----

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|   |
|--------|
|   |   |
| ý | ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|   | For the Year Ended December 31, 2011 |

|   |
|--------|
|   |   |
|  ̈ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 |
|   | For the transition period from              to              |

|                                                          |
|---------------------------------------------------------------|
|                                                          |   |   |
| Delaware                                                      |   | 20-5622045 |
| (State or other jurisdiction ofincorporation or organization) |   | (I.R.S. EmployerIdentification No.) |
|                                                          |   |
| 12312 Olive Boulevard, Suite 400St. Louis, Missouri           |   | 63141 |
| (Address of principal executive offices)                      |   | (Zip Code) |

|                                    |
|-----------------------------------------|
|                                    |   |   |
|                                    |   |   |
| Title of Each Class                     |   | Name of Each Exchange on Which Registered |
| Common Stock, par value $0.01 per share |   | New York Stock Exchange |
| Preferred Share Purchase Rights         |   | New York Stock Exchange |

| Large accelerated filer |   | þ |    | Accelerated filer              |   |  ̈ |
|-----------------------------------|--------|--------|--------------|-------------------------------------|--------|--------|
|                              |   |   |         |                                |   |   |
| Non-accelerated filer             |   |  ̈ |    | Smaller reporting company |   |  ̈ |

----

----

----

----

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|   | /s/ Ernst & Young LLP |
|--------|--------------------------------|

|      |                                  |   |
|-----------|---------------------------------------|--------|
| (a)       | Documents Filed as Part of the Report |
|      |                                  |   |
| (1)  | Financial Statements.                 |

----

|                                                                                                                       |
|----------------------------------------------------------------------------------------------------------------------------|
|                                                                                                                       |   |
|                                                                                                                       | Page |
|                                                                                                                       |   |
| Reports of Independent Registered Public Accounting Firms                                                                  | F-1 |
|                                                                                                                       |   |
| Consolidated Statements of Operations – Years Ended December 31, 2011, 2010 and 2009                            | F-2 |
|                                                                                                                       |   |
| Consolidated Balance Sheets – December 31, 2011 and December 31, 2010                                      | F-3 |
|                                                                                                                       |   |
| Consolidated Statements of Cash Flows – Years Ended December 31, 2011, 2010 and 2009                            | F-4 |
|                                                                                                                       |   |
| Consolidated Statements of Changes in Stockholders’ Equity – Years Ended December 31, 2011, 2010 and 2009 | F-5 |
|                                                                                                                       |   |
| Notes to Consolidated Financial Statements                                                                                 | F-6 |

| (2) | Financial Statement Schedule. |
|-----|-------------------------------|

|                              | Page   |
|-----------------------------------|--------|
|                              |   |
| Valuation and Qualifying Accounts | F-62   |

| (3) | Exhibits. |
|-----|-----------|

----

|                                                                                         |   |
|----------------------------------------------------------------------------------------------|--------|
|                                                                                         |   |
| PATRIOT COAL CORPORATION                                                                     |   |
|                                                                                         |   |
| /s/    IRL F. ENGELHARDT         |   |
| Irl F. Engelhardt                                                                            |   |
| Chief Executive Officer and Chairman of the Board                                            |   |

|                                         |
|----------------------------------------------|
|                                         |   |   |
|                                         |   |   |
| Signature                                    | Title | Date |
|                                         |   |   |
| /s/    IRL F. ENGELHARDT | Chief Executive Officer andChairman of the Board | August 9, 2012 |
| Irl F. Engelhardt                            |
|                                         |   |   |
| /s/    MARK N. SCHROEDER | Senior Vice President and Chief Financial Officer (principal financial officer) | August 9, 2012 |
| Mark N. Schroeder                            |
|                                         |   |   |
| /s/    J. JOE ADORJAN    | Director | August 9, 2012 |
| J. Joe Adorjan                               |

----

|                                           |     |           |
|------------------------------------------------|----------|----------------|
| /s/    B. R. BROWN         | Director | August 9, 2012 |
| B. R. Brown                                    |
|                                           |     |           |
| /s/    MICHAEL P. JOHNSON  | Director | August 9, 2012 |
| Michael P. Johnson                             |
|                                           |     |           |
| /s/    JANIECE M. LONGORIA | Director | August 9, 2012 |
| Janiece M. Longoria                            |
|                                           |     |           |
| /s/    JOHN E. LUSHEFSKI   | Director | August 9, 2012 |
| John E. Lushefski                              |

|                                       |     |           |
|--------------------------------------------|----------|----------------|
| /s/    ROBERT O. VIETS | Director | August 9, 2012 |
| Robert O. Viets                            |

----

| Exhibit No. |   | Description of Exhibit                                                                                                                                                                                                                                                                                                                                                                                     |
|------------------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 2.1              |   | Separation Agreement, Plan of Reorganization and Distribution, dated October 22, 2007, between Peabody Energy Corporation and Patriot Coal Corporation. (Incorporated by reference to Exhibit 2.1 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                                              |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 2.2              |   | Amendment No. 1 to the Separation Agreement, Plan of Reorganization and Distribution, dated November 1, 2007, between Peabody Energy Corporation and Patriot Coal Corporation. (Incorporated by reference to Exhibit 10.42 of the Registrant's Annual Report on Form 10-K, filed on March 14, 2008.)                                                                                                       |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 2.3              |   | Agreement and Plan of Merger, dated as of April 2, 2008, by and among Magnum Coal Company, Patriot Coal Corporation, Colt Merger Corporation, and ArcLight Energy Partners Fund I, L.P. and ArcLight Energy Partners Fund II, L.P., acting jointly, as Stockholder Representative. (Incorporated by reference to Exhibit 2.1 of the Registrant's Current Report on Form 8-K, filed on April 8, 2008.) |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 3.1              |   | Amended and Restated Certificate of Incorporation. (Incorporated by reference to Exhibit 3.1 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                                                                                                                                                   |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 3.2              |   | Certificate of Amendment of the Amended and Restated Certificate of Incorporation. (Incorporated by reference to Exhibit 3.1 of the Registrant's Current Report on Form 8-K, filed on May 17, 2010.)                                                                                                                                                                                                       |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 3.3              |   | Amended and Restated By-Laws. (Incorporated by reference to Exhibit 3.2 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                                                                                                                                                                   |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 4.1              |   | Rights Agreement, dated October 22, 2007, between Patriot Coal Corporation and American Stock Transfer & Trust Company. (Incorporated by reference to Exhibit 4.1 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                                                                     |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 4.2              |   | Certificate of Designations of Series A Junior Participating Preferred Stock. (Incorporated by reference to Exhibit 4.1 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                                                                                        |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 4.3              |   | First Amendment to Rights Agreement, dated as of April 2, 2008, to the Rights Agreement, dated as of October 22, 2007 between Patriot Coal Corporation and American Stock Transfer & Trust Company, as Rights Agent. (Incorporated by reference to Exhibit 4.1 of the Registrant's Current Report on Form 8-K, filed on April 8, 2008.)                                                                |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 4.4              |   | Indenture dated as of May 28, 2008, by and between Patriot Coal Corporation, as Issuer, and U.S. Bank National Association, as trustee (including form of 3.25% Convertible Senior Notes due 2013). (Incorporated by reference to the Registrant's Current Report on Form 8-K, dated May 29, 2008.)                                                                                                        |
|             |   |                                                                                                                                                                                                                                                                                                                                                                                                       |
| 4.5              |   | Indenture dated as of May 5, 2010 between Patriot Coal Corporation and Wilmington Trust Company, as trustee. (Incorporated by reference to Exhibit 4.1 of the Registrant's Current Report on Form 8-K, filed on May 5, 2010.)                                                                                                                                                                              |

----

| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 4.6    |   | First Supplemental Indenture dated May 5, 2010 among Patriot Coal Corporation, the guarantors party thereto and Wilmington Trust Company, trustee. (Incorporated by reference to Exhibit 4.2 of the Registrant's Current Report on Form 8-K, filed on May 5, 2010.)                                                         |
|--------|--------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 4.7    |   | Second Supplemental Indenture dated May 5, 2010 among Patriot Coal Corporation, the guarantors party thereto and Wilmington Trust Company, trustee. (Incorporated by reference to Exhibit 4.3 of the Registrant's Current Report on Form 8-K, filed on May 5, 2010.)                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.1   |   | Tax Separation Agreement, dated October 22, 2007, between Peabody Energy Corporation and Patriot Coal Corporation. (Incorporated by reference to Exhibit 10.2 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.2   |   | Employee Matters Agreement, dated October 22, 2007, between Peabody Energy Corporation and Patriot Coal Corporation. (Incorporated by reference to Exhibit 10.3 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.3   |   | Coal Act Liabilities Assumption Agreement, dated October 22, 2007, among Patriot Coal Corporation, Peabody Holding Company, LLC and Peabody Energy Corporation. (Incorporated by reference to Exhibit 10.9 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                      |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.4   |   | Salaried Employee Liabilities Assumption Agreement, dated October 22, 2007, among Patriot Coal Corporation, Peabody Holding Company, LLC, Peabody Coal Company, LLC and Peabody Energy Corporation. (Incorporated by reference to Exhibit 10.11 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.) |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.5   |   | Administrative Services Agreement, dated October 22, 2007, between Patriot Coal Corporation, Peabody Holding Company, LLC and Peabody Energy Corporation. (Incorporated by reference to Exhibit 10.12 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                           |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.6   |   | Master Equipment Sublease Agreement, dated October 22, 2007, between Patriot Leasing Company LLC and PEC Equipment Company, LLC. (Incorporated by reference to Exhibit 10.13 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.7   |   | Software License Agreement, dated October 22, 2007, between Patriot Coal Corporation and Peabody Energy Corporation. (Incorporated by reference to Exhibit 10.14 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                        |
| 10.8   |   | Throughput and Storage Agreement, dated October 22, 2007, among Peabody Terminals, LLC, James River Coal Terminal, LLC and Patriot Coal Sales LLC. (Incorporated by reference to Exhibit 10.15 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                  |

----

| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 10.9   |   | Conveyance and Assumption Agreement, dated October 22, 2007, among PEC Equipment Company, LLC, Central States Coal Reserves of Indiana, LLC, Central States Coal Reserves of Illinois, LLC, Cyprus Creek Land Company and Peabody Coal Company, LLC. (Incorporated by reference to Exhibit 10.16 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.) |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.10  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and J. Joe Adorjan. (Incorporated by reference to Exhibit 10.3 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.11  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and B. R. Brown. (Incorporated by reference to Exhibit 10.4 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                                  |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.12  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and John E. Lushefski. (Incorporated by reference to Exhibit 10.5 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.13  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and Michael M. Scharf. (Incorporated by reference to Exhibit 10.6 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.14  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and Robert O. Viets. (Incorporated by reference to Exhibit 10.7 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.15  |   | Indemnification Agreement, dated July 24, 2008, between Patriot Coal Corporation and Robb E. Turner. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on July 28, 2008.)                                                                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.16  |   | Indemnification Agreement, dated July 24, 2008, between Patriot Coal Corporation and John E. Erhard. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on July 28, 2008.)                                                                                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.17  |   | Indemnification Agreement, dated July 24, 2008, between Patriot Coal Corporation and Michael P. Johnson. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on July 28, 2008.)                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.18  |   | Indemnification Agreement, dated January 27, 2011, between Patriot Coal Corporation and Janiece M. Longoria. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on January 28, 2011.)                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                                         |
| 10.19  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and Irl F. Engelhardt. (Incorporated by reference to Exhibit 10.2 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                            |

----

| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 10.20  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and Richard M. Whiting. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                               |
|--------|--------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.21  |   | Employment Agreement, dated October 31, 2007, between Patriot Coal Corporation and Richard M. Whiting. (Incorporated by reference to Exhibit 10.9 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.22  |   | Indemnification Agreement, dated November 1, 2007, between Patriot Coal Corporation and Mark N. Schroeder. (Incorporated by reference to Exhibit 10.8 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.23  |   | Employment Agreement, dated October 31, 2007, between Patriot Coal Corporation and Mark N. Schroeder. (Incorporated by reference to Exhibit 10.10 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.24  |   | Employment Agreement, dated October 31, 2007, between Patriot Coal Corporation and Charles A. Ebetino, Jr. (Incorporated by reference to Exhibit 10.12 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.25  |   | Amendment to Employment Agreement between Patriot Coal Corporation and Charles A. Ebetino, Jr. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on February 6, 2009.)                                                                                                                            |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.26  |   | Employment Agreement, dated October 31, 2007, between Patriot Coal Corporation and Joseph W. Bean. (Incorporated by reference to Exhibit 10.13 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                       |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.27  |   | Amendment to Employment Agreement between Patriot Coal Corporation and Joseph W. Bean. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on February 6, 2009.)                                                                                                                                    |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.28  |   | Employment Agreement, dated September 19, 2011, between Patriot Coal Corporation and Bennett K. Hatfield. (Incorporated by reference to the Registrant's Quarterly Report on Form 10-Q, filed on November 2, 2011.)                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.29  |   | Patriot Coal Corporation Pledge and Security Agreement, dated October 31, 2007, among Patriot Coal Corporation, certain subsidiaries of Patriot Coal Corporation and Bank of America, N.A. (Incorporated by reference to Exhibit 10.2 of the Registrant's Current Report on Form 8-K, filed on October 31, 2007.)                |
|   |   |                                                                                                                                                                                                                                                                                                                             |
| 10.30  |   | Amended and Restated Credit Agreement dated as of May 5, 2010 among Patriot Coal Corporation, Bank of America, N.A., as Administrative Agent, L/C Issuer and Swing Line Lender, and the lenders party thereto. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on May 5, 2010.) |

----

| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 10.31  |   | Amendment No. 1, dated as of January 6, 2011, to the Amended and Restated Credit Agreement dated as of May 5, 2010, among Patriot Coal Corporation, Bank of America, N.A., as administrative agent, L/C Issuer and Swing Line Lender, and the lenders party thereto. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on January 6, 2011.)                                                                                   |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.32  |   | Amendment No. 2, dated as of January 31, 2012, to the Amended and Restated Credit Agreement dated as of May 5, 2010, among Patriot Coal Corporation, Bank of America, N.A., as administrative agent, L/C Issuer and Swing Line Lender, and the lenders party thereto. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on February 2, 2012.)                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.33  |   | Purchase and Sale Agreement, dated as of March 2, 2010, among the Originators referred to therein, as sellers, Patriot Coal Corporation and Patriot Coal Receivables (SPV) Ltd. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on March 4, 2010.)                                                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.34  |   | Receivables Purchase Agreement, dated as of March 2, 2010, among Patriot Coal Receivables (SPV) Ltd., Patriot Coal Corporation, as Servicer, the LC Participants, Related Committed Purchasers, Uncommitted Purchasers and Purchaser Agents parties thereto from time to time and Fifth Third Bank, as Administrator and as issuer of letters of credit. (Incorporated by reference to Exhibit 10.2 of the Registrant's Current Report on Form 8-K, filed on March 4, 2010.) |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.35  |   | Purchase Agreement, dated May 21, 2008 by and among Patriot Coal Corporation and Citigroup Global Markets Inc. and Lehman Brothers Inc. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on May 23, 2008.)                                                                                                                                                                                                                                   |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.36  |   | Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.17 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                                                                                                                                                                                                       |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.37  |   | First Amendment to the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.46 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                                                                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.38  |   | Patriot Coal Corporation Management Annual Incentive Compensation Plan. (Incorporated by reference to Exhibit 10.19 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                                                                                                                                                                                              |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.39  |   | Form of Non-Qualified Stock Option Agreement under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.2 of the Registrant's Current Report on Form 8-K, filed on October 29, 2007.)                                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.40  |   | Form of Restricted Stock Unit Agreement under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on October 29, 2007.)                                                                                                                                                                                                                                      |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| 10.41  |   | Form of Restricted Stock Award Agreement under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.3 of the Registrant's Current Report on Form 8-K, filed on October 29, 2007.)                                                                                                                                                                                                                                     |

----

| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 10.42  |   | Form of Restricted Stock Award Agreement for use in connection with awards under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on January 4, 2010.)          |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                               |
| 10.43  |   | Form of Restricted Stock Award Agreement for use in connection with awards under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on January 9, 2012.)          |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.44  |   | Form of Deferred Stock Unit Award Agreement under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to Exhibit 10.4 of the Registrant's Current Report on Form 8-K, filed on October 29, 2007.)                                        |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.45  |   | Form of Performance-Based Restricted Stock Units Award Agreement for use in connection with awards under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on January 30, 2009.) |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.46  |   | Form of Non-Qualified Stock Option Agreement for use in connection with awards under the Patriot Coal Corporation 2007 Long-Term Equity Incentive Plan. (Incorporated by reference to the Registrant's Current Report on Form 8-K, filed on January 30, 2009.)                     |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.47  |   | Patriot Coal Corporation Employee Stock Purchase Plan. (Incorporated by reference to Exhibit 10.18 of the Registrant's Current Report on Form 8-K, filed on October 25, 2007.)                                                                                                     |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.48  |   | First Amendment to the Patriot Coal Corporation Employee Stock Purchase Plan. (Incorporated by reference to Exhibit 10.63 of the Registrant's Annual Report on Form 10-K, filed on February 24, 2010.)                                                                             |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.49  |   | Second Amendment to the Patriot Coal Corporation Employee Stock Purchase Plan. (Incorporated by reference to Exhibit 10.64 of the Registrant's Annual Report on Form 10-K, filed on February 24, 2010.)                                                                            |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.50  |   | Third Amendment to the Patriot Coal Corporation Employee Stock Purchase Plan. (Incorporated by reference to Exhibit 10.65 of the Registrant's Annual Report on Form 10-K, filed on February 24, 2010.)                                                                             |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.51  |   | Fourth Amendment to the Patriot Coal Corporation Employee Stock Purchase Plan. (Incorporated by reference to Exhibit 10.59 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                            |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.52  |   | Fifth Amendment to the Patriot Coal Corporation Employee Stock Purchase Plan. (Incorporated by reference to Exhibit 10.60 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                             |
|   |   |                                                                                                                                                                                                                                                                               |
| 10.53  |   | Patriot Coal Corporation 401(k) Retirement Plan, as Amended and Restated. (Incorporated by reference to Exhibit 10.61 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                                 |

----

| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 10.54  |   | Patriot Coal Corporation Supplemental 401(k) Retirement Plan. (Incorporated by reference to Exhibit 10.16 of the Registrant's Current Report on Form 8-K, filed on November 6, 2007.)                                                                                                                                                                        |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 10.55  |   | First Amendment to the Patriot Coal Corporation Supplemental 401(k) Retirement Plan. (Incorporated by reference to Exhibit 10.63 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 10.56  |   | Second Amendment to the Patriot Coal Corporation Supplemental 401(k) Retirement Plan. (Incorporated by reference to Exhibit 10.64 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 10.57  |   | Third Amendment to the Patriot Coal Corporation Supplemental 401(k) Retirement Plan. (Incorporated by reference to Exhibit 10.65 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                                                                                                |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 10.58  |   | Fourth Amendment to the Patriot Coal Corporation Supplemental 401(k) Retirement Plan. (Incorporated by reference to Exhibit 10.66 of the Registrant's Annual Report on Form 10-K, filed on February 25, 2011.)                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 10.59  |   | Consent Decree between Ohio Valley Environmental Coalition, Inc., West Virginia Highlands Conservancy, Inc. and Sierra Club and Patriot Coal Corporation, Apogee Coal Company, LLC, Catenary Coal Company, LLC and Hobet Mining, LLC. (Incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K, filed on January 23, 2012.) |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 10.60  |   | Amendment to Employment Agreement between Patriot Coal Corporation and Bennett K. Hatfield. (Incorporated by reference to Exhibit 10.60 of the Registrant's Annual Report on Form 10-K, filed on February 23, 2012.)                                                                                                                                         |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 21.1   |   | List of Subsidiaries (Incorporated by reference to Exhibit 21.1 of the Registrant's Annual Report on Form 10-K, filed on February 23, 2012.)                                                                                                                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 23.1*  |   | Consent of Independent Registered Accounting Firm dated May 8, 2012                                                                                                                                                                                                                                                                                          |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 23.2** |   | Consent of Independent Registered Accounting Firm dated August 9, 2012                                                                                                                                                                                                                                                                                       |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 31.1** |   | Certification of periodic financial report by Patriot Coal Corporation's Chief Executive Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                 |
|   |   |                                                                                                                                                                                                                                                                                                                                                         |
| 31.2** |   | Certification of periodic financial report by Patriot Coal Corporation's Chief Financial Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.                                                                                                                 |

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| Exhibit No. |   | Description of Exhibit |
|------------------|--------|------------------------|

| 32.1** |   | Certification of periodic financial report pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Patriot Coal Corporation's Chief Executive Officer.                                                                                                                                                                                                                                                                                                                             |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 32.2** |   | Certification of periodic financial report pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by Patriot Coal Corporation's Chief Financial Officer.                                                                                                                                                                                                                                                                                                                             |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 95.1   |   | Mine Safety Disclosure Exhibit (Incorporated by reference to Exhibit 95.1 of the Registrant's Annual Report on Form 10-K, filed on February 23, 2012.)                                                                                                                                                                                                                                                                                                                                                                               |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 99.1   |   | Patriot Coal Corporation Rights Adjustment Certificate dated July 28, 2008. (Incorporated by reference to Exhibit 99.4 of the Registrant's Current Report on Form 8-K, filed on July 28, 2008).                                                                                                                                                                                                                                                                                                                                      |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| 101*** |   | Interactive Data Files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Statements of Operations for the Years Ended December 31, 2011, 2010 and 2009, (ii) the Consolidated Balance Sheets as of December 31, 2011 and 2010, (iii) the Consolidated Statements of Cash Flows for the Years Ended December 31, 2011, 2010 and 2009, (iv) the Consolidated Statements of Changes in Stockholders' Equity for the Years Ended December 31, 2011, 2010 and 2009 and (v) the Notes to the Consolidated Financial Statements. |

| *      |   | Filed with Amendment No. 1 on Form 10-K/A on May 8, 2012.                                                                                                                                                                                                                                                                                                                                                              |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                   |
| **     |   | Filed herewith.                                                                                                                                                                                                                                                                                                                                                                                                        |
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                   |
| ***    |   | Pursuant to Rule 406T of Regulation S-T, the Interactive Data Files on Exhibit 101 hereto are deemed not filed or part of a registration statement or prospectus for purposes of Sections 11 or 12 of the Securities Act of 1933, as amended, are deemed not filed for purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, and otherwise are not subject to liability under those sections. |

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