| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 2,038a | 956a |
| Restricted cash | 239a | 9a |
| Accounts receivable, net | 951a | 843a |
| Income taxes receivable | 20a | 51a |
| Inventories | 46a | 59a |
| Other current assets | 27a | 97a |
| Total current assets | 3,321a | 2,015a |
| Properties and equipment, net (successful efforts method) | 17,890a | 17,933a |
| Other assets | 414a | 467a |
| Current liabilities | — | — |
| Accounts payable | 833a | 803a |
| Current portion of long-term debt | 0a | 575a |
| Accrued liabilities | 276a | 261a |
| Interest payable | 27a | 21a |
| Total current liabilities | 1,136a | 1,660a |
| Long-term debt | 3,535a | 1,586a |
| Deferred income taxes | 3,274a | 3,413a |
| Asset retirement obligations | 291a | 280a |
| Other liabilities | 259a | 429a |
| Total liabilities | 8,495a | 7,368a |
| Redeemable preferred stock | 8a | 8a |
| Stockholders' equity | — | — |
| Common stock | 74a | 75a |
| Additional paid-in capital | 7,179a | 7,587a |
| Retained earnings | 5,857a | 5,366a |
| Accumulated other comprehensive income | 12a | 11a |
| Total stockholders' equity | 13,122a | 13,039a |