Xcel Energy (XEL)

3.01*

Restated Articles of Incorporation of Xcel Energy, as amended on May 21, 2008. (Exhibit 3.01 to Form 10-Q for the quarter ended June 30, 2008 (file no. 001-03034)).

3.02*

Restated By-Laws of Xcel Energy (Exhibit 3.01 to Form 8-K dated Aug. 12, 2008 (file no. 001-03034)).

4.01*

Supplemental Indenture dated as of Aug. 1, 2008 between Public Service Company of Colorado and U.S. Bank Trust National Association, as successor Trustee, creating $300,000,000 principal amount of 5.80% First Mortgage Bonds, Series No. 18 due 2018 and $300,000,000 principal amount of 6.50% First Mortgage Bonds, Series No. 19 due 2038 (Exhibit 4.01 of Form 8-K of Public Service Company of Colorado dated Aug. 6, 2008 (file no. 001-03280)).

4.02*

Supplemental Trust Indenture dated as of Sept. 1, 2008 between Northern States Power Company (Wisconsin) and U.S. Bank National Association, as successor Trustee, creating $200,000,000 principal amount of 6.375% First Mortgage Bonds, Series due Sept. 1, 2038 (Exhibit 4.01 of Form 8-K of Northern States Power Company, a Wisconsin corporation, dated Sept. 3, 2008 (file no. 001-03140)).

31.01

Principal Executive Officer’s and Principal Financial Officer’s certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.01

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.01

Statement pursuant to Private Securities Litigation Reform Act of 1995.

3.01

Restated Articles of Incorporation of Xcel Energy, as amended on May 21, 2008.

3.02*

Restated By-Laws of Xcel Energy (Exhibit 3.01 to Form 10-Q (file no. 001-03034) filed Aug. 4. 2004.)

31.01

Principal Executive Officer’s and Principal Financial Officer’s certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.01

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.01

Statement pursuant to Private Securities Litigation Reform Act of 1995.

4.01

Supplemental Indenture, dated Aug. 1, 2007, between Public Service Company of Colorado (a Colorado corporation) and U.S. Bank Trust National Association, as successor Trustee. (Exhibit 4.01 to PSCo Form 8-K (file no. 001-3280) dated Aug. 14, 2007).

10.01

Letter dated Sept. 19, 2007, from Xcel Energy Inc. to the U.S. Department of Justice (“DOJ”) submitting its offer to settle the COLI tax dispute and Letter dated Sept. 21, 2007 from the DOJ to Xcel Energy Inc. accepting the settlement offer.

31.01

Principal Executive Officer’s and Principal Financial Officer’s certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.01

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.01

Statement pursuant to Private Securities Litigation Reform Act of 1995.

4.01

Supplemental Indenture, dated June 1, 2007, between Northern States Power Co. (a Minnesota corporation) and BNY Midwest Trust Company, as successor Trustee. (Exhibit 4.01 to NSP-Minnesota Form 8-K (file no. 001-31387) dated June 19, 2007).

10.01

Second Amendment to the Xcel Energy Senior Executive Severance and Change-in-Control Policy (Exhibit 10.01 to Xcel Energy’s Form 8-K (file no 1-3034) and incorporated herein by reference).

10.02

Amendment Four to Employment Agreement Between Xcel Energy Inc. and Paul Bonavia (Exhibit 10.02 to Xcel Energy’s Form 8-K (file no 1-3034) and incorporated herein by reference).

31.01

Principal Executive Officer’s and Principal Financial Officer’s certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.01

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.01

Statement pursuant to Private Securities Litigation Reform Act of 1995.

4.01

Supplemental Indenture, dated Aug. 1, 2007, between Public Service Company of Colorado (a Colorado corporation) and U.S. Bank Trust National Association, as successor Trustee. (Exhibit 4.01 to PSCo Form 8-K (file no. 001-3280) dated Aug. 14, 2007).

10.01

Letter dated Sept. 19, 2007, from Xcel Energy Inc. to the U.S. Department of Justice (“DOJ”) submitting its offer to settle the COLI tax dispute and Letter dated Sept. 21, 2007 from the DOJ to Xcel Energy Inc. accepting the settlement offer.

31.01

Principal Executive Officer’s and Principal Financial Officer’s certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.01

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.01

Statement pursuant to Private Securities Litigation Reform Act of 1995.

4.01

Supplemental Indenture, dated June 1, 2007, between Northern States Power Co. (a Minnesota corporation) and BNY Midwest Trust Company, as successor Trustee. (Exhibit 4.01 to NSP-Minnesota Form 8-K (file no. 001-31387) dated June 19, 2007).

10.01

Second Amendment to the Xcel Energy Senior Executive Severance and Change-in-Control Policy (Exhibit 10.01 to Xcel Energy’s Form 8-K (file no 1-3034) and incorporated herein by reference).

10.02

Amendment Four to Employment Agreement Between Xcel Energy Inc. and Paul Bonavia (Exhibit 10.02 to Xcel Energy’s Form 8-K (file no 1-3034) and incorporated herein by reference).

31.01

Principal Executive Officer’s and Principal Financial Officer’s certifications pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

32.01

Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.01

Statement pursuant to Private Securities Litigation Reform Act of 1995.