| Oil, natural gas and natural gas liquids sales | |
| Gains (losses) on oil and natural gas derivatives | |
| Marketing revenues | |
| Other revenues | |
| Total revenues | |
| Lease operating expenses | |
| Transportation expenses | |
| Marketing expenses | |
| General and administrative expenses | |
| Exploration costs | |
| Bad debt expenses | |
| Depreciation, depletion and amortization | |
| Taxes, other than income taxes | |
| (Gains) losses on sale of assets and other, net | |
| Total expenses | |
| Loss on extinguishment of debt | |
| Interest expense, net of amounts capitalized | |
| Losses on interest rate swaps | |
| Other, net | |
| Total other income and (expenses) | |
| Income (loss) before income taxes | |
| Income tax benefit (expense) | |
| Net income (loss) | |
| Basic | |
| Diluted | |
| Basic | |
| Diluted | |
| Distributions declared per unit |