| (1)  | Kerr-McGee                Performance Share PlanKerr-McGee                Corporation Executive Deferred Compensation Plan                                                                                                                                                                                                                                                                                     | Form                S-8 | File                No. 333-66436  |
|------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------------|------------------------------------|
| (2)  | Oryx                Energy Company 1997 Long Term Incentive PlanOryx                Energy Company Executive Variable Incentive PlanOryx                Energy Company Equity and Deferred Compensation Plan for Non-Employee                Directors                                                                                                                                                         | Form                S-8 | File                No. 333-66438  |
| (3)  | Kerr-McGee                Corporation Savings Investment PlanKerr-McGee                Corporation Employee Stock Ownership PlanHS                Resources, Inc. Employee Investment 401(k) and Profit Sharing                Plan                                                                                                                                                                            | Form                S-8 | File                No. 333-66440  |
| (4)  | Kerr-McGee                Corporation Long Term Incentive ProgramKerr-McGee                Corporation 1998 Long Term Incentive PlanKerr-McGee                Corporation 2000 Long Term Incentive Plan                                                                                                                                                                                                        | Form                S-8 | File                No. 333-66442  |
| (5)  | Kerr-McGee                Corporation 2002 Long Term Incentive Plan                                                                                                                                                                                                                                                                                                                                            | Form                S-8 | File                No. 333-89558  |
| (6)  | Oryx                Energy Company 1997 Long Term Incentive PlanOryx                Energy Company Executive Variable Incentive PlanOryx                Energy Company Equity and Deferred Compensation Plan for Non-Employee                Directors                                                                                                                                                         | Form                S-8 | File                No. 333-41008  |
| (7)  | Kerr-McGee                Corporation 2000 Long Term Incentive Plan                                                                                                                                                                                                                                                                                                                                            | Form                S-8 | File                No. 333-41006  |
| (8)  | Kerr-McGee                Corporation Executive Deferred Compensation Plan                                                                                                                                                                                                                                                                                                                                     | Form                S-8 | File                No. 333-41000  |
| (9)  | Kerr-McGee                Corporation 1998 Long Term Incentive Plan                                                                                                                                                                                                                                                                                                                                            | Form                S-8 | File                No. 333-39222  |
| (10) | Kerr-McGee                Corporation Performance Share Plan                                                                                                                                                                                                                                                                                                                                                   | Form                S-8 | File                No. 333-92865  |
| (11) | Kerr-McGee                Corporation Long Term Incentive Program                                                                                                                                                                                                                                                                                                                                              | Form                S-8 | File                No. 333-05999  |
| (12) | Kerr-McGee                Corporation Long Term Incentive Program                                                                                                                                                                                                                                                                                                                                              | Form                S-8 | File                No. 33-50949   |
| (13) | Kerr-McGee                Corporation Long Term Incentive Program                                                                                                                                                                                                                                                                                                                                              | Form                S-8 | File                No. 33-24274   |
| (14) | Westport                Resources Corporation 2000 Stock Incentive PlanWestport                Resources Corporation 2000 Directors’ Stock Option PlanWestport                Resources Corporation 2000 Stock Option PlanBelco                Oil & Gas Corp. 1996 Non-Employee Directors’ Stock Option                PlanBelco                Oil & Gas Corp. 1996 Stock Incentive Plan | Form                S-8 | File                No. 333-116950 |
| (15) | Kerr-McGee                Corporation 2005 Long Term Incentive Plan                                                                                                                                                                                                                                                                                                                                            | Form                S-8 | File                No. 333-126857 |
| (16) | Kerr-McGee                Corporation                                                                                                                                                                                                                                                                                                                                                                          | Form                S-3 | File                No. 333-81720  |
| (17) | Kerr-McGee                CorporationKerr-McGee                Operating CorporationHS                Resources, Inc.                                                                                                                                                                                                                                                                                          | Form                S-3 | File                No. 333-68136  |
| (18) | Kerr-McGee                Corporation                                                                                                                                                                                                                                                                                                                                                                          | Form                S-3 | File                No. 333-115935 |