United States Steel Corporation Contracts & Agreements

Agreement and Plan of Merger, dated as of December 18, 2023, by and among the Company, Parent, Merger Sub and NSC (solely as provided in Section 9.13 therein) (Filed With SEC on December 18, 2023)

Form of Offer Letter to Jessica T. Graziano, dated June 6, 2022 (Filed With SEC on July 29, 2022)

Sixth Amended and Restated Credit Agreement, dated as of May 27, 2022, among United States Steel Corporation, the Subsidiary Guarantors from time to time party thereto, the... (Filed With SEC on June 3, 2022)

Third Amended and Restated Borrower Security Agreement, dated as of May 27, 2022, between United States Steel Corporation and JPMorgan Chase Bank, N.A., as Collateral Agent (Filed With SEC on June 3, 2022)

Third Amended and Restated Subsidiary Security Agreement, dated as of May 27, 2022, between the Subsidiary Guarantors and JPMorgan Chase Bank, N.A., as Collateral Agent (Filed With SEC on June 3, 2022)

Second Amended and Restated Borrower Canadian Security Agreement, dated as of May 27, 2022, between United States Steel Corporation and JPMorgan Chase Bank, N.A., as Collateral... (Filed With SEC on June 3, 2022)

Special Transition Agreement and Release by and between Christine S. Breves and United States Steel Corporation, dated February 15, 2022 (Filed With SEC on April 29, 2022)

Form of United States Steel Corporation 2016 Omnibus Incentive Plan Performance Share Award Grant Agreement (ROCE Grant) (Filed With SEC on April 29, 2022)

Form of United States Steel Corporation 2016 Omnibus Incentive Plan Performance Share Award Grant Agreement (TSR Grant) (Filed With SEC on April 29, 2022)

Commitment Agreement by and among United States Steel Corporation, Banner Life Insurance Company, William Penn Life Insurance Company of New York and State Street Global Advisors... (Filed With SEC on February 11, 2022)

United States Steel Corporation Executive Severance Plan, effective December 14, 2021 (Filed With SEC on December 20, 2021)

Membership Interest Purchase Agreement, dated June 7, 2021, by and between United States Steel Corporation and Percy Acquisition LLC (Filed With SEC on June 8, 2021)

Administrative Procedures for the Executive Management Annual Incentive Compensation Plan under the United States Steel Corporation 2016 Omnibus Incentive Compensation Plan,... (Filed With SEC on April 30, 2021)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan, as Amended and Restated Effective April 27, 2021 (Filed With SEC on April 30, 2021)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Share Award Grant Agreement (2021 Grants) (Filed With SEC on April 30, 2021)

Amendment No. 2 to Fifth Amended and Restated Credit Agreement, dated March 26, 2021 (Filed With SEC on April 30, 2021)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Cash Award Grant Agreement (2021 Grants) (Filed With SEC on April 30, 2021)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Restricted Stock Unit Grant Agreement (2021 Grants) (Filed With SEC on April 30, 2021)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Retention Restricted Stock Unit Grant Agreement (2021 Grants) (Filed With SEC on April 30, 2021)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan TSR Performance Share Award Grant Agreement (2021 Grants) (Filed With SEC on April 30, 2021)

Loan Agreement dated as of November 1, 2020, between Indiana Finance Authority and United States Steel Corporation, relating to $88,810,000 Indiana Finance Authority Environmental... (Filed With SEC on March 17, 2021)

Separation Agreement and Release, by and between Douglas R. Matthews and United States Steel Corporation, as of December 24, 2020 (Filed With SEC on February 12, 2021)

First Amendment to the Credit Agreement, dated as of November 17, 2020, by and among United States Steel Corporation and KFW IPEX-BANK GMBH, in its capacity as Lender, Facility... (Filed With SEC on February 12, 2021)

SECOND SUPPLEMENTAL AGREEMENT, dated 30 November 2020, between U. S. STEEL KOICE, S.R.O., FERROENERGY S.R.O. and COMMERZBANK FINANCE & COVERED BOND S.A., as Facility Agent,... (Filed With SEC on February 12, 2021)

Letter Agreement, dated July 30, 2020, between Scott D. Buckiso and United States Steel Corporation (Filed With SEC on February 12, 2021)

Underwriting Agreement, dated February 8, 2021, by and between United States Steel Corporation and Credit Suisse Securities (USA) LLC, as representative of the several... (Filed With SEC on February 11, 2021)

Tenth Supplemental Indenture, dated as of February 11, 2021, by and between United States Steel Corporation and The Bank of New York Mellon, as trustee (Filed With SEC on February 11, 2021)

Underwriting Agreement for the Shares, dated February 2, 2021 (Filed With SEC on February 5, 2021)

Call Option Purchase Agreement, to be entered into by and among U. S. Steel Holdco LLC, Big River Steel Holdings LLC, Pinnacle Mountain Holding Company III, LLC and Consolidated... (Filed With SEC on December 18, 2020)

Agreement of Sale dated as of November 1, 2020 between the Corporation and The Industrial Development Board of the City of Hoover regarding $63,400,000 million 6.375%... (Filed With SEC on November 24, 2020)

Loan Agreement dated as of November 1, 2020 between the Corporation and the Indiana Finance Authority regarding $33,300,000 Indiana Finance Authority Environmental Improvement... (Filed With SEC on November 24, 2020)

Export-Import Credit Agreement, dated September 30, 2020 (Filed With SEC on October 2, 2020)

Amendment, dated September 30, 2020 (Filed With SEC on October 2, 2020)

Amended and Restated Change in Control Severance Plan, effective July 28, 2020 (Filed With SEC on July 30, 2020)

Underwriting Agreement for the Shares, dated June 17, 2020 (Filed With SEC on June 22, 2020)

Purchase Agreement for the Senior Secured Notes, dated as of May 21, 2020 (Filed With SEC on May 26, 2020)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Cash Award Grant Agreement (ROCE Grant) (Filed With SEC on May 1, 2020)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Restricted Stock Unit Grant Agreement (Retention Grant) (Filed With SEC on May 1, 2020)

Administrative Procedures for the Executive Management Annual Incentive Compensation Plan under the United States Steel Corporation 2016 Omnibus Incentive Compensation Plan, as... (Filed With SEC on May 1, 2020)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan, as amended and restated on April 28, 2020 (Filed With SEC on May 1, 2020)

Option Agreement, dated April 30, 2020, by and between the Corporation and Stelco (Filed With SEC on April 30, 2020)

Description of Securities (Filed With SEC on February 14, 2020)

United States Steel Corporation Deferred Compensation Program for Non-Employee Directors, effective as of July 26, 2016, as amended on October 28, 2019 (Filed With SEC on February 14, 2020)

United States Steel Corporation Non-Employee Director Stock Program of the 2016 Omnibus Incentive Compensation Plan, as amended November 1, 2019 (Filed With SEC on February 14, 2020)

Separation Agreement and Release, by and between Kevin P. Bradley and United Stated Steel Corporation, as of October 7, 2019 (Filed With SEC on February 14, 2020)

Second Amended and Restated Borrower Security Agreement dated as of October 25, 2019, among United States Steel Corporation and JPMorgan Chase Bank, N.A., as Collateral Agent (Filed With SEC on October 28, 2019)

Second Amended and Restated Subsidiary Security Agreement dated as of October 25, 2019, among the Subsidiary Guarantors and JPMorgan Chase Bank, N.A., as Collateral Agent (Filed With SEC on October 28, 2019)

Agreement of Sale dated as of October 1, 2019 between the Corporation and The Industrial Development Board of the City of Hoover regarding $275 million 5.750% Environmental... (Filed With SEC on October 28, 2019)

Loan Agreement dated as of October 1, 2019 between the Corporation and the Allegheny County Industrial Development Authority regarding $92.63 million Environmental Improvement... (Filed With SEC on October 28, 2019)

Fifth Amended and Restated Credit Agreement dated as of October 25, 2019, among United States Steel Corporation, the Lenders party thereto, the LC Issuing Banks party thereto, and... (Filed With SEC on October 28, 2019)

Purchase Agreement, dated as of October 16, 2019, by and between the Corporation and the representatives of the several Initial Purchasers (Filed With SEC on October 21, 2019)

Indenture, dated as of October 21, 2019, by and between the Corporation and The Bank of New York Mellon (Filed With SEC on October 21, 2019)

Purchase and Sale Agreement, dated September 30, 2019, by and among U. S. Steel Holdco LLC, United States Steel Corporation and TPG Growth II BDH, L.P (Filed With SEC on October 1, 2019)

Recapitalization and Equity Purchase Agreement, dated September 30, 2019, by and among U. S. Steel Holdco LLC, BRS Stock Holdco LLC, Big River Steel Holdings LLC, the stockholders... (Filed With SEC on October 1, 2019)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Share Award Grant Agreement (TSR Grant) (Filed With SEC on May 3, 2019)

Administrative Procedures for the Executive Management Annual Incentive Compensation Plan under the United States Steel Corporation 2016 Omnibus Incentive Compensation Plan, as... (Filed With SEC on May 3, 2019)

United States Steel Corporation Non Tax-Qualified Retirement Account Program, Amended and Restated Effective January 1, 2019 (Filed With SEC on May 3, 2019)

United States Steel Corporation Supplemental Thrift Program, Amended and Restated Effective January 1, 2019 (Filed With SEC on May 3, 2019)

United States Steel Corporation Supplemental Retirement Account Program, Amended and Restated Effective January 1, 2019 (Filed With SEC on May 3, 2019)

Amendment No. 1 to the Fourth Amended and Restated Credit Agreement dated as of February 26, 2018, by and among United States Steel Corporation, a Delaware corporation (the... (Filed With SEC on February 15, 2019)

Form of Offer Letter to Duane D. Holloway (Filed With SEC on February 15, 2019)

Letter Agreement, dated December 21, 2018, between United States Steel Corporation and Douglas R. Matthews (Filed With SEC on February 15, 2019)

United States Steel Corporation Deferred Compensation Program for Non-Employee Directors, effective as of July 26, 2016, as amended on October 30, 2018 (Filed With SEC on February 15, 2019)

Summary of Non-Employee Director Fee Arrangements (Filed With SEC on February 15, 2019)

Summary of Realistically Achievable Potential (RAP) Incentive Program awards under the United States Steel Corporation 2016 Omnibus Incentive Compensation Plan (Filed With SEC on August 2, 2018)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Restricted Stock Unit Grant Agreement (Annual Grant) (Filed With SEC on April 27, 2018)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Restricted Stock Unit Grant Agreement (Retention Grant) (Filed With SEC on April 27, 2018)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Share Award Grant Agreement (TSR Grant) (Filed With SEC on April 27, 2018)

Form of United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Share Award Grant Agreement (ROCE Grant) (Filed With SEC on April 27, 2018)

Administrative Procedures for the Executive Management Annual Compensation Incentive Program under the United States Steel Corporation 2016 Omnibus Incentive Compensation Plan as... (Filed With SEC on April 27, 2018)

United States Steel Deferred Compensation Program for Non-Employee Directors, as amended April 24, 2018 (Filed With SEC on April 27, 2018)

Ninth Supplemental Indenture, dated as of March 15, 2018, by and between United States Steel Corporation and The Bank of New York Mellon, as trustee (Filed With SEC on March 15, 2018)

Underwriting Agreement, dated March 13, 2018, by and between United States Steel Corporation and J.P. Morgan Securities LLC, as representative of the several underwriters listed... (Filed With SEC on March 15, 2018)

Fourth Amended and Restated Credit Agreement dated as of February 26, 2018, among United States Steel Corporation, the Lenders party thereto, the LC Issuing Banks party thereto,... (Filed With SEC on March 2, 2018)

Amended and Restated Borrower Security Agreement dated as of February 26, 2018, among United States Steel Corporation and JPMorgan Chase Bank, N.A., as Collateral Agent (Filed With SEC on March 2, 2018)

Amended and Restated Subsidiary Security Agreement dated as of February 26, 2018, among U. S. Steel Seamless Tubular Operations, LLC and JPMorgan Chase Bank, N.A., as Collateral... (Filed With SEC on March 2, 2018)

Confidential Separation Agreement and General Release, dated November 10, 2017, between United States Steel Corporation and Suzanne Rich Folsom (Filed With SEC on February 21, 2018)

Letter Agreement dated November 20, 2017 between United States Steel Corporation and Scott Buckiso (Filed With SEC on February 21, 2018)

Summary of non-employee director fee arrangements (Filed With SEC on February 21, 2018)

Form of Offer Letter to Kevin Bradley (Filed With SEC on November 1, 2017)

UNITED STATES STEEL CORPORATION, Issuer and THE BANK OF NEW YORK MELLON, Trustee EIGHTH SUPPLEMENTAL INDENTURE DATED AS OF AUGUST 4, 2017 TO INDENTURE DATED AS OF MAY 21, 2007... (Filed With SEC on August 4, 2017)

UNDERWRITING AGREEMENT United States Steel Corporation $750,000,000 6.875% Senior Notes due 2025 (Filed With SEC on August 2, 2017)

SEPARATION AGREEMENT (Filed With SEC on May 10, 2017)

FIRST AMENDMENT TO UNITED STATES STEEL CORPORATION 2016 OMNIBUS INCENTIVE COMPENSATION PLAN (Filed With SEC on April 26, 2017)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Restricted Stock Unit Grant Agreement (Filed With SEC on February 28, 2017)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Non-Qualified Stock Option Grant Agreement (Filed With SEC on February 28, 2017)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Share Award Grant Agreement (Filed With SEC on February 28, 2017)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Performance Cash Award Grant Agreement (Filed With SEC on February 28, 2017)

Administrative Procedures for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation 2016 Omnibus Incentive Compensation Plan As... (Filed With SEC on February 28, 2017)

Administrative Procedures for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation Annual Incentive Compensation Plan As... (Filed With SEC on November 2, 2016)

United States Steel Corporation Non Tax-Qualified Retirement Account Program Effective December 31, 2006, Amended and Restated Effective January 1, 2016 (Filed With SEC on November 2, 2016)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005, Amended and Restated Effective November 1, 2016 (Filed With SEC on November 2, 2016)

UNDERWRITING AGREEMENT United States Steel Corporation 18,900,000 Shares of Common Stock, Par Value $1.00 Per Share (Filed With SEC on August 15, 2016)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Restricted Stock Unit Grant Agreement (Filed With SEC on July 27, 2016)

United States Steel Corporation 2016 Omnibus Incentive Compensation Plan Non-Qualified Stock Option Grant Agreement (Filed With SEC on July 27, 2016)

UNITED STATES STEEL CORPORATION $980,000,000 8.375% Senior Secured Notes due 2021 Purchase Agreement (Filed With SEC on May 4, 2016)

UNITED STATES STEEL CORPORATION 2016 OMNIBUS INCENTIVE COMPENSATION PLAN Effective April 26, 2016 (Filed With SEC on April 27, 2016)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 Administrative Procedures for the Long-Term Incentive... (Filed With SEC on February 29, 2016)

AMENDMENT NO. 1 TO THIRD AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on February 29, 2016)

Administrative Procedures for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation Annual Incentive Compensation Plan As... (Filed With SEC on February 29, 2016)

United States Steel Corporation Change in Control Severance Plan Effective January 1, 2016 (Filed With SEC on November 6, 2015)

UNITED STATES STEEL CORPORATION SUPPLEMENTAL RETIREMENT ACCOUNT PROGRAM Effective December 31, 2006, Amended and Restated Effective January 1, 2016 (Filed With SEC on November 4, 2015)

UNITED STATES STEEL CORPORATION NON TAX-QUALIFIED PENSION PLAN Amended and Restated Effective December 31, 2015 (Filed With SEC on August 21, 2015)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Effective January 1, 2005, Amended and Restated Effective December 31, 2015 (Filed With SEC on August 21, 2015)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Non-Qualified Stock Option Grant Agreement... (Filed With SEC on April 29, 2015)

Incentive Award Agreement 2010 Annual Incentive Compensation Plan (Filed With SEC on April 29, 2015)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 Administrative Procedures for the Long-Term Incentive... (Filed With SEC on April 29, 2015)

Administrative Procedures for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation 2010 Annual Incentive Compensation Plan As... (Filed With SEC on April 29, 2015)

DIP FACILITY TERM SHEET DATED as of September 16, 2014 (Filed With SEC on September 17, 2014)

Exhibit 10.1 SEVENTH AMENDMENT TO THE SECOND AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on July 25, 2014)

WAIVER AND AMENDMENT NO. 1 TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on July 25, 2014)

BASE SALARIES OF, AND OTHER ARRANGEMENTS WITH, NAMED EXECUTIVE OFFICERS (Filed With SEC on April 30, 2014)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. (Filed With SEC on April 30, 2014)

Exhibit 10.3 (Filed With SEC on April 30, 2014)

Exhibit 10.4 (Filed With SEC on April 30, 2014)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 Administrative Regulations for the Long-Term... (Filed With SEC on March 3, 2014)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. (Filed With SEC on March 3, 2014)

UNITED STATES STEEL CORPORATION SUPPLEMENTAL RETIREMENT ACCOUNT PROGRAM Effective December 31, 2006, Amended and Restated Effective November 13, 2013 (Filed With SEC on February 25, 2014)

Exhibit 10(f) (Filed With SEC on February 25, 2014)

NON-EMPLOYEE DIRECTOR FEE ARRANGEMENTS (Filed With SEC on February 25, 2014)

United States Steel Corporation Non Tax-Qualified Retirement Account Program Effective December 31, 2006, Amended and Restated Effective November 13, 2013 (Filed With SEC on February 25, 2014)

RECOUPMENT POLICY (Filed With SEC on February 25, 2014)

Administrative Regulations for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation 2010 Annual Incentive Compensation Plan As... (Filed With SEC on January 31, 2014)

SIXTH AMENDMENT TO THE SECOND AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on October 29, 2013)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Effective January 1, 2005, Amended and Restated Effective July 31, 2013 (Filed With SEC on October 29, 2013)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005, Amended and Restated Effective July 31, 2013 (Filed With SEC on October 29, 2013)

UNITED STATES STEEL CORPORATION NON TAX-QUALIFIED PENSION PLAN Amended and Restated Effective July 31, 2013 (Filed With SEC on October 29, 2013)

United States Steel Corporation Non Tax-Qualified Retirement Account Program Effective December 31, 2006, Amended and Restated Effective July 31, 2013 (Filed With SEC on October 29, 2013)

SUPPLEMENTAL ACCOUNT Amended and Restated Effective July 31, 2013 (M. Longhi) (Filed With SEC on October 29, 2013)

UNITED STATES STEEL CORPORATION SUPPLEMENTAL RETIREMENT ACCOUNT PROGRAM Effective December 31, 2006, Amended and Restated Effective July 31, 2013 (Filed With SEC on August 20, 2013)

Page 1 of 6 (Filed With SEC on August 20, 2013)

FIFTH AMENDMENT TO THE SECOND AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on July 16, 2013)

THIS DOCUMENTCONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIESACT OF 1933 Administrative Regulations for the Long-Term Incentive... (Filed With SEC on May 30, 2013)

BASE SALARIES OF, AND OTHER ARRANGEMENTS WITH, NAMED EXECUTIVE OFFICERS (Filed With SEC on April 30, 2013)

UNITED STATES STEEL CORPORATION, Issuer and THE BANK OF NEW YORK MELLON, Trustee SIXTH SUPPLEMENTAL INDENTURE DATED AS OF MARCH 26, 2013 TO INDENTURE DATED AS OF MAY 21, 2007... (Filed With SEC on March 27, 2013)

UNITED STATES STEEL CORPORATION, Issuer and THE BANK OF NEW YORK MELLON, Trustee SEVENTH SUPPLEMENTAL INDENTURE DATED AS OF MARCH 26, 2013 TO INDENTURE DATED AS OF MAY 21, 2007... (Filed With SEC on March 27, 2013)

UNDERWRITING AGREEMENT United States Steel Corporation $275,000,000 2.75% Senior Convertible Notes due 2019 (Filed With SEC on March 21, 2013)

UNDERWRITING AGREEMENT United States Steel Corporation $275,000,000 6.875% Senior Notes due 2021 (Filed With SEC on March 21, 2013)

LOAN AGREEMENT between INDIANA FINANCE AUTHORITY and UNITED STATES STEEL CORPORATION $29,000,000 Indiana Finance Authority Environmental Improvement Revenue Bonds,Series 2012... (Filed With SEC on August 20, 2012)

LOAN AGREEMENT between ALLEGHENY COUNTY INDUSTRIAL DEVELOPMENTAUTHORITY, as Issuer and UNITED STATES STEEL CORPORATION $24,995,000 Allegheny County Industrial Development... (Filed With SEC on August 20, 2012)

LOAN AGREEMENT between SOUTHWESTERN ILLINOIS DEVELOPMENT AUTHORITY and UNITED STATES STEEL CORPORATION $40,000,000 Southwestern Illinois Development Authority Environmental... (Filed With SEC on August 20, 2012)

SUPPLEMENTAL ACCOUNT (Filed With SEC on July 2, 2012)

United States Steel Corporation Non Tax-Qualified Retirement AccountProgram Effective December 31, 2006, Amended as of February 21, 2011 (Filed With SEC on July 2, 2012)

/s/ MarioLonghi (Filed With SEC on July 2, 2012)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Performance Award Grant Agreement (Long-Term... (Filed With SEC on July 2, 2012)

FOURTH AMENDMENT TO THE SECOND AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on April 25, 2012)

BASE SALARIES OF, AND OTHER ARRANGEMENTS WITH, NAMED EXECUTIVE OFFICERS (Filed With SEC on April 25, 2012)

UNITED STATES STEEL CORPORATION, Issuer and THE BANK OF NEW YORK MELLON, Trustee FIFTH SUPPLEMENTAL INDENTURE DATED AS OF MARCH 15, 2012 TO INDENTURE DATED AS OF MAY 21, 2007... (Filed With SEC on March 16, 2012)

UNITED STATES STEEL CORPORATION (Filed With SEC on March 16, 2012)

Underwriting Agreement $400,000,000 7.500% Senior Notes due 2022 March 12, 2012 (Filed With SEC on March 13, 2012)

UNITED STATES STEEL CORPORATION DEFERRED COMPENSATION PROGRAM FOR NON-EMPLOYEE DIRECTORS (Effective as of November 29, 2005) (Filed With SEC on February 28, 2012)

Administrative Regulations for the Executive Management Annual IncentiveCompensation Program under the United States Steel Corporation 2010 Annual Incentive Compensation Plan As... (Filed With SEC on February 28, 2012)

Page 2 (Filed With SEC on February 28, 2012)

MASTERSHARE PURCHASE AGREEMENT (Filed With SEC on February 6, 2012)

LOAN AGREEMENT between UTAH COUNTY, UTAH, as Issuer and UNITEDSTATES STEEL CORPORATION $32,375,000 Utah County, Utah Environmental Improvement Revenue Refunding Bonds, Series 2011... (Filed With SEC on December 12, 2011)

LOAN AGREEMENT between INDIANA FINANCE AUTHORITY and UNITED STATES STEEL CORPORATION $55,000,000 Indiana Finance Authority Environmental Improvement Revenue Refunding Bonds,... (Filed With SEC on November 15, 2011)

LOAN AGREEMENT (Filed With SEC on November 15, 2011)

BOND AMORTIZATION AGREEMENT between GULF COAST WASTE DISPOSAL AUTHORITY and UNITED STATES STEEL CORPORATION $10,600,000 Gulf Coast Waste Disposal Authority Environmental... (Filed With SEC on November 15, 2011)

LOAN AGREEMENT between OHIO WATER DEVELOPMENT AUTHORITY, as Issuer and UNITEDSTATES STEEL CORPORATION $21,800,000 State of Ohio Environmental Improvement Revenue Refunding Bonds,... (Filed With SEC on November 15, 2011)

LOAN AGREEMENT between OHIO AIR QUALITY DEVELOPMENT AUTHORITY, as Issuer and UNITEDSTATES STEEL CORPORATION $10,160,000 Environmental Improvement Revenue Refunding Bonds,... (Filed With SEC on November 15, 2011)

AMENDED AND RESTATED AGREEMENT OF SALE between THE INDUSTRIAL DEVELOPMENT BOARD OF THE CITY OF FAIRFIELD (ALABAMA), as Issuer and UNITEDSTATES STEEL CORPORATION $17,120,000... (Filed With SEC on November 15, 2011)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005, Amended to July 31, 2011 (Filed With SEC on October 25, 2011)

UNITED STATES STEEL CORPORATION NON TAX-QUALIFIED PENSION PLAN Amended Effective July 31, 2011 (Filed With SEC on October 25, 2011)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTALPENSION PROGRAM Effective January 1, 2005, Amended Effective July 31, 2011 (Filed With SEC on October 25, 2011)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (Filed With SEC on October 25, 2011)

THIRD AMENDMENT TO THE SECOND AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on July 21, 2011)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 (Filed With SEC on April 26, 2011)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. (Filed With SEC on April 26, 2011)

NON-EMPLOYEE DIRECTOR FEE ARRANGEMENTS (Filed With SEC on April 26, 2011)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Effective January 1, 2005, Amended Effective March 1, 2011 (Filed With SEC on April 26, 2011)

United States Steel Corporation Supplemental Thrift Program Effective January 1,2005, Amended to April 25, 2011 (Filed With SEC on April 26, 2011)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on April 26, 2011)

1 of 3 (Filed With SEC on February 22, 2011)

Administrative Regulations for the Executive Management Annual IncentiveCompensation Program under the United States Steel Corporation 2010 Annual Incentive Compensation Plan As... (Filed With SEC on February 22, 2011)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005, As Amended and Restated to June 1, 2010 (Filed With SEC on October 26, 2010)

THIS DOCUMENT CONSTITUTES PART OF APROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF1933 (Filed With SEC on April 27, 2010)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Non-Qualified Stock Option Grant Agreement... (Filed With SEC on April 27, 2010)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Performance Award Grant Agreement (Long-Term... (Filed With SEC on April 27, 2010)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Restricted Stock Unit Grant Agreement (Long-Term... (Filed With SEC on April 27, 2010)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on April 27, 2010)

NON EMPLOYEE DIRECTOR FEE ARRANGEMENTS (Filed With SEC on April 27, 2010)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005, Amended to June 1, 2010 (Filed With SEC on April 27, 2010)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on February 24, 2010)

Administrative Regulations for the Executive ManagementAnnual Incentive Compensation Program under the United States Steel Corporation 2005 Annual Incentive Compensation Plan As... (Filed With SEC on February 24, 2010)

RECOUPMENT POLICY (Filed With SEC on February 24, 2010)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDERTHE SECURITIES ACT OF 1933 Administrative Regulations for the Long-Term Incentive... (Filed With SEC on July 28, 2009)

Administrative Regulations for the United States Steel Corporation 2002 Stock Plan (As Amended by theCompensation & Organization Committee on May 26, 2009) (Filed With SEC on July 28, 2009)

SUMMARY OF NON EMPLOYEE DIRECTOR COMPENSATION ARRANGEMENTS (Filed With SEC on July 28, 2009)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on July 28, 2009)

$15,500,000 COMMITMENT INCREASE under AMENDED AND RESTATED CREDIT AGREEMENT (Filed With SEC on July 28, 2009)

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers (Filed With SEC on April 30, 2009)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Effective January 1, 2005, Amended Effective February 28, 2009 (Filed With SEC on February 24, 2009)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005,Amended to February 28, 2009 (Filed With SEC on February 24, 2009)

SUMMARY OF NON EMPLOYEE DIRECTOR COMPENSATION ARRANGEMENTS (Filed With SEC on February 24, 2009)

UNITED STATES STEEL CORPORATION NON TAX-QUALIFIED PENSION PLAN (Filed With SEC on February 24, 2009)

UNITED STATES STEEL CORPORATION 2005 ANNUAL INCENTIVE COMPENSATION PLAN (Filed With SEC on February 24, 2009)

Administrative Regulations for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation 2005 Annual Incentive Compensation Plan (Filed With SEC on February 24, 2009)

1 of 3 (Filed With SEC on February 24, 2009)

AGREEMENT DATED 2 July 2008 200,000,000 CREDIT FACILITY (Filed With SEC on July 29, 2008)

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers (Filed With SEC on May 2, 2008)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on April 29, 2008)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Effective January 1, 2005, Amended Effective July 31, 2006 (Filed With SEC on February 27, 2008)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005,Amended to November 30, 2005 (Filed With SEC on February 27, 2008)

UNITED STATES STEEL CORPORATION DEFERRED COMPENSATION PROGRAM (Filed With SEC on February 27, 2008)

UNITED STATES STEEL CORPORATION NON TAX-QUALIFIED PENSION PLAN (Filed With SEC on February 27, 2008)

Administrative Regulations for the Long-Term Incentive Compensation Program (Filed With SEC on February 27, 2008)

UNITED STATES STEEL CORPORATION 2005 ANNUAL INCENTIVE COMPENSATION PLAN (Filed With SEC on February 27, 2008)

Administrative Regulations for the Executive Management Annual Incentive Compensation Program (Filed With SEC on February 27, 2008)

THREE-YEAR TERM LOAN AGREEMENT dated as of October 12, 2007 (Filed With SEC on October 16, 2007)

ONE-YEAR TERM LOAN AGREEMENT dated as of October 12, 2007 (Filed With SEC on October 16, 2007)

ARRANGEMENT AGREEMENT BY AND AMONG UNITED STATES STEEL CORPORATION, 1344973 ALBERTA ULC (Filed With SEC on August 30, 2007)

SUPPORT AGREEMENT (Filed With SEC on August 30, 2007)

$900,000,000 Senior Credit Facilities Commitment Letter (Filed With SEC on August 30, 2007)

UNITEDSTATES STEEL CORPORATION, Issuer and THE BANKOF NEW YORK, Trustee INDENTURE Dated asof May 21, 2007 SeniorSecurities (Filed With SEC on May 22, 2007)

UNITED STATES STEELCORPORATION, Issuer and THE BANK OF NEW YORK, Trustee FIRST SUPPLEMENTALINDENTURE DATED AS OF MAY 21, 2007 TO INDENTURE DATED AS OF MAY 21, 2007 Relating To... (Filed With SEC on May 22, 2007)

UNITED STATES STEEL CORPORATION (Filed With SEC on May 22, 2007)

$1,750,000,000 Senior Credit Facilities Commitment Letter (Filed With SEC on April 25, 2007)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on April 25, 2007)

SUMMARY OF NON-EMPLOYEE DIRECTOR COMPENSATION ARRANGEMENTS (Filed With SEC on April 25, 2007)

AGREEMENT AND PLAN OF MERGER BY AND AMONG UNITED STATES STEEL CORPORATION, WP ACQUISITION HOLDING CORP. (Filed With SEC on March 29, 2007)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDERTHE SECURITIES ACT OF 1933 Administrative Regulations for the Long-Term Incentive... (Filed With SEC on February 27, 2007)

Administrative Regulations for the Executive Management Annual Incentive Compensation Program (Filed With SEC on February 27, 2007)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Non-Qualified Stock Option Grant (Long-Term... (Filed With SEC on February 27, 2007)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Restricted Stock Grant (Long-Term Incentive... (Filed With SEC on February 27, 2007)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Performance Award Grant (Long-Term Incentive... (Filed With SEC on February 27, 2007)

Agreedto: (Filed With SEC on February 27, 2007)

SUMMARY OF NON-EMPLOYEE DIRECTOR COMPENSATION ARRANGEMENTS (Filed With SEC on July 28, 2006)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Amended Effective December 31, 2005 (Filed With SEC on April 28, 2006)

BASE SALARIES OF NAMED EXECUTIVE OFFICERS (Filed With SEC on April 28, 2006)

SUMMARY OF NON-EMPLOYEE DIRECTOR COMPENSATION ARRANGEMENTS (Filed With SEC on April 28, 2006)

UNITED STATES STEEL CORPORATION EXECUTIVE MANAGEMENT SUPPLEMENTAL PENSION PROGRAM Amended Effective January 1, 2005 (Filed With SEC on February 28, 2006)

United States Steel Corporation Supplemental Thrift Program Effective January 1, 2005,Amended to November 30, 2005 (Filed With SEC on February 28, 2006)

UNITED STATES STEEL CORPORATION NON TAX-QUALIFIED PENSION PLAN, (Filed With SEC on February 28, 2006)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Non-Qualified Stock Option Grant (Long-Term... (Filed With SEC on February 28, 2006)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Restricted Stock Grant (Long-Term Incentive... (Filed With SEC on February 28, 2006)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. Performance Award Grant (Long-Term Incentive... (Filed With SEC on February 28, 2006)

Administrative Regulations for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation 2005Annual Incentive Compensation Plan As... (Filed With SEC on February 13, 2006)

CONTENTS (Filed With SEC on December 20, 2005)

UNITED STATES STEEL CORPORATION DEFERRED COMPENSATION PROGRAM FOR NON-EMPLOYEE DIRECTORS (Filed With SEC on December 2, 2005)

Administrative Regulations for the Long-Term Incentive Compensation Program under the United States Steel Corporation 2005 Stock IncentivePlan As adopted by the Compensation... (Filed With SEC on December 2, 2005)

Administrative Regulations for the Executive Management Annual Incentive Compensation Program under the United States Steel Corporation 2005Annual Incentive Compensation Plan As... (Filed With SEC on December 2, 2005)

AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on November 23, 2005)

The United States Steel Corporation Non-Employee Director Stock Program (Filed With SEC on May 31, 2005)

THIS DOCUMENT CONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN (Filed With SEC on May 31, 2005)

AsAmended on April 26, 2005 (Filed With SEC on April 28, 2005)

THIS DOCUMENTCONSTITUTES PART OF A PROSPECTUS COVERING SECURITIES THAT HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933. (Filed With SEC on February 25, 2005)

Non-QualifiedStock Option Grant (2002 Stock Plan) (Filed With SEC on February 25, 2005)

NOT TRANSFERABLE EXCEPT BY WILL OR BYTHE LAWS GOVERNING THE DESCENT AND DISTRIBUTION OF ESTATES (Filed With SEC on February 25, 2005)

AMENDED AND RESTATED CREDIT AGREEMENT dated as of May 20, 2003 and (Filed With SEC on October 29, 2004)

AMENDED AND RESTATED SECURITY AGREEMENT dated as of (Filed With SEC on October 29, 2004)

THIRD AMENDMENT TO THE AMENDED (Filed With SEC on February 25, 2004)

CREDIT AGREEMENT dated as of November 30, 2001 among UNITED STATES STEEL LLC THE LENDERS PARTY HERETO THE LC ISSUING BANKS PARTY HERETO JPMORGAN CHASE BANK, as Administrative... (Filed With SEC on March 10, 2003)

CERTIFICATE OF DESIGNATION OF 7.00% SERIES B MANDATORY CONVERTIBLE PREFERRED SHARES OF UNITED STATES STEEL CORPORATION Pursuant to Section 151 of the General Corporation Law of... (Filed With SEC on March 10, 2003)

UNITEDSTATES STEEL CORPORATION 2002 STOCK PLAN (Filed With SEC on March 10, 2003)

United States SteelCorporation Senior Executive Officer Annual Incentive Compensation Plan (Filed With SEC on March 10, 2003)

FIRST AMENDMENT TO THE AMENDED AND RESTATED RECEIVABLES PURCHASE AGREEMENT (Filed With SEC on March 10, 2003)

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