, regulation is applied on a case-by-case basis if a complaint is filed against the gatherer with the appropriate state regulatory agency.

See further discussion in the “Environmental and Safety Matters” section.
 
Natural Gas Pipelines
 


Our interstate natural gas pipeline assets transport natural gas through FERC-regulated interstate natural gas pipelines in North Dakota, Minnesota, Wisconsin, Illinois, Indiana, Kentucky, Tennessee, Oklahoma, Texas and New Mexico.  Our interstate pipelines include:
·  
Midwestern Gas Transmission, which is a bi-directional system that interconnects with Tennessee Gas Transmission Company near Portland, Tennessee, and with several interstate pipelines near Joliet, Illinois;
·  
Viking Gas Transmission, which transports natural gas from an interconnection with TransCanada near Emerson, Manitoba, to an interconnection with ANR Pipeline Company near Marshfield, Wisconsin;
·  
Guardian Pipeline interconnects with several pipelines in Joliet, Illinois, and with local distribution companies in Wisconsin; and
·  
OkTex Pipeline, which has interconnects in Oklahoma, New Mexico and Texas.

 
Our intrastate natural gas pipeline assets in Oklahoma have access to the major natural gas producing areas and transport natural gas throughout the state.  We also have access to the major natural gas producing area in south central Kansas.  In Texas, our intrastate natural gas pipelines are connected to the major natural gas producing areas in the Texas panhandle and the Permian Basin and transport natural gas to the Waha Hub, where other pipelines may be accessed for transportation to western markets, the Houston Ship Channel market to the east and the Mid-Continent market to the north.
 
We own underground natural gas storage facilities in Oklahoma, Kansas and Texas.

Our transportation contracts for our regulated natural gas activities are based upon rates stated in our tariffs.  Tariffs specify the maximum rates customers can be charged, which can be discounted to meet competition if necessary, and the general terms and conditions for pipeline transportation service, which are established at FERC or appropriate state jurisdictional agency proceedings known as rate cases.  In Texas and Kansas, natural gas storage service is a fee business that may be regulated by the state in which the facility operates and by the FERC for certain types of services.  In Oklahoma, natural gas gathering and natural gas storage operations are also a fee business, but are not subject to rate regulation by the OCC and have market-based rate authority from the FERC for certain types of services.

Our Natural Gas Pipelines segment’s revenues are typically derived from fee services from the following types of contracts.
·  
Firm Service - Customers can reserve a fixed quantity of pipeline or storage capacity for the term of their contract.  Under this type of contract, the customer pays a fixed fee for a specified quantity regardless of their actual usage.  The customer then typically pays incremental fees, known as commodity charges, that are based upon the actual volume of natural gas they transport or store, and/or we may retain a specified volume of natural gas in-kind for fuel.  Under the firm-service contract, the customer is generally guaranteed access to the capacity they reserve.
·  
Interruptible Service - Customers with interruptible service transportation and storage agreements may utilize available capacity after firm-service requests are satisfied or on an as-available basis.  Interruptible service customers are typically assessed fees, such as a commodity charge, based on their actual usage, and/or we may retain a specified volume of natural gas in-kind for fuel.  Under the interruptible service contract, the customer is not guaranteed use of our pipelines and storage facilities unless excess capacity is available.

·  
50 percent interest in Northern Border Pipeline, an interstate, FERC-regulated pipeline which transports natural gas from the Montana-Saskatchewan border near Port of Morgan, Montana, to a terminus near North Hayden, Indiana; and
·  
48 percent ownership interest in Sycamore Gas System, which is a gathering system with compression located in south central Oklahoma.

See Note N of the Notes to Consolidated Financial Statements in this Annual Report for additional discussion of unconsolidated affiliates.

Market Conditions and Seasonality >- Supply - The supply of natural gas for Viking Gas Transmission and Northern Border Pipeline originates in Canada.  Significant factors that can impact the supply of Canadian natural gas transported by our pipelines are the Canadian natural gas available for export, Canadian storage capacity and demand for Canadian natural gas in other U.S. consumer markets.  Guardian Pipeline and Midwestern Gas Transmission access supply from the major producing regions of the Mid-Continent, Rocky Mountains, Canada and Gulf Coast.  The supply of natural gas to our Mid-Continent pipelines and storage assets currently depends on the pace of natural gas drilling activity by producers and the decline rate of existing production in the major natural gas production areas in the Mid-Continent region, which includes the Anadarko Basin, Hugoton Basin, Central Kansas Uplift Basin, Permian Basin and the Texas Panhandle.  United States natural gas drilling rig counts began to decline in 2008 and continued until mid-2009 when they began to increase.
 
Demand - Demand for pipeline transportation service and natural gas storage is directly related to demand for natural gas in the markets that the natural gas pipelines and storage facilities serve, and is affected by weather, the economy, and natural gas and NGL price volatility.  The effect of weather on our natural gas pipelines operations is discussed below under “Seasonality.”  The strength of the economy directly impacts manufacturing and industrial companies that consume natural gas.  Commodity price volatility can influence producers’ decisions related to the production of natural gas, the level of NGLs processed from natural gas, and natural gas storage injection and withdrawal activity.
 
Commodity Prices - We are exposed to market risk when existing contracts expire and are subject to renegotiation with customers that have competitive alternatives and analyze the market price differential between receipt and delivery points along the pipeline, also known as basis differential, to determine their expected gross margin.  The anticipated margin and its variability are important determinants of the transportation rate customers are willing to pay.  Natural gas storage revenue is


impacted by the differential between forward pricing of natural gas physical contracts and the price of natural gas on the spot market.  Our fuel costs and the value of the retained fuel in-kind are also impacted by changes in the price of natural gas.

Seasonality - Demand for natural gas is seasonal.  Weather conditions throughout the United States can significantly impact regional natural gas supply and demand.  High temperatures can increase demand for gas-fired electric generation needed to meet the electricity demand required to cool residential and commercial properties.  Cold temperatures can lead to greater demand for our transportation services due to increased demand for natural gas to heat residential and commercial properties.  Low precipitation levels can impact the demand for natural gas that is used to fuel irrigation activity in the Mid-Continent region.

To the extent that pipeline capacity is contracted under firm-service transportation agreements, revenue, which is generated primarily from demand charges, is not significantly impacted by seasonal throughput variations.  However, when transportation agreements expire, seasonal demand can impact the value of firm-service transportation capacity.

Natural gas storage is necessary to balance the relatively steady natural gas supply with the seasonal demand of residential, commercial and electric power generation users.  The majority of our storage capacity is contracted under firm-service agreements.  A small portion of our storage capacity is retained for operational purposes.

Competition - Our natural gas pipelines compete directly with other intrastate and interstate pipeline companies and other storage facilities for natural gas.  Our natural gas assets primarily serve local distribution companies, large industrial companies, municipalities, irrigation customers, power generation facilities and marketing companies.  Competition among pipelines and natural gas storage facilities is based primarily on fees for services, quality of services provided, current and forward natural gas prices, and proximity to natural gas supply areas and markets.  Competition for natural gas transportation services continues to increase as the FERC and state regulatory bodies continue to encourage more competition in the natural gas markets.  We believe that we compete effectively with our pipelines and storage assets due to their strategic locations connecting supply areas to market centers and other pipelines.


Likewise, our intrastate natural gas pipelines in Oklahoma, Kansas and Texas are regulated by the OCC, KCC and RRC, respectively.  While we have flexibility in establishing natural gas transportation rates with customers, there is a maximum rate that we can charge our customers in Oklahoma and Kansas.  In Kansas and Texas, natural gas storage may be regulated by the state and by the FERC for certain types of services.  In Oklahoma, natural gas gathering and storage are not subject to rate regulation and have market-based rate authority for certain types of services.

See further discussion in the “Environmental and Safety Matters” section.

Natural Gas Liquids


Description of Business >- Our natural gas liquids assets consist of facilities that gather, fractionate and treat NGLs and store NGL products primarily in Oklahoma, Kansas and Texas.  We own FERC-regulated natural gas liquids gathering and distribution pipelines in Oklahoma, Kansas, Texas, Wyoming and Colorado, and terminal and storage facilities in Missouri, Nebraska, Iowa and Illinois.  We also own FERC-regulated natural gas liquids distribution and refined petroleum products pipelines in Kansas, Missouri, Nebraska, Iowa, Illinois and Indiana that connect our Mid-Continent assets with Midwest markets, including Chicago, Illinois.  The majority of the pipeline-connected natural gas processing plants in Oklahoma, Kansas and the Texas panhandle, which extract NGLs from unprocessed natural gas, are connected to our gathering systems.
 
Most natural gas produced at the wellhead contains a mixture of NGL components such as ethane, propane, iso-butane, normal butane and natural gasoline.  Natural gas processing plants remove the NGLs from the natural gas stream to realize the higher economic value of the NGLs and to meet natural gas pipeline-quality specifications, which limit NGLs in the

 
natural gas stream due to liquid and Btu content.  The NGLs that are separated from the natural gas stream at the natural gas processing plants remain in a mixed, unfractionated form until they are gathered, primarily by pipeline, and delivered to fractionators where the NGLs are separated into NGL products.  These NGL products are then stored or distributed to our customers, such as petrochemical manufacturers, heating fuel users, refineries and propane distributors.  We also purchase NGLs and condensate from third parties, as well as from our Natural Gas Gathering and Processing segment.

Revenues for our Natural Gas Liquids segment are derived primarily from exchange services, optimization and marketing, pipeline transportation, isomerization and storage, defined as follows:
·  
Our exchange services business primarily collects fees to gather, fractionate and treat unfractionated NGLs, thereby converting them into marketable NGL products that are stored and shipped to a market center or customer-designated location.
·  
Our optimization and marketing business utilizes our assets, contract portfolio and market knowledge to capture locational and seasonal price differentials.  We move NGL products between Conway, Kansas, and Mont Belvieu, Texas, in order to capture the locational price differentials between the two market centers.  Our NGL storage facilities are also utilized to capture seasonal price variances.
·  
Our pipeline transportation business transports NGLs and refined petroleum products primarily under our FERC-regulated tariffs.  Tariffs specify the rates we charge our customers and the general terms and conditions for NGL transportation service on our pipelines.
·  
Our isomerization business captures the price differential when normal butane is converted into the more valuable iso-butane at an isomerization unit in Conway, Kansas.  Iso-butane is used in the refining industry to increase the octane of motor gasoline.
·  
Our storage business primarily collects fees to store NGLs at our Mid-Continent and Mont Belvieu facilities.

·  
50 percent ownership interest in Chisholm Pipeline Company, which operates an interstate natural gas liquids pipeline system extending approximately 185 miles from origin points in Oklahoma and Kansas; and
·  
50 percent ownership interest in Heartland, which operates a terminal and pipeline system that transports refined petroleum products in Kansas, Nebraska and Iowa.

See Note N of the Notes to Consolidated Financial Statements in this Annual Report for additional discussion of unconsolidated affiliates.


Our Natural Gas Liquids segment is also affected by operational or market-driven changes that impact the output of natural gas processing plants to which they are connected.  The differential between the composite price of NGL products and the price of natural gas, particularly the differential between the price of ethane and the price of natural gas, may influence processing plant NGL output.  For the majority of 2009, ethane prices remained above natural gas prices on a relative Btu basis, which resulted in ethane recovery from processing plants that deliver NGLs to our natural gas liquids gathering pipelines.  We expect ethane prices in 2010 to remain above natural gas prices on a relative Btu basis.

Demand - Demand for NGLs and the ability of natural gas processors to successfully and economically sustain their operations impacts the volume of unfractionated NGLs produced by natural gas processing plants, thereby affecting the demand for NGL gathering, fractionation and distribution services.  Natural gas and propane are subject to weather-related seasonal demand.  Other NGL products are affected by economic conditions and the demand associated with the various industries that utilize the commodity, such as butanes and natural gasoline, which are used by the refining industry as blending stocks for motor fuel, denaturant for ethanol and diluents for crude oil.  Ethane/propane mix, propane, normal butane and natural gasoline are used by the petrochemical industry to produce chemical products, such as plastic, rubber and synthetic fiber.
 
Commodity Prices - In recent years, crude oil, natural gas and NGL prices have been volatile due to market conditions.  We are exposed to market risk associated with adverse changes in the price of NGLs, the basis differential between the Mid-Continent, Chicago, Illinois, and Gulf Coast regions, and the relative price differential between natural gas, NGLs and individual NGL products, which impact our NGL purchases, sales, distribution, exchange and storage revenue.  When natural gas prices are higher relative to NGL prices, NGL production may decline, which could negatively impact our exchange


services and transportation revenues.  When the basis differential between the Mid-Continent and Gulf Coast regions is narrow, optimization opportunities and NGL shipments may decline, resulting in a decline in margin.  NGL storage revenue may be impacted by price volatility and forward pricing of NGL physical contracts versus the price of NGLs on the spot market.

Seasonality - Some NGL products produced, gathered and distributed by our natural gas liquids facilities are subject to weather-related seasonal demand, such as propane, which can be used to heat homes during the winter heating season and for agricultural purposes such as grain drying in the fall.  Demand for butanes and natural gasoline, which are primarily used by the refining industry as blending stocks for motor fuel, denaturant for ethanol and diluents for crude oil, may also be subject to some variability when automotive travel is higher and during seasonal periods when certain government restrictions on blending products are in place.

Competition - Our natural gas liquids business competes with other fractionators, intrastate and interstate pipeline companies, storage providers and gatherers for NGL supplies in the Rocky Mountain, Mid-Continent and Gulf Coast regions.  The factors that typically affect our ability to compete for NGL supplies are:
·  
quality of services provided;
·  
producer drilling activity;
·  
the petrochemical industry’s level of capacity utilization and feedstock requirements;
·  
fees charged under our contracts;
·  
current and forward NGL prices;
·  
pressures maintained on our gathering systems;
·  
location of our gathering systems relative to our competitors;
·  
location of our gathering systems relative to drilling activity;
·  
proximity to natural gas liquids supply areas and markets;
·  
efficiency and reliability of our operations; and
·  
delivery capabilities that exist in each system, plant, fractionator and storage location.

We are responding to these industry conditions by making capital investments to access new supplies, increase gathering and fractionation capacity, increase storage, withdrawal and injection capabilities and reduce operating costs so that we may effectively compete.  We believe that we compete effectively with our fractionation, pipelines and storage assets due to their strategic locations connecting supply areas to market centers.


See further discussion in the “Environmental and Safety Matters” section.

ENVIRONMENTAL AND SAFETY MATTERS

Additional information about our environmental matters is included in Note K of the Notes to Consolidated Financial Statements in this Annual Report.


Air and Water Emissions> - The Clean Air Act, the Clean Water Act and analogous state laws impose restrictions and controls regarding the discharge of pollutants into the air and water in the United States.  Under the Clean Air Act, a federally
enforceable operating permit is required for sources of significant air emissions.  We may be required to incur certain capital expenditures for air pollution-control equipment in connection with obtaining or maintaining permits and approvals for sources of air emissions.  The Clean Water Act imposes substantial potential liability for the removal of pollutants discharged to waters of the United States and remediation of waters affected by such discharge.  We are in compliance with all material requirements associated with the various air and water regulations.

 
The United States Congress is actively considering legislation to reduce greenhouse gas emissions, including carbon dioxide and methane.  In addition, other federal, state and regional initiatives to regulate greenhouse gas emissions are under way.  We are monitoring federal and state legislation to assess the potential impact on our operations.  We estimate our direct greenhouse gas emissions annually as we collect all applicable greenhouse gas emission data for the previous year. Our most recent estimate indicates that our emissions are less than 4 million metric tons of carbon dioxide equivalents on an annual basis.  We expect to complete our annual estimate for 2009 during the second quarter of 2010 and will post the information on our Web site when available.  We will continue efforts to improve our ability to quantify our direct greenhouse gas emissions and will report such emissions as required by the EPA’s Mandatory Greenhouse Gas Reporting rule released in September 2009.  The rule requires greenhouse gas emissions reporting for affected facilities on an annual basis, beginning with our 2010 emissions report that will be due in March 2011 and will require us to track the emission equivalents for all NGLs delivered to our customers.  At this time, no legislation or other rules have been enacted as to what costs, fees or expense will be associated with any of these emissions.  In addition, the EPA has issued a proposed rule on air-quality standards, “National Emission Standards for Hazardous Air Pollutants for Reciprocating Internal Combustion Engines,” also known as RICE NESHAP, scheduled to be adopted in early 2013.  The proposed rule will require capital expenditures over the next three years for the purchase and installation of new emissions-control equipment.  We do not expect these expenditures to have a material impact on our results of operations, financial position or cash flows.

 
Chemical Site Security> - The United States Department of Homeland Security (Homeland Security) released an interim rule in April 2007 that requires companies to provide reports on sites where certain chemicals, including many hydrocarbon products, are stored.  We completed the Homeland Security assessments, and our facilities were subsequently assigned, on a preliminary basis, one of four risk-based tiers ranging from high (Tier 1) to low (Tier 4) risk, or not tiered at all due to low risk.  One of our facilities has been given a Tier 4 rating, and four of our facilities have been given a preliminary Tier 4 rating.  We are currently waiting for Homeland Security’s analysis to determine if any of our other facilities will be tiered and require Site Security Plans and possible physical security enhancements.

Pipeline Security> - Homeland Security’s Transportation Security Administration, along with the United States Department of Transportation, has completed a review and inspection of our “critical facilities” and identified no material security issues.

Environmental Footprint> - Our environmental and climate change strategy focuses on taking steps to minimize the impact of our operations on the environment.  These strategies include: (i) developing and maintaining an accurate greenhouse gas emissions inventory, according to new rules issued by the EPA, (ii) improving the efficiency of our various pipelines, natural gas processing facilities and natural gas liquids fractionation facilities, (iii) following developing technologies for emissions control, (iv) following developing technologies to capture carbon dioxide to keep it from reaching the atmosphere, and (v) analyzing options for future energy investment.

We participate in the EPA’s Natural Gas STAR Program to voluntarily reduce methane emissions.  We were honored in 2008 as the “Natural Gas STAR Gathering and Processing Partner of the Year” for our efforts to positively address environmental issues through voluntary implementation of emission-reduction opportunities.  In addition, we continue to focus on maintaining low rates of lost-and-unaccounted-for methane gas through expanded implementation of best practices to limit the release of methane gas during pipeline and facility maintenance and operations.  Our most recent calculation of our annual lost-and-unaccounted-for natural gas, for all of our business operations, is less than 1 percent of total throughput.  We expect to complete our annual estimate for 2009 during the second quarter of 2010 and will post the information on our Web site when available.

EMPLOYEES
 
We do not directly employ any of the persons responsible for managing, operating or providing us with services related to our day-to-day business affairs.  We have a service agreement with ONEOK, ONEOK Partners GP and NBP Services (the Services Agreement) under which our operations and the operations of ONEOK and its affiliates can combine or share certain common services in order to operate more efficiently and cost effectively.  Under the Services Agreement, ONEOK provides us an equivalent type and amount of services that it provides to its other affiliates, including those services required to be provided pursuant to our Partnership Agreement.  ONEOK Partners GP operates our interstate natural gas pipeline

assets according to each pipeline’s operating agreement.  ONEOK Partners GP may purchase services from ONEOK and its affiliates pursuant to the terms of the Services Agreement.  As of January 31, 2010, we utilized some or all of the services of 1,273 people in addition to the other resources provided by ONEOK and its affiliates.
 
INFORMATION AVAILABLE ON OUR WEB SITE
 
We make available on our Web site (www.oneokpartners.com) copies of our Annual Reports, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K, amendments to those reports filed or furnished to the SEC pursuant to Section 13(a) or 15(d) of the Exchange Act and reports of holdings of our securities filed by our officers and directors under Section 16 of the Exchange Act as soon as reasonably practicable after filing such material electronically or otherwise furnishing it to the SEC.  Copies of our Code of Business Conduct, Governance Guidelines, Partnership Agreement and the written charter of our Audit Committee are also available on our Web site, and we will provide copies of these documents upon request.  Our Web site and any contents thereof are not incorporated by reference into this report.

We also make available on our Web site the Interactive Data Files voluntarily submitted as Exhibit 101 to this Annual Report.  In accordance with Rule 402 of Regulation S-T, the Interactive Data Files shall not be deemed to be “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.
 
ITEM 1A.                            RISK FACTORS
 
Our investors should consider the following risks that could affect us and our business.  Although we have tried to discuss key factors, our investors need to be aware that other risks may prove to be important in the future.  New risks may emerge at any time, and we cannot predict such risks or estimate the extent to which they may affect our financial performance.  Investors should carefully consider the following discussion of risks and the other information included or incorporated by reference in this Annual Report, including “Forward-Looking Statements,” which are included in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operation.
 
RISKS INHERENT IN OUR BUSINESS
 
Market volatility and capital availability could adversely affect our business.

The capital and credit markets have been experiencing volatility and disruption.  During the fourth quarter of 2008 and continuing into 2009, the volatility and disruption reached unprecedented levels.  In many cases, the capital markets have exerted downward pressure on equity values and reduced the credit capacity for companies.  Our ability to grow could be constrained if we do not have regular access to the capital and credit markets.  If similar or more severe levels of market disruption and volatility return, our access to capital and credit markets could be disrupted, making growth through acquisitions and development projects difficult or impractical to pursue until such time as markets stabilize.

Our operating results may be materially adversely affected by unfavorable economic and market conditions.

Economic conditions worldwide have from time to time contributed to slowdowns in the oil and gas industry, as well as in the specific segments and markets in which we operate, resulting in reduced demand and increased price competition for our products and services.  Our operating results in one or more geographic regions may also be affected by uncertain or changing economic conditions within that region.  Volatility in commodity prices may have an impact on many of our customers, which, in turn, could have a negative impact on their ability to meet their obligations to us.  If global economic and market conditions (including volatility in commodity markets), or economic conditions in the United States or other key markets, remain uncertain or persist, spread or deteriorate further, we may experience material impacts on our business, financial condition, results of operations, and liquidity.

Uncertainty in the capital markets may increase the cost of debt and equity capital, which may have a material adverse effect on our results of operations and business.
 
In 2008 and continuing into 2009, economic conditions in the United States experienced a downturn, primarily due to the sub-prime lending crisis, volatile energy prices, inflation concerns, slower economic activity, decreased consumer confidence, reduced corporate profits and capital spending, and increased unemployment.  These conditions had an adverse impact on the credit markets.  Although some of these conditions have improved in 2009 and 2010, continued uncertainty about market conditions may have an adverse effect on us resulting from, but not limited to, difficulty in obtaining financing

 
necessary to expand facilities or acquire assets, increased financing cost and increasingly restrictive covenants.

The volatility of natural gas, crude oil and NGL prices could adversely affect our cash flow.

A significant portion of our revenues are derived from the sale of commodities that are received as payment for gathering and processing services, for the transportation and storage of natural gas, and for the sale of purity NGL products in our natural gas liquids business.  Commodity prices have been volatile and are likely to continue to be so in the future.  The prices we receive for our commodities are subject to wide fluctuations in response to a variety of factors beyond our control, including the following:
·  
overall domestic and global economic conditions;
·  
relatively minor changes in the supply of, and demand for, domestic and foreign energy;
·  
market uncertainty;
·  
the availability and cost of transportation capacity;
·  
the level of consumer product demand;
·  
geopolitical conditions impacting supply and demand for natural gas and crude oil;
·  
weather conditions;
·  
domestic and foreign governmental regulations and taxes;
·  
the price and availability of alternative fuels;
·  
speculation in the commodity futures markets;
·  
the price of natural gas, crude oil, NGL and liquefied natural gas imports; and
·  
the effect of worldwide energy conservation measures.

These external factors and the volatile nature of the energy markets make it difficult to reliably estimate future prices of commodities and the impact commodity price fluctuations have on our customers and their need for our services.  As commodity prices decline, we are paid less for our commodities, thereby reducing our cash flow.  In addition, production could also decline.

We may not be able to generate sufficient cash from operations to allow us to pay quarterly distributions at current levels following establishment of cash reserves and payment of fees and expenses, including payments to our affiliates.

The amount of cash we can distribute to our unitholders principally depends upon the cash we generate from our operations.  Because the cash we generate from operations will fluctuate from quarter to quarter, we may not be able to maintain future quarterly distributions at the current level.  Our ability to pay quarterly distributions depends primarily on cash flow, including cash flow from financial reserves and working capital borrowings, and not solely on profitability, which is affected by non-cash items.  As a result, we may pay cash distributions during periods when we record net losses and may be unable to pay cash distributions during periods when we record net income.

We do not fully hedge against commodity price changes.  This could result in decreased revenues, increased costs and lower margins, adversely affecting our results of operations.

Our businesses are exposed to market risk and the impact of market fluctuations in natural gas, NGLs and crude oil prices.  Market risk refers to the risk of loss arising from adverse changes in commodity prices.  Our primary commodity price exposures arise from:
·  
the differentials between NGL and natural gas prices associated with our gas processing agreements;
·  
the differential between the individual NGL products with respect to our NGL transportation, fractionation and exchange agreements;
·  
the locational differences in the  price of natural gas and NGLs with respect to our natural gas and NGL transportation businesses; and
·  
the seasonal differentials in natural gas and NGL prices related to our storage operations.

To manage the risk from market fluctuations in natural gas, NGL and crude oil prices, we use physical forward transactions and commodity derivative instruments such as futures contracts, swaps and options.  However, we do not fully hedge against
commodity price changes, and we therefore retain some exposure to market risk.  Accordingly, any adverse changes to commodity prices could result in decreased revenue and increased costs.
 

Our use of financial instruments to hedge market risk may result in reduced income.

We utilize financial instruments to mitigate our exposure to interest rate and commodity price fluctuations.  Hedging instruments that are used to reduce our exposure to interest rate fluctuations could expose us to risk of financial loss where we have contracted for variable-rate swap instruments to hedge fixed-rate instruments and the variable rate exceeds the fixed rate.  In addition, these hedging arrangements may limit the benefit we would otherwise receive if we have contracted for fixed-rate swap agreements to hedge variable-rate instruments and the variable rate falls below the fixed rate.  Hedging arrangements that are used to reduce our exposure to commodity price fluctuations limit the benefit we would otherwise receive if market prices for natural gas, crude oil and NGLs exceed the stated price in the hedge instrument for these commodities.

Our inability to develop and execute growth projects and acquire new assets could result in reduced cash distributions to our unitholders.

Our primary business objectives are to generate cash flow sufficient to pay quarterly cash distributions to our unitholders and to increase our quarterly cash distributions over time.  Our ability to maintain and grow our distributions to unitholders depends on the growth of our existing businesses and strategic acquisitions.  Accordingly, if we are unable to implement business development opportunities and finance such activities on economically acceptable terms, our future growth will be limited, which could materially adversely impact our results of operations and cash flows and, accordingly, result in reduced cash distributions over time.

Growing our business by constructing new pipelines and plants or making modifications to our existing facilities subjects us to construction risks and risks that adequate natural gas or NGL supplies will not be available upon completion of the facilities.

One of the ways we intend to grow our business is through the construction of new pipelines and new gathering, processing, storage and fractionation facilities and through modifications to our existing pipelines and existing gathering, processing, storage and fractionation facilities.  The construction and modification of pipelines and gathering, processing, storage and fractionation facilities may require significant capital expenditures, which may exceed our estimates, and involves numerous regulatory, environmental, political and legal uncertainties.  Construction projects in our industry may increase demand for labor, materials and rights of way, which may, in turn, impact our costs and schedule.  If we undertake these projects, we may not be able to complete them on schedule or at the budgeted cost.  Additionally, our revenues may not increase immediately upon the expenditure of funds on a particular project.  For instance, if we build a new pipeline, the construction will occur over an extended period of time, and we will not receive any material increases in revenues until after completion of the project.  We may have only limited natural gas or NGL supplies committed to these facilities prior to their construction.  Additionally, we may construct facilities to capture anticipated future growth in production in a region in which anticipated production growth does not materialize.  We may also rely on estimates of proved reserves in our decision to construct new pipelines and facilities, which may prove to be inaccurate because there are numerous uncertainties inherent in estimating quantities of proved reserves.  As a result, new facilities may not be able to attract enough natural gas or NGLs to achieve our expected investment return, which could materially adversely affect our results of operations and financial condition.

Acquisitions that appear to be accretive may nevertheless reduce our cash from operations on a per unit basis.>

Any acquisition involves potential risks that may include, among other things:
·  
mistaken assumptions about volumes, revenues and costs, including potential synergies;
·  
an inability to successfully integrate the businesses we acquire;
·  
decrease in our liquidity as a result of our using a significant portion of our available cash or borrowing capacity to finance the acquisition;
·  
a significant increase in our interest expense or financial leverage if we incur additional debt to finance the acquisition;
·  
the assumption of unknown liabilities for which we are not indemnified or for which our indemnity is inadequate;
·  
an inability to hire, train or retain qualified personnel to manage and operate the acquired business and assets;
·  
limitations on rights to indemnity from the seller;
·  
mistaken assumptions about the overall costs of equity or debt;
·  
the diversion of management’s and employees’ attention from other business concerns;
·  
unforeseen difficulties operating in new product areas or new geographic areas; 
·  
increased regulatory burdens;
·  
customer or key employee losses at an acquired business; and


·  
increased regulatory requirements.

If we consummate any future acquisitions, our capitalization and results of operations may change significantly, and investors will not have the opportunity to evaluate the economic, financial and other relevant information that we will consider in determining the application of our resources to future acquisitions.

We do not own all of the land on which our pipelines and facilities are located, and we lease certain facilities and equipment, which could disrupt our operations.

We do not own all of the land on which certain of our pipelines and facilities are located, and we are, therefore, subject to the risk of increased costs to maintain necessary land use.  We obtain the rights to construct and operate certain of our pipelines and related facilities on land owned by third parties and governmental agencies for a specific period of time.  Our loss of these rights, through our inability to renew right-of-way contracts on acceptable terms or increased costs to renew such rights, could have a material adverse effect on our financial condition, results of operations and cash flows.

Additionally, certain gas processing or other facilities (or parts thereof) used by us are leased from third parties for specific periods.  Our inability to renew equipment leases or otherwise maintain the right to utilize such facilities and equipment on acceptable terms, or the increased costs to maintain such rights, could have a material adverse effect on our results of operations and cash flows.

Our operations are subject to operational hazards and unforeseen interruptions, which could materially adversely affect our business and for which we may not be adequately insured.

Our operations are subject to all of the risks and hazards typically associated with the operation of natural gas and natural gas liquids gathering and transportation pipelines, storage facilities, and processing and fractionation plants.  Operating risks include, but are not limited to, leaks, pipeline ruptures, the breakdown or failure of equipment or processes, and the performance of facilities below expected levels of capacity and efficiency.  Other operational hazards and unforeseen interruptions include adverse weather conditions, accidents, the collision of equipment with our pipeline facilities (for example, this may occur if a third party were to perform excavation or construction work near our facilities) and catastrophic events such as explosions, fires, hurricanes, earthquakes, floods or other similar events beyond our control.  It is also possible that our infrastructure facilities could be direct targets or indirect casualties of an act of terrorism.  A casualty occurrence might result in injury or loss of life, extensive property damage or environmental damage.  Liabilities incurred and interruptions to the operation of our pipeline caused by such an event could reduce revenues generated by us and increase expenses, thereby impairing our ability to meet our obligations.  Insurance proceeds may not be adequate to cover all liabilities or expenses incurred or revenues lost, and we are not fully insured against all risks inherent to our business.

As a result of market conditions, premiums and deductibles for certain insurance policies can increase substantially, and in some instances, certain insurance may become unavailable or available only for reduced amounts of coverage.  Consequently, we may not be able to renew existing insurance policies or procure other desirable insurance on commercially reasonable terms, if at all.  If we were to incur a significant liability for which we were not fully insured, it could have a material adverse effect on our financial position and results of operations.  Further, the proceeds of any such insurance may not be paid in a timely manner and may be insufficient if such an event were to occur.

If the level of drilling and production in the Mid-Continent, Rocky Mountain, Texas and Gulf Coast regions substantially declines near our assets, our volumes and revenues could decline.

Our ability to maintain or expand our businesses depends largely on the level of drilling and production by third parties in the Mid-Continent, Rocky Mountain, Texas and Gulf Coast regions.  Drilling and production are impacted by factors beyond our control, including:
·  
demand and prices for natural gas, NGLs and crude oil;
·  
producers’ finding and development costs of reserves;
·  
producers’ desire and ability to obtain necessary permits in a timely and economic manner;
·  
natural gas field characteristics and production performance;
·  
surface access and infrastructure issues; and
·  
capacity constraints on natural gas, crude oil and natural gas liquids pipelines from the producing areas and our facilities.

In addition, drilling and production may be impacted by environmental regulations governing water discharge.  If the level of drilling and production in any of these regions substantially declines, our volumes and revenue could be materially reduced.


If production from the Western Canada Sedimentary Basin remains flat or declines and demand for natural gas from the Western Canada Sedimentary Basin is greater in market areas other than the Midwestern United States, demand for our interstate transportation services could significantly decrease.

We depend on natural gas supply from the Western Canada Sedimentary Basin for some of our interstate pipelines, primarily our investment in Northern Border Pipeline, that transports Canadian natural gas from the Western Canada Sedimentary Basin to the Midwestern U.S. market area.  If demand for natural gas increases in Canada or other markets not served by our pipelines and/or production remains flat or declines, demand for transportation service on our interstate natural gas pipelines could decrease significantly, which could materially adversely impact our results of operations and cash flows available for distributions.

Pipeline integrity programs and repairs may impose significant costs and liabilities.

Pursuant to a United States Department of Transportation rule, pipeline operators are required to develop integrity management programs for intrastate and interstate natural gas and natural gas liquids pipelines located near high consequence areas, where a leak or rupture could do the most harm.  The rule also requires operators to perform ongoing assessments of pipeline integrity; identify and characterize applicable threats to pipeline segments that could impact a high consequence area; improve data collection, integration and analysis; repair and remediate the pipeline as necessary; and implement preventive and mitigating actions.  The results of these testing programs could cause us to incur significant capital and operating expenditures to make repairs or take remediation, preventive or mitigating actions that are determined to be necessary.

Our business is subject to increased regulatory oversight and potential penalties.

The natural gas industry historically has been heavily regulated; therefore, there is no assurance that a more stringent regulatory approach will not be pursued by the FERC and the United States Congress, especially in light of previous market power abuse by certain companies engaged in interstate commerce.  In response to this issue, the United States Congress, in the Energy Policy Act of 2005 (EPACT), developed requirements intended to ensure that the energy market is not impacted by the exercise of market power or manipulative conduct.  The FERC then adopted the Market Manipulation Rules to implement the authority granted under EPACT.  These rules are intended to prohibit fraud and manipulation and are subject to broad interpretation.  EPACT also gave the FERC increased penalty authority for violations.

Our regulated pipelines’ transportation rates are subject to review and possible adjustment by federal and state regulators.

Our regulated pipelines are subject to extensive regulation by the FERC and state regulatory agencies, which regulate most aspects of our pipeline business, including our transportation rates.  Under the Natural Gas Act, which is applicable to interstate natural gas pipelines, and the Interstate Commerce Act, which is applicable to crude oil and natural gas liquids pipelines, interstate transportation rates must be just and reasonable and not unduly discriminatory.

Action by the FERC or a state regulatory agency could adversely affect our pipeline business’ ability to establish or charge rates that would cover future increases in their costs, or even to continue to collect rates that cover current costs, including a reasonable return.  We cannot assure unitholders that our pipeline systems will be able to recover all of their costs through existing or future rates.

Our regulated pipeline companies have recorded certain assets that may not be recoverable from our customers.

Accounting policies for FERC-regulated companies permit certain assets that result from the regulated ratemaking process to be recorded on our balance sheet that could not be recorded under GAAP for nonregulated entities.  We consider factors such as regulatory changes and the impact of competition to determine the probability of future recovery of these assets.  If we determine future recovery is no longer probable, we would be required to write off the regulatory assets at that time.

Our operations are subject to federal and state laws and regulations relating to the protection of the environment, which may expose us to significant costs and liabilities.

The risk of incurring substantial environmental costs and liabilities is inherent in our business.  Our operations are subject to extensive federal, state and local laws and regulations governing the discharge of materials into, or otherwise relating to the protection of, the environment.  Examples of these laws include:
·  
the Clean Air Act and analogous state laws that impose obligations related to air emissions;


·  
the Clean Water Act and analogous state laws that regulate discharge of waste water from our facilities to state and federal waters;
·  
the federal CERCLA and analogous state laws that regulate the cleanup of hazardous substances that may have been released at properties currently or previously owned or operated by us or locations to which we have sent waste for disposal;
·  
the federal Resource Conservation and Recovery Act and analogous state laws that impose requirements for the handling and discharge of solid and hazardous waste from our facilities; and the EPA has issued a proposed rule on air quality standards, known as RICE NESHAP, scheduled to be adopted in early 2013.
 
Various governmental authorities, including the EPA, have the power to enforce compliance with these laws and regulations and the permits issued under them.  Violators are subject to administrative, civil and criminal penalties, including civil fines, injunctions or both.  Joint and several, strict liability may be incurred without regard to fault under the CERCLA, Resource Conservation and Recovery Act and analogous state laws for the remediation of contaminated areas.

There is an inherent risk of incurring environmental costs and liabilities in our business due to our handling of the products we gather, transport, process and store, air emissions related to our operations, historical industry operations and waste disposal practices, some of which may be material.  Private parties, including the owners of properties through which our pipeline systems pass, may have the right to pursue legal actions to enforce compliance as well as to seek damages for non-compliance with environmental laws and regulations or for personal injury or property damage arising from our operations.  Some sites we operate are located near current or former third-party hydrocarbon storage and processing operations, and there is a risk that contamination has migrated from those sites to ours.  In addition, increasingly strict laws, regulations and enforcement policies could significantly increase our compliance costs and the cost of any remediation that may become necessary, some of which may be material.  Additional information is included under Item 1, Business under “Environmental and Safety Matters” and in Note K of the Notes to Consolidated Financial Statements in this Annual Report.
 
Our insurance may not cover all environmental risks and costs or may not provide sufficient coverage in the event an environmental claim is made against us.  Our business may be materially adversely affected by increased costs due to stricter pollution-control requirements or liabilities resulting from non-compliance with required operating or other regulatory permits.  New environmental regulations might also materially adversely affect our products and activities, and federal and state agencies could impose additional safety requirements, all of which could materially affect our profitability.

In the competition for customers, we may have significant levels of uncontracted or discounted capacity on our natural gas and natural gas liquids pipelines, processing, fractionation and storage assets.

Our natural gas and natural gas liquids pipelines, processing, fractionation and storage assets compete with other pipelines, processing, fractionation and storage facilities for natural gas and NGL supplies delivered to the markets we serve.  As a result of competition, we may have significant levels of uncontracted or discounted capacity on our pipelines, processing, fractionation and in our storage assets, which could have a material adverse impact on our results of operations.

Terrorist attacks aimed at our facilities could adversely affect our business.>

Since the September 11, 2001, terrorist attacks, the United States government has issued warnings that energy assets, specifically the nation’s pipeline infrastructure, may be future targets of terrorist organizations.  These developments may subject our operations to increased risks.  Any future terrorist attack that may target our facilities, those of our customers and, in some cases, those of other pipelines, could have a material adverse effect on our business.

We are exposed to the credit risk of our customers or counterparties, and our credit risk management may not be adequate to protect against such risk.

We are subject to the risk of loss resulting from nonpayment and/or nonperformance by our customers and counterparties.  Our customers or counterparties may experience deterioration of their financial condition as a result of changing market conditions or financial difficulties that could impact their creditworthiness or ability to pay us for our services.  We assess the creditworthiness of our customers and counterparties and obtain collateral as we deem appropriate.  If we fail to adequately assess the creditworthiness of existing or future customers or counterparties, unanticipated deterioration in their creditworthiness and any resulting nonpayment and/or nonperformance could adversely impact our results of operations.  In addition, if any of our customers or counterparties file for bankruptcy protection, this could have a material negative impact on our results of operations.
 

Mergers among our customers and competitors could result in lower volumes being gathered, processed, fractionated, transported or stored on our assets, thereby reducing the amount of cash we generate.

Mergers between our existing customers and our competitors could provide strong economic incentives for the combined entities to utilize their existing gathering, processing, fractionation and/or transportation systems instead of ours in those markets where the systems compete.  As a result, we could lose some or all of the volumes and associated revenues from these customers, and we could experience difficulty in replacing those lost volumes and revenues.  Because most of our operating costs are fixed, a reduction in volumes would result not only in less revenue but also in a decline in cash flow of a similar magnitude, which would reduce our ability to pay cash distributions to our unitholders.

A shortage of skilled labor may make it difficult for us to maintain labor productivity and competitive costs, which could affect operations and cash flows available for distribution to our unitholders.

Our operations require skilled and experienced laborers with proficiency in multiple tasks.  In recent years, a shortage of workers trained in various skills associated with the midstream energy business has caused us to conduct certain operations without full staff, thus hiring outside resources, which decreases our productivity and increases our costs.  This shortage of trained workers is the result of experienced workers reaching retirement age, combined with the difficulty of attracting new laborers to the midstream energy industry.  This shortage of skilled labor could continue over an extended period.  If the shortage of experienced labor continues or worsens, it could have an adverse impact on our labor productivity and costs and our ability to expand production in the event there is an increase in the demand for our products and services, which could adversely affect our operations and cash flows available for distribution to our unitholders.

We may face significant costs to comply with the regulation of greenhouse gas emissions.

Greenhouse gas emissions originate primarily from combustion engine exhaust, heater exhaust and fugitive methane gas emissions.  Various federal and state legislative proposals have been introduced to regulate the emission of greenhouse gases, particularly carbon dioxide and methane, and the United States Supreme Court has ruled that carbon dioxide is a pollutant subject to regulation by the EPA.  In addition, there have been international efforts seeking legally binding reductions in emissions of greenhouse gases.

We believe it is likely that future governmental legislation and/or regulation may require us either to limit greenhouse gas emissions from our operations or to purchase allowances for such emissions that are actually attributable to our NGL customers.  However, we cannot predict precisely what form these future regulations will take, the stringency of the regulations or when they will become effective.  Several bills have been introduced in the United States Congress that would require carbon dioxide emission reductions.  Previously considered proposals have included, among other things, limitations on the amount of greenhouse gases that can be emitted (so called “caps”) together with systems of permitted emissions allowances.  These proposals could require us to reduce emissions, even though the technology is not currently available for efficient reduction, or to purchase allowances for such emissions.  Emissions also could be taxed independently of limits.

In addition to activities on the federal level, state and regional initiatives could also lead to the regulation of greenhouse gas emissions sooner and/or independent of federal regulation.  These regulations could be more stringent than any federal legislation that is adopted.

Future legislation and/or regulation designed to reduce greenhouse gas emissions could make some of our activities uneconomic to maintain or operate.  Further, we may not be able to pass on the higher costs to our customers or recover all costs related to complying with greenhouse gas regulatory requirements.  Our future results of operations, cash flows or financial condition could be adversely affected if such costs are not recovered through regulated rates or otherwise passed on to our customers.

We continue to monitor legislative and regulatory developments in this area.  Although the regulation of greenhouse gas emissions may have a material impact on our operations and rates, we believe it is premature to attempt to quantify the potential costs of the impacts.

We may not be able to pass on the higher costs to our customers or recover all costs related to complying with climate change regulatory requirements, which could have a material adverse effect on our results of operations, cash flows or financial condition.
 

We are subject to physical and financial risks associated with climate change.

There is a growing belief that emissions of greenhouse gases may be linked to global climate change.  Climate change creates physical and financial risk.  Our customers’ energy needs vary with weather conditions, primarily temperature and humidity.  For residential customers, heating and cooling represent their largest energy use.  To the extent weather conditions are affected by climate change, customers’ energy use could increase or decrease depending on the duration and magnitude of any changes.  Increased energy use due to weather changes may require us to invest in more pipelines and other infrastructure to serve increased demand.  A decrease in energy use due to weather changes may affect our financial condition, through decreased revenues.  Extreme weather conditions in general require more system backup, adding to costs, and can contribute to increased system stresses, including service interruptions.  Weather conditions outside of our operating territory could also have an impact on our revenues.  Severe weather impacts our operating territories primarily through hurricanes, thunderstorms, tornadoes and snow or ice storms.  To the extent the frequency of extreme weather events increases, this could increase our cost of providing service.  We may not be able to pass on the higher costs to our customers or recover all costs related to mitigating these physical risks.  To the extent financial markets view climate change and emissions of greenhouse gases as a financial risk, this could negatively affect our ability to access capital markets or cause us to receive less favorable terms and conditions in future financings.  Our business could be affected by the potential for lawsuits against greenhouse gas emitters, based on links drawn between greenhouse gas emissions and climate change.

RISKS INHERENT IN AN INVESTMENT IN US

ONEOK’s sale of substantial amounts of common units could reduce the market price of our common units.

ONEOK and its affiliates own all of the Class B units, 5,900,000 common units and the entire 2 percent general partner interest in us, which together constituted a 45.1 percent ownership interest in us as of December 31, 2009.  As a result of our February 2010 public offering of common units, ONEOK and its subsidiaries own a 42.8 percent aggregate equity interest in us.  The Class B units are eligible to convert into common units on a one-for-one basis at ONEOK’s option.  ONEOK may, from time to time, sell all or a portion of its common units.  Sales of substantial amounts of its common units, or the anticipation of such sales, could lower the market price of our common units and may make it more difficult for us to sell our equity securities in the future at a time and price that we deem appropriate.

ONEOK could withdraw the waiver of its right to receive, on its Class B units, 110 percent of the distributions paid with respect to our common units.

At a special meeting of the holders of our common units, adjourned to May 10, 2007, the proposed amendments to our Partnership Agreement were not approved by the required two-thirds affirmative vote of our outstanding units, excluding the common units and Class B limited partner units held by ONEOK and its affiliates.  As a result, effective April 7, 2007, ONEOK, as the sole holder of our Class B limited partner units, became entitled to receive increased quarterly distributions on its Class B units equal to 110 percent of the distributions paid with respect to our common units.

On June 21, 2007, ONEOK waived its right to receive the increased quarterly distributions on the Class B units for the period of April 7, 2007, through December 31, 2007, and continuing thereafter until ONEOK gives us no less than 90 days advance notice that it has withdrawn its waiver.  ONEOK could withdraw such waiver and begin receiving such increased distributions, effective with respect to any distribution on the Class B units declared or paid on or after 90 days following delivery of the notice.

If our unitholders vote to remove ONEOK or its affiliates as our general partner, quarterly distributions and distributions payable to ONEOK upon liquidation of the Class B units would increase.

Since the proposed amendments to our Partnership Agreement were not approved by the requisite number of our common unitholders, if our common unitholders vote at any time to remove ONEOK or its affiliates as our general partner, quarterly distributions payable on the Class B limited partner units would increase to 123.5 percent of the distributions payable with respect to the common units, and distributions payable upon liquidation of the Class B limited partner units would increase to 123.5 percent of the distributions payable with respect to the common units.

Our unitholders have limited voting rights and are not entitled to elect our general partner’s directors, which could lower the trading price of our common units. In addition, even if unitholders are dissatisfied, they cannot easily remove our general partner.>

Unlike the holders of common stock in a corporation, unitholders have only limited voting rights on matters affecting our business and, therefore, limited ability to influence management’s decisions regarding our business.  Unitholders have no


right to elect our general partner or its directors on an annual or other continuing basis.  The Board of Directors of our general partner, including the independent directors, is chosen by the owners of the general partner and not by the unitholders.

Furthermore, if unitholders are dissatisfied with the performance of our general partner, it may be difficult to remove ONEOK Partners GP or its officers or directors.  ONEOK Partners GP may not be removed except upon the vote of the holders of at least 66-2/3 percent of our outstanding units voting together as a single class (excluding units held by ONEOK Partners GP and its affiliates).  As a result of this provision, the trading price of our common units may be lower than other forms of equity ownership because of the absence or reduction of a takeover premium in the trading price.

We do not operate all of our assets nor do we directly employ any of the persons responsible for providing us with administrative, operating and management services.  This reliance on others to operate our assets and to provide other services could adversely affect our business and operating results.

We rely on ONEOK, ONEOK Partners GP and NBP Services to provide us with administrative, operating and management services.  We have a limited ability to control our operations and the associated costs of such operations.  The success of these operations depends on a number of factors that are outside our control, including the competence and financial resources of the provider.  ONEOK, ONEOK Partners GP and NBP Services may outsource some or all of these services to third parties, and a failure to perform by these third-party providers could lead to delays in or interruptions of these services.  Should ONEOK, ONEOK Partners GP and NBP Services not perform their respective contractual obligations, we may have to contract elsewhere for these services, which may cost more than we are currently paying.  In addition, we may not be able to obtain the same level or kind of service or retain or receive the services in a timely manner, which may impact our ability to perform under our contracts and negatively affect our business and operating results.  Our reliance on ONEOK, ONEOK Partners GP and NBP Services and third-party providers with which they contract, together with our limited ability to control certain costs, could harm our business and results of operations.

Our Partnership Agreement limits our general partner’s fiduciary duties to our unitholders and restricts the remedies available to unitholders for actions taken by our general partner that might otherwise constitute breaches of fiduciary duty.

Our Partnership Agreement contains provisions that reduce the standards to which our general partner would otherwise be held by state fiduciary duty law.  For example, our Partnership Agreement:
·  
permits our general partner to make a number of decisions in its individual capacity, as opposed to in its capacity as our general partner.  This entitles our general partner to consider only the interests and factors that it desires, and it has no duty or obligation to give any consideration to any interest of, or factors affecting, us, our affiliates or any limited partner.  Examples include the exercise of its limited call right, its voting rights with respect to the units it owns, its registration rights and its determination (through its Board of Directors) whether or not to consent to any merger or consolidation of us;
·  
provides that our general partner will not have any liability to us or our unitholders for decisions made in its capacity as general partner so long as it acted in “good faith,” meaning it believed the decision was in or not inconsistent with our best interests;
·  
provides that our general partner is entitled to make other decisions in “good faith” if it reasonably believes that the decision is in, or not inconsistent with, our best interests;
·  
provides generally that affiliated transactions and resolutions of conflicts of interest not approved by the Audit Committee and not involving a vote of unitholders must be on terms no less favorable to us than those generally being provided to or available from unrelated third parties or be “fair and reasonable” to us, as determined by our general partner in “good faith,” and that, in determining whether a transaction or resolution is “fair and reasonable,” our general partner may consider the totality of the relationships between the parties involved, including other transactions that may be particularly advantageous or beneficial to us; and
·  
provides that our general partner and its affiliates, officers and directors will be indemnified by the Partnership for any acts or omissions so long as such person acted in “good faith” and in a manner believed to be in, or not opposed to, the best interest of us and, with respect to any criminal proceeding, had no reasonable cause to believe its conduct was unlawful.

By purchasing a common unit, a common unitholder will be bound by the provisions in our Partnership Agreement, including the provisions discussed above.
 

The Board of Directors of our general partner, our general partner and its affiliates have conflicts of interest and limited fiduciary duties, which may permit them to favor their own interests.

ONEOK owned 100 percent of our general partner interest and a 45.1 percent aggregate equity interest in us as of December 31, 2009.  As a result of our February 2010 public offering of common units, ONEOK and its subsidiaries own a 42.8 percent aggregate equity interest in us.  Our Partnership Agreement limits any fiduciary duties owed by our general partner and ONEOK to those duties that are specifically stated in our Partnership Agreement.  Although ONEOK, through the Board of Directors of our general partner, has an obligation to manage us in a manner that is in, or not inconsistent with, our best interests, the Board of Directors of ONEOK has a fiduciary duty to manage our general partner in a manner beneficial to ONEOK.  Six of the 10 members of the Board of Directors of our general partner are either members of ONEOK’s Board of Directors or executive management of ONEOK.  Three independent members and one management member of the Board of Directors of our general partner are also members of ONEOK’s Board of Directors, with the management member being the only management member of ONEOK’s Board of Directors.  Conflicts of interest may arise between ONEOK and its other affiliates and between us and our unitholders.  In resolving these conflicts, our general partner may determine that the transaction is “fair and reasonable” to us, without the agreement of any other party, including the Audit Committee.  In that regard, our general partner may favor its own interests and the interests of its other affiliates over the interests of our unitholders, as long as it does not take action that conflicts with our Partnership Agreement.  These conflicts include, among others, the following situations:
·  
our general partner, which is owned by ONEOK, and the Board of Directors of our general partner are allowed to take into account the interests of parties other than us in resolving conflicts of interest, which has the effect of limiting their fiduciary duties to our unitholders;
·  
our Partnership Agreement limits the liability and reduces the fiduciary duties of the members of the Board of Directors of our general partner and also restricts the remedies available to our unitholders for actions that, without the limitations, might constitute breaches of fiduciary duty;
·  
the Board of Directors of our general partner determines the amount and timing of our cash reserves, asset purchases and sales, capital expenditures, borrowings and issuances of additional partnership securities, each of which can affect the amount of cash that is distributed to our unitholders;
·  
the Board of Directors of our general partner approves the amount and timing of any capital expenditures and determines whether they are maintenance capital expenditures or growth capital expenditures, which can affect the amount of cash that is distributed to our unitholders;
·  
the Board of Directors of our general partner may cause us to borrow funds in order to permit the payment of cash distributions, even if the purpose or effect of the borrowing is to make incentive distributions;
·  
Our Partnership Agreement provides that costs incurred by the Board of Directors, our general partner and its affiliates in the conduct of our business are reimbursable by us;
·  
our Partnership Agreement does not restrict the members of the Board of Directors of our general partner from causing us to pay the Board of Directors, our general partner or its affiliates for any services rendered to us or entering into additional contractual arrangements with any of these entities on our behalf;
·  
our general partner may exercise its limited right to call and purchase common units, which right may be assigned or transferred to, among others, us or affiliates of the general partner, if the general partner and its affiliates own 80 percent or more of the common units; and
·  
the Board of Directors and Audit and Conflicts Committees of our general partner decide whether to retain separate counsel, accountants or others to perform services for us.

Our general partner and its affiliates may compete directly with us and have no obligation to present business opportunities to us.

ONEOK and its affiliates are not prohibited from owning assets or engaging in businesses that compete directly or indirectly with us.  ONEOK may acquire, construct or dispose of additional midstream or other assets in the future without any obligation to offer us the opportunity to purchase or construct any of those assets.  In addition, under our Partnership Agreement, the doctrine of corporate opportunity, or any analogous doctrine, will not apply to ONEOK and its affiliates.  As a result, neither ONEOK nor any of its affiliates has any obligation to present business opportunities to us.

The control of our general partner may be transferred to a third party without unitholder consent.

Our general partner may transfer all, or any part of, its general partner interest to a third party without the consent of the unitholders.  The members, shareholders or unitholders, as the case may be, of our new general partner may then be in a position to replace all or a portion of the directors of our general partner with their own choices and to possibly control the decisions made by the Board of Directors of our general partner.



Our senior unsecured long-term debt has been assigned an investment-grade rating by Moody’s of “Baa2” (Stable) and by S&P of “BBB” (Stable).  We cannot provide assurance that any of our current ratings will remain in effect for any given period of time or that a rating will not be lowered or withdrawn entirely by a rating agency if, in its judgment, circumstances in the future so warrant.  Specifically, if Moody’s or S&P were to downgrade our long-term rating, particularly below investment grade, our borrowing costs would increase, which would adversely affect our financial results, and our potential pool of investors and funding sources could decrease.  If Moody’s or S&P were to downgrade our long-term ratings below investment grade, we would, under certain circumstances, be required to offer to repurchase certain of our senior notes.  Ratings from credit agencies are not recommendations to buy, sell or hold our securities.  Each rating should be evaluated independently of any other rating.

Increases in interest rates may cause the market price of our common units to decline.

An increase in interest rates may cause a corresponding decline in demand for equity investments in general and in particular for yield-based equity investments such as our common units.  Any such increase in interest rates or reduction in demand for our common units resulting from other more attractive investment opportunities may cause the trading price of our common units to decline.

We do not have the same flexibility as other types of organizations to accumulate cash and equity to protect against illiquidity in the future.

Unlike a corporation, our Partnership Agreement requires us to make quarterly distributions to our unitholders of all available cash reduced by any amounts of reserves for commitments and contingencies, including capital and operating costs and debt- service requirements, all of which are significant.  The value of our units and other limited partner interests may decrease in correlation with decreases in the amount we distribute per unit.  Accordingly, if we experience a liquidity problem in the future, we may not be able to issue more equity or incur debt to recapitalize.

A downgrade of our credit rating may require us to offer to repurchase certain of our senior notes or may impair our ability to access capital.

We could be required to offer to repurchase certain of our senior notes due 2010 and 2011 at par value, plus any accrued and unpaid interest, if Moody’s or S&P rate those senior notes below investment grade (Baa3 for Moody’s and BBB- for S&P) and the investment-grade rating is not reinstated within a period of 40 days; however, once the $250 million 2010 senior notes have been retired, whether by maturity, redemption or otherwise, we will no longer have any obligation to offer to repurchase the $225 million 2011 senior notes in the event our credit rating falls below investment grade.  Further, the indenture governing our senior notes due 2010 and 2011 includes an event of default upon acceleration of other indebtedness of $25 million or more, and the indenture governing our senior notes due 2012, 2016, 2019, 2036 and 2037 includes an event of default upon the acceleration of other indebtedness of $100 million or more that would be triggered by such an offer to repurchase.  Such an event of default would entitle the trustee or the holders of 25 percent in aggregate principal amount of the outstanding senior notes due 2010, 2011, 2012, 2016, 2019, 2036 and 2037 to declare those notes immediately due and payable in full.  We may not have sufficient cash on hand to repurchase and repay any accelerated senior notes, which may cause us to borrow money under our credit facilities or seek alternative financing sources to finance the repayments and repurchases.  We could also face difficulties accessing capital or our borrowing costs could increase, impacting our ability to obtain financing for acquisitions or capital expenditures, to refinance indebtedness and to fulfill our debt obligations.

Our indebtedness could impair our financial condition and our ability to fulfill our other obligations.

As of December 31, 2009, we had total indebtedness of approximately $3.6 billion.  Our indebtedness could have significant consequences.  For example, it could:
·  
make it more difficult for us to satisfy our obligations with respect to our notes and our other indebtedness, which could in turn result in an event of default on such other indebtedness or our notes;
·  
impair our ability to obtain additional financing in the future for working capital, capital expenditures, acquisitions or general business purposes;
·  
diminish our ability to withstand a downturn in our business or the economy;
·  
require us to dedicate a substantial portion of our cash flow from operations to debt-service payments, reducing the availability of cash for working capital, capital expenditures, acquisitions, distributions to partners and general partnership purposes;


·  
limit our flexibility in planning for, or reacting to, changes in our business and the industry in which we operate; and
·  
place us at a competitive disadvantage compared with our competitors that have proportionately less debt.

We are not prohibited under the indentures governing our senior notes from incurring additional indebtedness, but our debt agreements do subject us to certain operational limitations summarized in the next paragraph.  Our incurrence of significant additional indebtedness would exacerbate the negative consequences mentioned above and could adversely affect our ability to repay our notes and other indebtedness.

Our debt agreements contain provisions that restrict our ability to finance future operations or capital needs or to expand or pursue our business activities.  For example, certain of these agreements contain provisions that, among other things, limit our ability to make loans or investments, make material changes to the nature of our business, merge, consolidate or engage in asset sales, or grant liens or make negative pledges.  Certain agreements also require us to maintain certain financial ratios, which limit the amount of additional indebtedness we can incur.  Please refer to the “Liquidity and Capital Resources” section of Management’s Discussion and Analysis of Financial Condition and Results of Operation.  These restrictions could result in higher costs of borrowing and impair our ability to generate additional cash.   Future financing agreements we may enter into may contain similar or more restrictive covenants.

If we are unable to meet our debt-service obligations, we could be forced to restructure or refinance our indebtedness, seek additional equity capital or sell assets.  We may be unable to obtain financing or sell assets on satisfactory terms, or at all.

We and the Intermediate Partnership have a holding company structure in which our subsidiaries conduct our operations and own our operating assets.

We and the Intermediate Partnership are holding companies, and our subsidiaries conduct all of our operations and own all of our operating assets.  Neither we nor the Intermediate Partnership have significant assets other than the partnership interests and the equity in our subsidiaries and other investments.  As a result, our ability to make quarterly distributions and required payments on our indebtedness depends on the performance of our subsidiaries and their ability to distribute funds to us.  The ability of our subsidiaries to make distributions to us may be restricted by, among other things, credit facilities, applicable state partnership laws, and other laws and regulations, including FERC policies.  If we are unable to obtain the funds necessary to make quarterly distributions or required payments on our indebtedness, we may be required to adopt one or more alternatives, such as refinancing the indebtedness or seeking alternative financing sources to fund the quarterly distributions and indebtedness payments.

We may issue additional common units without unitholder approval, which would dilute unitholders’ ownership interests.

Our general partner, without the approval of our unitholders, may cause us to issue an unlimited number of additional units.  The issuance by us of additional common units or other equity securities of equal or senior rank will have the following effects:
·  
our unitholders’ proportionate ownership interest in us will decrease;
·  
the distribution paid on each unit may decrease;
·  
the relative voting strength of each previously outstanding unit may be diminished; and
·  
the market price of the common units may decline.

Notwithstanding the foregoing, the issuance of equity securities ranking senior to the common units requires approval of a majority of the outstanding common units.

Our general partner has a limited call right that may require unitholders to sell their common units at an undesirable time or price.

If at any time our general partner and its affiliates own 80 percent or more of the common units, our general partner will have the right, but not the obligation, which it may assign to any of its affiliates or to us, to acquire all, but not less than all, of the common units held by unaffiliated persons at a price not less than their then-current market price.  As a result, unitholders may be required to sell their common units at an undesirable time or price and may not receive any return on their investment.  Unitholders may also incur a tax liability upon the sale of their units.  Our general partner is not obligated to obtain a fairness opinion regarding the value of the common units to be repurchased by it upon exercise of the limited call right.  There is no restriction in our Partnership Agreement that prevents our general partner from issuing additional common units and exercising its call right.  If our general partner exercised its limited call right, the effect would be to take us private


and, if the units were subsequently deregistered, we would no longer be subject to the reporting requirements of the Exchange Act.

Our Partnership Agreement restricts the voting rights of unitholders owning 20 percent or more of our common units.

Our Partnership Agreement restricts unitholders’ voting rights by providing that any units held by a person or entity that owns 20 percent or more of our common units then outstanding, other than our general partner and its affiliates, cannot vote on any matter.  Our Partnership Agreement also contains provisions limiting the ability of unitholders to call meetings or to acquire information about our operations, as well as other provisions limiting the unitholders’ ability to influence the manner or direction of management.

Unitholders may not have limited liability if a court finds that unitholder action constitutes control of our business.  Unitholders may also have liability to repay distributions.

As a limited partner in a limited partnership organized under Delaware law, unitholders could be held liable for our obligations to the same extent as a general partner if they participate in the “control” of our business.  Our general partner generally has unlimited liability for our obligations, such as our debts and environmental liabilities, except for our contractual obligations that are expressly made without recourse to our general partner.  In addition, the Delaware Revised Uniform Limited Partnership Act provides that, under some circumstances, a unitholder may be liable to us for the amount of a distribution for a period of three years from the date of the distribution.  The limitations on the liability of holders of limited partner interests for the obligations of a limited partnership have not been clearly established in some of the states in which we do business.

TAX RISKS

Our tax treatment depends on our status as a partnership for federal income tax purposes.  Additionally, other than our corporate subsidiaries, we are subject to entity-level taxation in certain states.  If the IRS were to treat us as a corporation or if we were to become subject to a material amount of entity-level taxation for state tax purposes, then our cash available for distribution to our common unitholders would be substantially reduced.

The anticipated after-tax economic benefit of an investment in our common units depends largely on our being treated as a partnership for federal income tax purposes.  We have not requested, and do not plan to request, a ruling from the IRS on this matter.

If we were treated as a corporation for federal income tax purposes, we would pay federal income tax on our taxable income at the corporate tax rate, which is currently a maximum of 35 percent, and we likely would pay state taxes as well.  Distributions to our unitholders would generally be taxed again as corporate distributions, and no income, gains, losses or deductions would flow through to our unitholders.  Because a tax would be imposed upon us as a corporation, the cash available for distributions to our common unitholders would be substantially reduced.  Therefore, treatment of us as a corporation would result in a material reduction in the after-tax return to our common unitholders, likely causing a substantial reduction in the value of our common units.

Because of widespread state budget deficits and other reasons, several states are evaluating ways to subject partnerships to entity-level taxation through the imposition of state income, franchise or other forms of taxation.  For example, beginning in 2008, we were required to pay the revised Texas franchise tax at a maximum effective rate of 0.7 percent of our gross revenue that is apportioned to Texas.  Imposition of such tax on us by Texas, or any other state, reduces the cash available for distribution to our common unitholders.

The tax treatment of our structure could be subject to potential legislative, judicial or administrative changes and differing interpretations, possibly on a retroactive basis.

The federal income tax treatment of us and common unitholders depends in some instances on determinations of fact and interpretations of complex provisions of federal income tax law.  The federal income tax rules are constantly under review by persons involved in the legislative process, the IRS and the United States Treasury Department (Treasury), frequently resulting in revised interpretations of established concepts, statutory changes, revisions to Treasury regulations and other modifications and interpretations. The IRS pays close attention to the proper application of tax laws to partnerships.  The present federal income tax treatment of us and/or an investment in our common units may be modified by administrative, legislative or judicial interpretation at any time.  For example, in response to certain recent developments, members of the


United States Congress are considering substantive changes to the definition of qualifying income under the Internal Revenue Code Section 7704(d) and the treatment of certain types of income earned from profits interests in the partnerships.  Any modification to the federal income tax laws and interpretations thereof may or may not be applied retroactively and could make it more difficult or impossible for us to meet the exception to be treated for federal income tax purposes as a partnership that is not taxable as a corporation (referred to as the “Qualifying Income Exception”), affect or cause us to change our business activities, affect the tax consequences for common unitholders of an investment in us, change the character or treatment of portions of our income and adversely affect an investment in our common units.  We are unable to predict whether any of these or other changes or proposals will ultimately be enacted.  Any such changes could negatively impact the value of an investment in our common units and the amount of cash available for distribution to our unitholders.

An IRS contest of the federal income tax positions we take may adversely impact the market for our common units, and the costs of any contest will be borne by our unitholders and general partner.

We have not requested any ruling from the IRS with respect to our treatment as a partnership for federal income tax purposes or any other matter affecting us.  The IRS may adopt positions that differ from the federal income tax positions we take.  It may be necessary to resort to administrative or court proceedings to sustain some or all of the positions we take.  A court may not agree with some or all of the positions we take.  Any contest with the IRS may adversely impact the taxable income reported to our unitholders and the income taxes they are required to pay.  As a result, any such contest with the IRS may materially and adversely impact the market for our common units and the price at which they trade.  In addition, the costs of any such contest with the IRS will result in a reduction in cash available to pay distributions to our unitholders and our general partner and thus will be borne indirectly by our unitholders and our general partner.

A unitholder will be required to pay taxes on the unitholder’s share of our taxable income even if the unitholder does not receive any cash distributions from us.

A unitholder will be required to pay federal income taxes and, in some cases, state and local income taxes on the unitholder’s share of our taxable income, whether or not the unitholder receives cash distributions from us.  A unitholder may not receive cash distributions from us equal to the unitholder’s share of our taxable income or even equal to the actual tax liability that results from the unitholder’s share of our taxable income.

Unitholders may have negative tax consequences if we default on our debt or sell assets.

If we default on any of our debt, the lenders will have the right to sue us for non-payment. Such an action could cause negative tax consequences for unitholders through the realization of taxable income by unitholders without a corresponding cash distribution.  Likewise, if we were to dispose of assets and realize a taxable gain while there is substantial debt outstanding and proceeds of the sale were applied to the debt, unitholders could have increased taxable income without a corresponding cash distribution.

The taxable gain or loss on the disposition of our common units could be different than expected.

A unitholder will recognize a gain or loss on the sale of common units equal to the difference between the amount realized and the unitholder’s tax basis in those common units.  A unitholder’s amount realized will be measured by the sum of the cash and the fair market value of other property received plus the unitholder’s share of our nonrecourse liabilities.  Because the amount realized includes a unitholder’s share of our nonrecourse liabilities, the gain recognized on the sale of common units could result in a tax liability in excess of any cash received from the sale.  Prior distributions to a unitholder in excess of the total net taxable income allocated to a unitholder for a common unit, which decreased the tax basis in that common unit, will, in effect, become taxable income to a unitholder if the common unit is sold at a price greater than the tax basis in that common unit, even if the price received is less than the original cost.  A substantial portion of the amount realized, whether or not representing a gain, may be ordinary income to a unitholder.  Should the IRS successfully contest some positions we take, unitholders could recognize more gain on the sale of units than would be the case under those positions, without the benefit of decreased income in prior years.

Tax-exempt entities and non-U.S. persons face unique tax issues from owning common units that may result in adverse tax consequences to them.

Investment in common units by tax-exempt entities, such as individual retirement accounts and non-U.S. persons, raises issues unique to them.  For example, virtually all of our income allocated to unitholders who are organizations exempt from federal income tax, including individual retirement accounts and other retirement plans, may be taxable to them as “unrelated business taxable income.”  Distributions to non-U.S. persons may be subject to U.S. withholding taxes.  Non-U.S. persons will be required to file U.S. federal income tax returns and pay tax on their share of our taxable income.

 
We will treat each purchaser of units as having the same tax benefits without regard to the units purchased.  The IRS may challenge this treatment, which could adversely affect the value of the common units.

Because we cannot match transferors and transferees of common units, we have adopted depreciation and amortization positions that may not conform to all aspects of applicable Treasury regulations.  A successful IRS challenge to those positions could adversely affect the amount of tax benefits available to unitholders.  It also could affect the timing of these tax benefits or the amount of gain from a unitholder’s sale of common units and could have a negative impact on the value of our common units or result in audit adjustments to a unitholder’s tax returns.

We may be required to change the allocation of items of income, gain, loss and deduction among our unitholders.

We prorate our items of income, gain, loss and deduction between transferors and transferees of our common units each month based upon the ownership of our units as of the close of business on the last day of the preceding month, instead of on the basis of the date a particular unit is transferred.  The use of this proration method may not be permitted under existing Treasury regulations.  If the IRS were to challenge this method or new Treasury regulations were issued, we may be required to change the allocation of items of income, gain, loss and deduction among our unitholders.

Unitholders will be subject to state and local taxes and return-filing requirements as a result of investing in our common units.

In addition to federal income taxes, unitholders will be subject to other taxes, such as state and local income taxes, unincorporated business taxes and estate, inheritance or intangible taxes that are imposed by the various jurisdictions in which we do business or own property.  Unitholders will be required to file state and local income tax returns and pay state and local income taxes in some or all of these various jurisdictions and may be subject to penalties for failure to comply with those requirements.  We may own property or conduct business in other states or foreign countries in the future.

We determine our depreciation and cost-recovery allowances using federal income tax methods and may use methods that result in the largest deductions being taken in the early years after assets are placed in service.  Some of the states in which we do business or own property may not conform to these federal depreciation methods.  A successful challenge to these methods could adversely affect the amount of taxable income or loss being allocated to our unitholders for state tax purposes.  It also could affect the amount of gain from a unitholder’s sale of common units and could have a negative impact on the value of the common units or result in audit adjustments to the unitholder’s state tax returns.

It is each unitholder’s responsibility to file all United States federal, state and local tax returns and foreign tax returns, as applicable.  Our legal counsel has not rendered an opinion on the state and local tax consequences of an investment in our common units.

Some of the states in which we do business or own property may require us to, or we may elect to, withhold a percentage of income from amounts to be distributed to a unitholder who is not a resident of the state. Withholding, the amount of which may be greater or less than a particular unitholder’s income tax liability to the state, generally does not relieve the non-resident unitholder from the obligation to file an income tax return. Amounts withheld may be treated as if distributed to unitholders for purposes of determining the amounts distributed by us.

The sale or exchange of 50 percent or more of the total interest in our capital and profits within a 12-month period will result in the termination of our Partnership for federal income tax purposes.

We will be considered to have terminated for federal income tax purposes if there is a sale or exchange of 50 percent or more of the total interests in our capital and profits within a 12-month period.  Our termination would, among other things, result in the closing of our taxable year for all unitholders, which may result in us filing two tax returns for one fiscal year.

Our termination could also result in a deferral of depreciation deductions allowable in computing taxable income.  Our termination currently would not affect our classification as a partnership for federal income tax purposes, instead, we would be treated as a new partnership, we must make new tax elections, and we could be subject to penalties if we were unable to determine that the termination had occurred.
 

We have adopted certain valuation methodologies that may result in a shift of income, gain, loss and deduction between the general partner and the unitholders.  The IRS may challenge this treatment, which could adversely affect the value of our common units.

When we issue additional units or engage in certain other transactions, we determine the fair market value of our assets and allocate any unrealized gain or loss attributable to our assets to the capital accounts of our unitholders and our general partner.  Our methodology may be viewed as understating the value of our assets.  In that case, there may be a shift of income, gain, loss and deduction between certain unitholders and the general partner, which may be unfavorable to such unitholders.  Moreover, under our current valuation methods, subsequent purchasers of common units may have a greater portion of their Internal Revenue Code Section 743(b) adjustment allocated to our tangible assets and a lesser portion allocated to our intangible assets.  The IRS may challenge our valuation methods, or our allocation of the Section 743(b) adjustment attributable to our tangible and intangible assets, and allocations of income, gain, loss and deduction between the general partner and certain of our unitholders.

A successful IRS challenge to these methods or allocations could adversely affect the amount of taxable income or loss being allocated to our unitholders.  It also could affect the amount of gain from our unitholders’ sale of common units and could have a negative impact on the value of the common units or result in audit adjustments to our unitholders’ tax returns without the benefit of additional deductions.

A unitholder whose units are loaned to a “short seller” to cover a short sale of units may be considered as having disposed of those units. If so, the unitholder would no longer be treated for tax purposes as a partner with respect to those units during the period of the loan and may recognize gain or loss from the disposition.

Because a unitholder whose units are loaned to a “short seller” to cover a short sale of units may be considered as having disposed of the loaned units, the unitholder may no longer be treated for tax purposes as a partner with respect to those units during the period of the loan to the short seller and the unitholder may recognize gain or loss from such disposition.  Moreover, during the period of the loan to the short seller, any of our income, gain, loss or deduction with respect to those units may not be reportable by the unitholder, and any cash distributions received by the unitholder as to those units could be fully taxable as ordinary income.  Unitholders desiring to assure their status as partners and avoid the risk of gain recognition from a loan to a short seller are urged to modify any applicable brokerage account agreements to prohibit their brokers from borrowing their units.
 
ITEM 1B.                            UNRESOLVED STAFF COMMENTS
 
Not applicable.

ITEM 2.                            PROPERTIES

Natural Gas Gathering and Processing

·  
approximately 10,200 miles and 4,800 miles of natural gas gathering pipelines in the Mid-Continent and Rocky Mountain regions, respectively;
·  
nine active natural gas processing plants, with approximately 645 MMcf/d of processing capacity in the Mid-Continent region, and four active natural gas processing plants, with approximately 124 MMcf/d of processing capacity in the Rocky Mountain region; and
·  
approximately 24 MBbl/d of natural gas liquids fractionation capacity at various natural gas processing plants in the Mid-Continent and Rocky Mountain regions.

 
Natural Gas Pipelines
 
·  
approximately 1,500 miles of FERC-regulated interstate natural gas pipelines with approximately 3.1 Bcf/d of peak transportation capacity;


·  
approximately 5,600 miles of intrastate natural gas gathering and state-regulated intrastate transmission pipelines with peak transportation capacity of approximately 3.4 Bcf/d; and
·  
approximately 51.6 Bcf of total active working natural gas storage capacity.

Our storage includes five underground natural gas storage facilities in Oklahoma, three underground natural gas storage facilities in Kansas and three underground natural gas storage facilities in Texas.  One of our natural gas storage facilities outside of Hutchinson, Kansas, has been idle since 2001, following natural gas explosions and eruptions of natural gas geysers.  We began injecting brine into the facility in the first quarter of 2007 in order to ensure the long-term integrity of the idled facility.  We expect to complete the injection process by the end of 2011.  Monitoring of the facility and review of the data for the geoengineering studies are ongoing, in compliance with a KDHE order while we evaluate the alternatives for the facility.  Following the testing of the gathered data, we expect that the facility will be returned to storage service, although most likely for a product other than natural gas.  The return to service will require KDHE approval.  It is possible, however, that testing could reveal that it is not safe to return the facility to service or that the KDHE will not grant the required permits to resume service.


Natural Gas Liquids

·  
approximately 2,400 miles of natural gas liquids gathering pipelines with peak capacity of approximately 502 MBbl/d;
·  
approximately 160 miles of natural gas liquids distribution pipelines with peak transportation capacity of approximately 66 MBbl/d;
·  
approximately 1,800 miles of FERC-regulated natural gas liquids gathering pipelines with peak capacity of approximately 298 MBbl/d;
·  
approximately 3,500 miles of FERC-regulated natural gas liquids and refined petroleum products distribution pipelines with peak transportation capacity of 691 MBbl/d;
·  
two natural gas liquids fractionators with operating capacity of approximately 260 MBbl/d;
·  
80 percent ownership interest in one natural gas liquids fractionator with our proportional share of operating capacity of approximately 128 MBbl/d;
·  
interest in one natural gas liquids fractionator with our proportional share of operating capacity of approximately 11 MBbl/d;
·  
one isomerization unit with operating capacity of 9 MBbl/d;
·  
six NGL storage facilities in Oklahoma, Kansas and Texas with operating storage capacity of approximately 23.2 MMBbl;
·  
eight NGL product terminals in Missouri, Nebraska, Iowa and Illinois; and
·  
above- and below-ground storage facilities associated with our FERC-regulated natural gas liquids pipeline operations in Iowa, Illinois, Nebraska and Kansas with 978 MBbl operating capacity.

In addition, we lease four NGL storage facilities in Oklahoma, Kansas and Texas with operating storage capacity of approximately 3.2 MMBbl.  We also own and lease assets through an affiliate at the Bushton facility in Kansas, which includes 150 MBbl/d of fractionation capacity.

During 2008, we added new natural gas liquids fractionation facilities at the Bushton location, in conjunction with other changes that were made to the NGL fractionation capabilities of the existing plant.  We currently have 150 MBbl/d of active NGL fractionation capacity as a result of combining the previously existing fractionation equipment with the new fractionation facilities.  We resumed fractionating NGLs at the facilities in the second half of 2008.

·  
our non-FERC-regulated natural gas liquids pipelines were approximately 51 percent and 73 percent;
·  
our FERC-regulated natural gas liquids gathering pipelines were approximately 58 percent and 55 percent;
·  
our FERC-regulated natural gas liquids distribution pipelines were approximately 62 percent and 49 percent;
·  
our average contracted natural gas storage volumes were approximately 58 percent and 74 percent of storage capacity; and
·  
our natural gas liquids fractionators were approximately 88 percent and 87 percent.

 
We calculate utilization rates using a weighted-average approach, adjusting for the in-service dates of assets placed in service during 2009 and 2008.  The utilization rates of our non-FERC-regulated NGL pipelines and FERC-regulated NGL gathering pipelines reflect the Arbuckle Pipeline placed in service in August 2009.

Our fractionation utilization rate reflects approximate proportional capacity associated with ownership interests noted above and for our Bushton facility, which was placed in service during the second half of 2008.
 
ITEM 3.                      LEGAL PROCEEDINGS
 
Will Price, et al. v. Gas Pipelines, et al. (f/k/a Quinque Operating Company, et al. v. Gas Pipelines, et al.), 26th Judicial District, District Court of Stevens County, Kansas, Civil Department, Case No. 99C30 (“Price I”).>  Plaintiffs brought suit on May 28, 1999, against ONEOK, Inc. and its division, Oklahoma Natural Gas, our subsidiaries Mid-Continent Market Center, L.L.C., ONEOK Field Services Company, L.L.C., ONEOK WesTex Transmission, L.L.C. and ONEOK Hydrocarbon, L.P. (formerly Koch Hydrocarbon, LP, successor to Koch Hydrocarbon Company), as well as approximately 225 other defendants.  Plaintiffs sought class certification for their claims for monetary damages, alleging that the defendants had underpaid gas producers and royalty owners throughout the United States by intentionally understating both the volume and the heating content of purchased gas.  After extensive briefing and a hearing, the Court refused to certify the class sought by plaintiffs. Plaintiffs then filed an amended petition limiting the purported class to gas producers and royalty owners in Kansas, Colorado and Wyoming and limiting the claim to undermeasurement of volumes.  Oral argument on the plaintiffs’ motion to certify this suit as a class action was conducted on April 1, 2005.  On September 18, 2009, the Court denied the plaintiffs' motions for class certification, which, in effect, limits the named plaintiffs to pursuing individual claims against only those defendants who purchased or measured their gas.  On October 2, 2009, the plaintiffs filed a motion for reconsideration of the Court’s denial of class certification, and the defendants filed their brief on January 18, 2010, in opposition to plaintiffs’ motion.  Oral argument on the motion was held on February 10, 2010, and the Court took the matter under advisement.

Will Price and Stixon Petroleum, et al. v. Gas Pipelines, et al., 26th Judicial District, District Court of Stevens County, Kansas, Civil Department, Case No. 03C232 (“Price II”).>  This action was filed by the plaintiffs on May 12, 2003, after the Court denied class status in Price I. Plaintiffs are seeking monetary damages based upon a claim that 21 groups of defendants, including ONEOK, Inc. and its division, Oklahoma Natural Gas, our subsidiaries Mid-Continent Market Center, L.L.C., ONEOK Field Services Company, L.L.C., ONEOK WesTex Transmission, L.L.C. and ONEOK Hydrocarbon, L.P. (formerly Koch Hydrocarbon, LP, successor to Koch Hydrocarbon Company), intentionally underpaid gas producers and royalty owners by understating the heating content of purchased gas in Kansas, Colorado and Wyoming.  Price II has been consolidated with Price I for the determination of whether either or both cases may properly be certified as class actions. Oral argument on the plaintiffs’ motion to certify this suit as a class action was conducted on April 1, 2005.  On September 18, 2009, the Court denied the plaintiffs’ motions for class certification, which, in effect, limits the named plaintiffs to pursuing individual claims against only those defendants who purchased or measured their gas.  On October 2, 2009, the plaintiffs filed a motion for reconsideration of the Court’s denial of class certification, and the defendants filed their brief on January 18, 2010, in opposition to plaintiffs’ motion.  Oral argument on the motion was held on February 10, 2010, and the Court took the matter under advisement.

Mont Belvieu Emissions, Texas Commission on Environmental Quality >- The Texas Commission on Environmental Quality (TCEQ) issued a Notice of Enforcement on March 13, 2009, alleging that air emissions at our Mont Belvieu fractionator exceeded the emissions allowed under our air permit and that we failed to isolate the source of the emissions in a timely manner.  We reached agreement with the TCEQ staff on the terms of a settlement under which we would pay $160,000 and confirm that we have adopted a plan to timely address similar emissions issues in the future.  Half of our payment obligation would be satisfied by contributions to local environmental projects in Texas.  This settlement was incorporated into an Agreed Order, which was approved by the TCEQ on January 27, 2010.  Payment of all amounts due under the order has been made, and this matter is concluded.

ITEM 4.                      SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

Not applicable.
 

 
ITEM 5.                      MARKET FOR REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES
 
MARKET INFORMATION AND HOLDERS
 
Our equity consists of a 2 percent general partner interest and a 98 percent limited partner interest.  Our limited partner interests are represented by our common units, which are listed on the NYSE under the trading symbol “OKS,” and our Class B limited partner units.  The following table sets forth the high and low closing prices of our common units for the periods indicated:

   
Year Ended
   
Year Ended
 
   
December 31, 2009
   
December 31, 2008
 
   
High
   
Low
   
High
   
Low
 
First Quarter
  $ 52.75     $ 34.21     $ 63.89     $ 54.58  
Second Quarter
  $ 49.75     $ 40.06     $ 64.01     $ 55.90  
Third Quarter
  $ 53.30     $ 45.80     $ 60.05     $ 50.32  
Fourth Quarter
  $ 63.00     $ 52.20     $ 55.88     $ 39.25  

At February 12, 2010, there were 761 holders of record of our 65,162,777 outstanding common units.  ONEOK and its affiliates own all of the Class B units, 5,900,000 common units and the entire 2 percent general partner interest in us, which together constituted a 42.8 percent ownership interest in us upon completion of our February 2010 public offering of common units.

CASH DISTRIBUTIONS

The following table sets forth the quarterly cash distribution declared and paid on each of our common and Class B units during the periods indicated:

   
Years Ended December 31,
 
   
2009
   
2008
   
2007
 
First Quarter
  $ 1.08     $ 1.025     $ 0.98  
Second Quarter
  $ 1.08     $ 1.040     $ 0.99  
Third Quarter
  $ 1.08     $ 1.060     $ 1.00  
Fourth Quarter
  $ 1.09     $ 1.080     $ 1.01  

In January 2010, our general partner declared a cash distribution of $1.10 per unit ($4.40 per unit on an annualized basis) for the fourth quarter of 2009, which was paid on February 12, 2010, to unitholders of record as of January 29, 2010.

CASH DISTRIBUTION POLICY

Under our Partnership Agreement, we make distributions to our partners with respect to each calendar quarter in an amount equal to 100 percent of available cash within 45 days following the end of each quarter.  Available cash generally consists of all cash receipts less adjustments for cash disbursements and net changes to reserves.  Available cash will generally be distributed to our general partner and limited partners according to their partnership percentages of 2 percent and 98 percent, respectively.  Our general partner’s percentage interest in quarterly distributions is increased after certain specified target levels are met during the quarter.  Under the incentive distribution provisions, our general partner receives:
·  
15 percent of amounts distributed in excess of $0.605 per unit;
·  
25 percent of amounts distributed in excess of $0.715 per unit; and
·  
50 percent of amounts distributed in excess of $0.935 per unit.

We paid cash distributions to our general and limited partners of $500.3 million for 2009 and $453.0 million for 2008, which included an incentive distribution to our general partner of $84.7 million for 2009 and $69.9 million for 2008.  Additional information about our cash distributions is included in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operation under “Liquidity and Capital Resources,” and Item 13, Certain Relationships and Related Transactions, and Director Independence.
 

PERFORMANCE GRAPH

The following performance graph compares the performance of our common units with the S&P 500 Index and the Alerian MLP Index during the period beginning on December 31, 2004, and ending on December 31, 2009.  The graph assumes a $100 investment in our common units and in each of the indices at the beginning of the period and a reinvestment of distributions/dividends paid on such investments throughout the period.
 
 
   
Cumulative Total Return
 
   
Years Ended December 31,
 
   
2004
   
2005
   
2006
   
2007
   
2008
   
2009
 
                                     
ONEOK Partners, L.P.
  $ 100.00     $ 93.15     $ 150.70     $ 154.69     $ 123.94     $ 184.68  
S&P 500 Index
  $ 100.00     $ 104.91     $ 121.48     $ 128.15     $ 80.74     $ 102.11  
Alerian MLP Index (a)
  $ 100.00     $ 106.32     $ 133.77     $ 150.75     $ 95.24     $ 168.06  
(a) - The Alerian MLP Index measures the composite performance of the 50 most prominent energy master limited partnerships.
 
 
 
ITEM 6.                      SELECTED FINANCIAL DATA
 
The following table sets forth our selected financial data for the periods indicated:
 
   
Years Ended December 31,
 
   
2009
   
2008
   
2007
   
2006
   
2005 (b)
 
   
(In thousands of dollars, except per unit data)
 
Revenues
  $ 6,474,491     $ 7,720,206     $ 5,831,558     $ 4,738,248     $ 703,944  
Income from continuing operations
  $ 434,704     $ 626,057     $ 408,163     $ 447,578     $ 192,181  
Net income
  $ 434,704     $ 626,057     $ 408,163     $ 447,578     $ 192,687  
Net income attributable to ONEOK Partners, L.P.
  $ 434,356     $ 625,616     $ 407,747     $ 445,186     $ 147,013  
Total assets
  $ 7,953,259     $ 7,254,272     $ 6,112,065     $ 4,921,717     $ 2,527,766  
Long-term debt, including current maturities
  $ 3,084,017     $ 2,601,440     $ 2,617,326     $ 2,031,529     $ 1,123,971  
Per unit income from continuing operations
  $ 3.60     $ 6.01     $ 4.21     $ 5.01     $ 2.92  
Per unit net income
  $ 3.60     $ 6.01     $ 4.21     $ 5.01     $ 2.93  
Distributions per common unit (a)
  $ 4.33     $ 4.205     $ 3.98     $ 3.60     $ 3.20  
(a) - Class B unitholders received the same distribution as common unitholders.
                         
(b) - Financial data for 2005 is not directly comparable with other periods presented due to the significance of the April 2006 ONEOK transactions when we completed the acquisition of and consolidated certain companies comprising ONEOK’s former gathering and processing, natural gas liquids, and pipelines and storage segments.
 
 
ITEM 7.                      MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATION
 
The following discussion and analysis should be read in conjunction with our audited consolidated financial statements and the Notes to Consolidated Financial Statements in this Annual Report.

EXECUTIVE SUMMARY

The following discussion highlights some of our achievements and significant issues affecting us during the past year.  Please refer to the “Capital Projects,” “Financial Results and Operating Information,” and “Liquidity and Capital Resources,” sections of Management’s Discussion and Analysis of Financial Condition and Results of Operation, our Consolidated Financial Statements and Notes to Consolidated Financial Statements for additional information.


We intend to pursue growth in our natural gas businesses through well connections and contract renegotiations and through new plant construction, expansions and extensions of our existing systems and plants.  For our natural gas liquids business, we intend to continue to focus on adding new supply connections and expanding our existing assets.  We plan to spend approximately $362 million on capital expenditures in 2010, of which approximately $278 million will be for growth projects.  We may also pursue strategic acquisitions related to gathering, processing, fractionating, storing, transporting or marketing natural gas and NGLs.


Equity Issuances> - In July 2009, we completed an underwritten public offering of 5,486,690 common units, including the partial exercise by the underwriters of their over-allotment option, at $45.81 per common unit, generating net proceeds of approximately $241.6 million.  In conjunction with the offering, ONEOK Partners GP contributed an aggregate of $5.1 million in order to maintain its 2 percent general partner interest in us.  We used the proceeds from the sale of common units


and the general partner contributions to repay borrowings under our Partnership Credit Agreement and for general partnership purposes.  As a result of these transactions, ONEOK and its subsidiaries held an aggregate 45.1 percent interest in us at December 31, 2009.

In February 2010, we completed an underwritten public offering of 5,500,900 common units, including the partial exercise by the underwriters of their over-allotment option, at $60.75 per common unit, generating net proceeds of approximately $322.6 million.  In conjunction with the offering, ONEOK Partners GP contributed $6.8 million in order to maintain its 2 percent general partner interest in us.  We used the proceeds from the sale of common units and the general partner contribution to repay borrowings under our Partnership Credit Agreement and for general partnership purposes.  As a result of these transactions, ONEOK and its subsidiaries own a 42.8 percent aggregate equity interest in us.



·  
Guardian Pipeline’s natural gas pipeline expansion and extension project;
·  
Williston Basin natural gas processing plant expansion;
·  
Arbuckle natural gas liquids pipeline;
·  
D-J Basin lateral natural gas liquids pipeline; and
·  
Piceance lateral natural gas liquids pipeline.
 
·  
a decrease in net margin due primarily to:
-  
lower realized commodity prices in our Natural Gas Gathering and Processing segment;
-  
narrower NGL product price differentials in our Natural Gas Liquids segment; and
-  
a decrease related to prior-year operational measurement gains, primarily at NGL storage caverns; offset partially by
-  
higher NGL volumes gathered, fractionated and transported, primarily associated with the completion of the Overland Pass Pipeline and related expansion projects, and the Arbuckle Pipeline, as well as new NGL supply connections in our Natural Gas Liquids segment;
-  
higher natural gas transportation margins from the Guardian Pipeline expansion and extension that was completed in February 2009 and an increase in volumes contracted on Midwestern Gas Transmission in our Natural Gas Pipelines segment; and
-  
higher volumes processed and sold in our Natural Gas Gathering and Processing segment;
·  
an increase in operating costs resulting from the operation of the Overland Pass Pipeline and the Arbuckle Pipeline and increased costs at our fractionation facilities, which includes the expanded Bushton Plant fractionator;
·  
an increase in depreciation expense associated with our completed capital projects;
·  
an increase in interest expense due primarily to our March 2009 debt issuance and a decrease in capitalized interest due to the completion of our capital projects; and
·  
an increase in the number of common units outstanding.
 
SIGNIFICANT ACQUISITIONS AND DIVESTITURES

Acquisition of NGL Pipeline> - In October 2007, we completed the acquisition of an interstate natural gas liquids and refined petroleum products pipeline system and related assets from a subsidiary of Kinder Morgan Energy Partners, L.P. (Kinder Morgan) for approximately $300 million, before working capital adjustments.  The FERC-regulated system extends from Bushton and Conway, Kansas, to Chicago, Illinois, and transports, stores and delivers a full range of NGL products and refined petroleum products.  The transaction also included a 50 percent ownership interest in Heartland.  ConocoPhillips owns the other 50 percent of Heartland and is the managing partner of Heartland, which consists primarily of a refined petroleum products terminal and pipelines with access to two other refined petroleum products terminals.  Our investment in Heartland is accounted for under the equity method of accounting.  Financing for this transaction came from a portion of the proceeds of our September 2007 issuance of $600 million 6.85 percent Senior Notes due 2037.  The working capital


settlement was finalized in April 2008, with no material adjustments.  These assets are included in our Natural Gas Liquids segment.

CAPITAL PROJECTS

Overland Pass Pipeline >- In November 2008, Overland Pass Pipeline Company completed construction of a 760-mile natural gas liquids pipeline from Opal, Wyoming, to the Mid-Continent natural gas liquids market center in Conway, Kansas.  The Overland Pass Pipeline is designed to transport approximately 110 MBbl/d of unfractionated NGLs and can be increased to approximately 255 MBbl/d with additional pump facilities.  Overland Pass Pipeline Company is a joint venture between us and a subsidiary of The Williams Companies, Inc. (Williams).  We own 99 percent of the joint venture and operate the pipeline.  On or before November 17, 2010, Williams has the option to increase its ownership in Overland Pass Pipeline Company, which includes the Piceance Lateral and D-J Basin Lateral pipeline projects, up to a total of 50 percent, with the purchase price being determined in accordance with the joint venture’s operating agreement.  If Williams exercises its option to increase its ownership to the full 50 percent, Williams would have the option to become operator.  If Williams does not elect to increase its ownership to at least 10 percent, we will have the right, but not the obligation, to purchase Williams’ entire ownership interest, with the purchase price being determined in accordance with the joint venture’s operating agreement.  The project costs for the Overland Pass Pipeline, the Piceance Lateral Pipeline and the DJ Basin Lateral Pipeline in total are approximately $780 million, excluding AFUDC.

As part of a long-term agreement, Williams dedicated its NGL production from two of its natural gas processing plants in Wyoming, capable of delivering over 70 MBbl/d to the Overland Pass Pipeline.  We provide downstream fractionation, storage and transportation services to Williams.  We have also reached agreements with certain producers for supply commitments to the D-J Basin and Piceance Lateral pipelines.  We have NGL production dedicated from new and existing plants that we expect to provide throughput of more than 200 MBbl/d to the Overland Pass Pipeline over the next three to five years.

We also invested approximately $239 million, excluding AFUDC, to expand our existing fractionation and storage capabilities and to increase the capacity of our natural gas liquids distribution pipelines.  Part of this expansion included adding new fractionation facilities at our Bushton, Kansas, location, which increased the total fractionation capacity at the Bushton facility to 150 MBbl/d from 80 MBbl/d.  The addition of the new facilities and the upgrade to the existing fractionator were completed in October 2008.  Additionally, portions of our natural gas liquids distribution pipeline upgrades were completed in the second and third quarters of 2008.  Overland Pass Pipeline Company and the associated expansions are included in our Natural Gas Liquids segment.




The demand for surface easements increased dramatically in Texas and Oklahoma over the last two years because of increased oil and natural gas exploration and production activities, as well as pipeline construction.  As previously reported, project costs have been more expensive than originally estimated due to delays associated with right-of-way acquisition, increased materials costs and difficult construction conditions associated with several weeks of heavy spring rains in 2009, resulting in greatly reduced construction productivity.  We also experienced increased costs due to a number of scope


changes, arising primarily from additional supply development opportunities.  We estimate project costs will be approximately $490 million, excluding AFUDC, for the current capacity.


 
IMPACT OF NEW ACCOUNTING STANDARDS
 
Information about the impact of new accounting standards is included in Note A of the Notes to Consolidated Financial Statements in this Annual Report:
·  
references to accounting standards literature under the FASB Accounting Standards Codification;
·  
presentation and disclosure requirements for noncontrolling interests;
·  
enhanced disclosures about derivative instruments and hedging activities;
·  
ASU 2010-06, “Improving Disclosures about Fair Value Measurements;”
·  
net income per unit calculations for master limited partnerships with incentive distributions rights; and
·  
disclosure of subsequent events review.
The above accounting standards did not or are not expected to have a material impact on our consolidated financial statements, results of operations or cash flows.
 
CRITICAL ACCOUNTING POLICIES AND ESTIMATES
 
The preparation of our consolidated financial statements and related disclosures in accordance with GAAP requires us to make estimates and assumptions with respect to values or conditions that cannot be known with certainty that affect the reported amount of assets and liabilities, and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements.  These estimates and assumptions also affect the reported amounts of revenue and expenses during the reporting period.  Although we believe these estimates and assumptions are reasonable, actual results could differ from our estimates.

The following is a summary of our most critical accounting estimates, which are defined as those policies most important to the portrayal of our financial condition and results of operations and requiring our management’s most difficult, subjective or complex judgment, particularly because of the need to make estimates concerning the impact of inherently uncertain matters.  We have discussed the development and selection of our critical accounting policies and estimates with the Audit Committee of our Board of Directors.

Impairment of Goodwill, Long-Lived Assets and Intangible Assets> - We assess our goodwill for impairment at least annually.  There were no impairment charges resulting from our July 1, 2009, 2008 or 2007 impairment tests.

As part of our impairment test, an initial assessment is made by comparing the fair value of a reporting unit with its book value, including goodwill.  To estimate the fair value of our reporting units, we use two generally accepted valuation approaches, an income approach and a market approach.  Under the income approach, we use anticipated cash flows over a period of years plus a terminal value and discount these amounts to their present value using appropriate rates of return that are consistent with a market participant’s perspective.  Under the market approach, we apply multiples to forecasted cash flows.  The multiples used are consistent with a market participant’s perspective of historical asset transactions  The forecasted cash flows are consistent with a market participant’s perspective of average forecasted cash flows for a reporting unit over a period of years.
 

Our estimates of fair value significantly exceeded the book value of our reporting units in our July 1, 2009, impairment test.  Even if the estimated fair values used in our July 1, 2009, impairment test were reduced by 10 percent, no impairment charges would have resulted.  The following table sets forth our goodwill, by segment, at both December 31, 2009 and 2008:

       
   
(Thousands of dollars)
 
Natural Gas Gathering and Processing
  $ 90,037  
Natural Gas Pipelines
    131,115  
Natural Gas Liquids
    175,566  
Total goodwill
  $ 396,718  

See Notes A and F of the Notes to Consolidated Financial Statements in this Annual Report for additional discussion of goodwill and related disclosures.

We assess our long-lived assets, including intangible assets with a finite useful life, for impairment whenever events or changes in circumstances indicate that its carrying amount may exceed its fair value.  In step one of the impairment test, the carrying amount of a long-lived asset is not recoverable if it exceeds the sum of the undiscounted future cash flows expected to result from the use and eventual disposition of the asset.  If the carrying amount is not recoverable, we record an impairment loss equal to the difference between the carrying value and the fair value of the long-lived asset.  This type of analysis requires us to make assumptions and estimates regarding industry economic factors and the profitability of future business strategies.  We determined that there were no asset impairments in 2009, 2008 or 2007.

We had $272.2 million and $279.8 million of intangible assets recorded on our Consolidated Balance Sheets as of December 31, 2009 and 2008, respectively, all of which was recorded in our Natural Gas Liquids segment.

For the investments we account for under the equity method, the impairment test considers whether the fair value of the equity investment as a whole, not the underlying net assets, has declined and whether that decline is other than temporary.  Therefore, we periodically re-evaluate the amount at which we carry our equity method investments to determine whether current events or circumstances warrant adjustments to our carrying value.  We determined that there were no impairments to our investments in unconsolidated affiliates in 2009, 2008 or 2007.

Our impairment tests require the use of assumptions and estimates.  If actual results are not consistent with our assumptions and estimates or our assumptions and estimates change due to new information, we may be exposed to an impairment charge.


See Notes C and D of the Notes to Consolidated Financial Statements in this Annual Report for additional discussion of fair value measurements and derivatives and risk management activities.

Contingencies> - Our accounting for contingencies covers a variety of business activities, including contingencies for legal and environmental exposures.  We accrue these contingencies when our assessments indicate that it is probable that a liability has been incurred or an asset will not be recovered, and an amount can be reasonably estimated.  We base our estimates on currently available facts and our estimates of the ultimate outcome or resolution.  Accruals for estimated losses from environmental remediation obligations generally are recognized no later than completion of the remediation feasibility study.  Recoveries of environmental remediation costs from other parties are recorded as assets when their receipt is deemed probable.  Our expenditures for environmental evaluation, mitigation, remediation and compliance to date have not been significant in relation to our financial position or results of operations, and our expenditures related to environmental matters had no material effects upon earnings or cash flows during 2009, 2008 and 2007.  Actual results may differ from our estimates resulting in an impact, positive or negative, on earnings.  See Note K of the Notes to Consolidated Financial Statements in this Annual Report for additional discussion of contingencies.
 

FINANCIAL RESULTS AND OPERATING INFORMATION

Consolidated Operations

Selected Financial Results> - The following table sets forth certain selected financial results for the periods indicated:
 
               
Variances
   
Variances
 
   
Years Ended December 31,
   
2009 vs. 2008
   
2008 vs. 2007
 
Financial Results
 
2009
   
2008
   
2007
   
Increase (Decrease)
   
Increase (Decrease)
 
   
(Millions of dollars)
 
Revenues
  $ 6,474.5     $ 7,720.2     $ 5,831.6     $ (1,245.7 )     (16 %)   $ 1,888.6       32 %
Cost of sales and fuel
    5,355.2       6,579.5       4,935.7       (1,224.3 )     (19 %)     1,643.8       33 %
Net margin
    1,119.3       1,140.7       895.9       (21.4 )     (2 %)     244.8       27 %
Operating costs
    411.3       371.8       337.4       39.5       11 %     34.4       10 %
Depreciation and amortization
    164.1       124.8       113.7       39.3       31 %     11.1       10 %
Gain on sale of assets
    2.7       0.7       2.0       2.0       *       (1.3 )     (65 %)
Operating income
  $ 546.6     $ 644.8     $ 446.8     $ (98.2 )     (15 %)   $ 198.0       44 %
                                                         
Equity earnings from investments
  $ 72.7     $ 101.4     $ 89.9     $ (28.7 )     (28 %)   $ 11.5       13 %
Allowance for equity funds used
     during construction
  $ 26.9     $ 50.9     $ 12.5     $ (24.0 )     (47 %)   $ 38.4       *  
Interest expense
  $ (206.0 )   $ (151.1 )   $ (138.9 )   $ 54.9       36 %   $ 12.2       9 %
Capital expenditures
  $ 615.7     $ 1,253.9     $ 709.9     $ (638.2 )     (51 %)   $ 544.0       77 %
* Percentage change is greater than 100 percent.
                                                 
 
2009 vs. 2008 - Net margin decreased due primarily to the following:
·  
lower realized commodity prices in our Natural Gas Gathering and Processing segment;
·  
narrower NGL product price differentials in our Natural Gas Liquids segment; and
·  
a decrease related to prior-year operational measurement gains, primarily at NGL storage caverns; offset partially by
·  
higher NGL volumes gathered, fractionated and transported, primarily associated with the completion of the Overland Pass Pipeline and related expansion projects, and the Arbuckle Pipeline, as well as new NGL supply connections in our Natural Gas Liquids segment;
·  
higher natural gas transportation margins from the Guardian Pipeline expansion and extension that was completed in February 2009 and an increase in volumes contracted on Midwestern Gas Transmission in our Natural Gas Pipelines segment; and
·  
higher volumes processed and sold in our Natural Gas Gathering and Processing segment.

Operating costs increased due primarily to higher employee-related costs, incremental costs associated with the operation of the Overland Pass Pipeline, the Arbuckle Pipeline and the expanded Bushton Plant fractionator, outside services expenses and general taxes related to our completed capital projects.

Depreciation and amortization increased due primarily to our completed capital projects, which are discussed beginning on page 37.

Equity earnings from investments decreased due primarily to lower subscription volumes and rates on Northern Border Pipeline.  Additionally, there was a gain on the sale of Bison Pipeline LLC by Northern Border Pipeline in 2008.  Equity earnings from investments also decreased due to lower volumes gathered in our Natural Gas Gathering and Processing segment’s equity investments, whose assets are primarily located in the Powder River Basin of Wyoming.

Allowance for equity funds used during construction decreased due primarily to the completion of the Arbuckle Pipeline, the Overland Pass Pipeline and related expansion projects, and the Guardian Pipeline expansion and extension.
 
Interest expense increased due primarily to our March 2009 debt issuance and a decrease in capitalized interest due to the completion of our capital projects.

Capital expenditures decreased due primarily to the completion of our capital projects.
 

2008 vs. 2007 - Net margin increased due primarily to the following:
·  
wider NGL product price differentials, increased NGL gathering and fractionation volumes and certain operational measurement gains, primarily at NGL storage caverns, in our Natural Gas Liquids segment;
·  
higher realized commodity prices, improved contractual terms and higher volumes sold and processed in our Natural Gas Gathering and Processing segment;
·  
incremental net margin in our Natural Gas Liquids segment from the assets acquired from Kinder Morgan in October 2007; and
·  
increased transportation and storage margins as a result of the impact of higher natural gas prices on retained fuel and new and renegotiated storage contracts in our Natural Gas Pipelines segment.

Operating costs increased due primarily to incremental operating expenses associated with the assets acquired from Kinder Morgan, increased outside services primarily associated with scheduled maintenance activities at our Medford and Mont Belvieu fractionators, and chemical costs.  Operating costs also increased due to costs associated with the startup of our newly expanded Bushton fractionator and Overland Pass Pipeline.

Depreciation and amortization increased due primarily to our completed capital projects and the assets acquired from Kinder Morgan.

Equity earnings from investments increased due primarily to higher gathering revenues in our various investments as well as a gain on the sale of Bison Pipeline LLC by Northern Border Pipeline in 2008, offset partially by reduced throughput on Northern Border Pipeline.  We own a 50 percent equity interest in Northern Border Pipeline.

Allowance for equity funds used during construction and capital expenditures increased due to increased spending for our capital projects, which are discussed beginning on page 37.

Interest expense increased due primarily to increased borrowings to fund our capital projects.

More information regarding our results of operations is provided in the following discussion of operating results for each of our segments.

Natural Gas Gathering and Processing

Selected Financial Results >- The following table sets forth certain selected financial results for our Natural Gas Gathering and Processing segment for the periods indicated:

                     
Variances
   
Variances
 
   
Years Ended December 31,
   
2009 vs. 2008
   
2008 vs. 2007
 
Financial Results
 
2009
   
2008
   
2007
   
Increase (Decrease)
   
Increase (Decrease)
 
 
(Millions of dollars)
 
NGL and condensate sales
  $ 578.5     $ 851.7     $ 673.8     $ (273.2 )     (32 %)   $ 177.9       26 %
Residue gas sales
    363.0       750.4       636.8       (387.4 )     (52 %)     113.6       18 %
Gathering, compression, dehydration
  and processing fees and other revenue
    153.1       154.1       148.1       (1.0 )     (1 %)     6.0       4 %
Cost of sales and fuel
    734.6       1,321.0       1,092.2       (586.4 )     (44 %)     228.8       21 %
Net margin
    360.0       435.2       366.5       (75.2 )     (17 %)     68.7       19 %
Operating costs
    135.1       138.2       135.4       (3.1 )     (2 %)     2.8       2 %
Depreciation and amortization
    59.3       49.9       45.1       9.4       19 %     4.8       11 %
Gain on sale of assets
    2.8       -       1.8       2.8       100 %     (1.8 )     (100 %)
Operating income
  $ 168.4     $ 247.1     $ 187.8     $ (78.7 )     (32 %)   $ 59.3       32 %
                                                         
Equity earnings from investments
  $ 28.4     $ 32.8     $ 26.4     $ (4.4 )     (13 %)   $ 6.4       24 %
Capital expenditures
  $ 105.5     $ 146.2     $ 83.8     $ (40.7 )     (28 %)   $ 62.4       74 %
 
2009 vs. 2008 - Net margin decreased primarily as a result of the following:
·  
a decrease of $106.0 million due to lower realized commodity prices; offset partially by
·  
an increase of $22.3 million due to higher volumes processed and sold;
·  
an increase of $6.5 million from selling our Lehman Brothers bankruptcy claims related to receivables owed to us; and
·  
an increase of $1.8 million due to improved contractual terms.

 
Operating costs decreased primarily as a result of lower costs for chemicals and maintenance activities.  These decreases were offset partially by higher employee-related costs.

Depreciation and amortization increased primarily as a result of our completed capital projects.

Gain on sale of assets increased due to the sale of excess compression equipment.

Equity earnings from investments decreased primarily as a result of decreased earnings from lower volumes gathered in our equity investments, which are primarily located in the Powder River Basin of Wyoming.

Capital expenditures decreased due primarily to the completion of a pipeline expansion project into the Woodford Shale in September of 2008 in Oklahoma and the Williston Basin gas processing plant expansion.
 
2008 vs. 2007 - Net margin increased due primarily to the following: 
·  
an increase of $58.4 million due to higher realized commodity prices;
·  
an increase of $11.9 million due to improved contractual terms;
·  
an increase of $7.0 million due to higher volumes sold and processed; offset partially by
·  
a decrease of $8.6 million due to a one-time favorable contract settlement that occurred in the fourth quarter of 2007.

Operating costs increased due primarily to increased costs for chemicals and maintenance parts, and a favorable legal settlement received in June 2007, which reduced legal costs for 2007.  These increases were offset partially by decreased equipment lease costs in 2008 associated with the Bushton Plant.

Depreciation and amortization increased primarily as a result of our completed capital projects.
 
Equity earnings from investments increased due primarily to higher gathering revenues in our Fort Union Gas Gathering investment as a result of capacity expansions.

Capital expenditures increased due to our increased growth activities, primarily in the Rocky Mountain region.

Selected Operating Information> - The following tables set forth selected operating information for our Natural Gas Gathering and Processing segment for the periods indicated:

   
Years Ended December 31,
 
Operating Information
 
2009
   
2008
   
2007
 
Natural gas gathered (BBtu/d) (a)
    1,123       1,164       1,171  
Natural gas processed (BBtu/d) (a)
    658       641       621  
NGL sales (MBbl/d) (a)
    43       39       38  
Residue gas sales (BBtu/d) (a)
    291       279       281  
Realized composite NGL net sales price ($/gallon) (b)
  $ 0.90     $ 1.26     $ 0.98  
Realized condensate net sales price ($/Bbl) (b)
  $ 78.35     $ 88.35     $ 67.11  
Realized residue gas net sales price ($/MMBtu) (b)
  $ 3.55     $ 7.53     $ 5.17  
Realized gross processing spread ($/MMBtu) (a)
  $ 6.63     $ 7.47     $ 5.21  
(a) - Includes volumes for consolidated entities only.
                       
(b) - Includes equity volumes only.
                       
 
 
                   
   
Years Ended December 31,
 
Operating Information (a)
 
2009
   
2008
   
2007
 
Percent of proceeds
                 
  Wellhead purchases (MMBtu/d)
    53,581       67,718       83,993  
  NGL sales (Bbl/d)
    5,472       4,578       5,959  
  Residue gas sales (MMBtu/d)
    41,768       39,724       34,010  
  Condensate sales (Bbl/d)
    1,735       1,693       719  
  Percentage of total net margin
    50%       62%       56%  
Fee-based
                       
  Wellhead volumes (MMBtu/d)
    1,122,861       1,164,273       1,170,502  
  Average rate ($/MMBtu)
  $ 0.30     $ 0.26     $ 0.25  
  Percentage of total net margin
    35%