| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| CONSOLIDATED BALANCE SHEETS | | | | | | | | | |
| | | | | | | | | |
| (Unaudited) | | | | | | | | | |
| Dollars in thousands | 31-Dec-25 | | 30-Sep-25 | | 30-Jun-25 | | 31-Mar-25 | | 31-Dec-24 |
| ASSETS | | | | | | | | | |
| Current Assets: | | | | | | | | | |
| Cash and Cash Equivalents | $779 | | $4,735 | | $3,391 | | $2,615 | | $17,198 |
| Restricted Cash | 12,685 | | | 10,168 | | | 10,072 | | | 10,272 | | | 37,875 | |
| Accounts and Notes Receivable: | | | | | | | | | |
| Trade, net | 264,658 | | | 141,264 | | | 180,152 | | | 246,765 | | | 179,547 | |
| Other Receivables, net | 61,249 | | | 56,596 | | | 37,166 | | | 51,560 | | | 17,859 | |
| Supplies Inventories | 26,201 | | | 30,822 | | | 39,318 | | | 27,591 | | | 14,572 | |
| | | | | | | | | |
| Derivative Instruments | 106,068 | | | 100,076 | | | 107,401 | | | 68,860 | | | 87,925 | |
| Prepaid Expenses | 18,697 | | | 17,234 | | | 16,725 | | | 17,767 | | | 15,659 | |
| Total Current Assets | 490,337 | | | 360,895 | | | 394,225 | | | 425,430 | | | 370,635 | |
| Property, Plant and Equipment: | | | | | | | | | |
| Property, Plant and Equipment | 14,057,224 | | | 13,839,517 | | | 13,771,249 | | | 13,667,826 | | | 13,037,948 | |
| Less—Accumulated Depreciation, Depletion and Amortization | 6,193,871 | | | 6,054,758 | | | 5,912,645 | | | 5,771,499 | | | 5,653,837 | |
| Total Property, Plant and Equipment—Net | 7,863,353 | | | 7,784,759 | | | 7,858,604 | | | 7,896,327 | | | 7,384,111 | |
| Other Non-Current Assets: | | | | | | | | | |
| Operating Lease Right-of-Use Assets | 150,310 | | | 167,893 | | | 91,546 | | | 85,666 | | | 98,713 | |
| Derivative Instruments | 134,396 | | | 118,387 | | | 167,561 | | | 165,908 | | | 160,183 | |
| Goodwill | 323,314 | | | 323,314 | | | 323,314 | | | 323,314 | | | 323,314 | |
| Other Intangible Assets | 57,333 | | | 58,971 | | | 60,609 | | | 62,247 | | | 63,885 | |
| | | | | | | | | |
| Restricted Cash | — | | | 2,430 | | | 2,428 | | | — | | | — | |
| Other | 75,403 | | | 87,469 | | | 89,580 | | | 87,817 | | | 111,062 | |
| Total Other Non-Current Assets | 740,756 | | | 758,464 | | | 735,038 | | | 724,952 | | | 757,157 | |
| TOTAL ASSETS | $9,094,446 | | $8,904,118 | | $8,987,867 | | $9,046,709 | | $8,511,903 |
| LIABILITIES AND EQUITY | | | | | | | | | |
| Current Liabilities: | | | | | | | | | |
| Accounts Payable | $158,811 | | $110,649 | | $120,019 | | $144,376 | | $123,249 |
| Derivative Instruments | 377,945 | | | 316,729 | | | 403,112 | | | 770,980 | | | 354,621 | |
| Current Portion of Finance Lease Obligations | 5,095 | | | 5,080 | | | 4,338 | | | 4,335 | | | 4,236 | |
| Current Portion of Long-Term Debt | 208,095 | | | 329,378 | | | 328,837 | | | 328,300 | | | 327,766 | |
| Current Portion of Operating Lease Obligations | 48,453 | | | 48,140 | | | 47,819 | | | 50,082 | | | 51,474 | |
| Other Accrued Liabilities | 325,976 | | | 255,313 | | | 293,558 | | | 284,820 | | | 261,232 | |
| Total Current Liabilities | 1,124,375 | | | 1,065,289 | | | 1,197,683 | | | 1,582,893 | | | 1,122,578 | |
| Non-Current Liabilities: | | | | | | | | | |
| Long-Term Debt | 2,213,264 | | | 2,247,199 | | | 2,286,855 | | | 2,353,350 | | | 1,838,234 | |
| Finance Lease Obligations | 24,991 | | | 26,209 | | | 19,229 | | | 20,304 | | | 21,040 | |
| Operating Lease Obligations | 104,955 | | | 122,477 | | | 46,424 | | | 37,834 | | | 49,519 | |
| Derivative Instruments | 158,368 | | | 251,206 | | | 342,613 | | | 439,769 | | | 429,533 | |
| Deferred Income Taxes | 857,367 | | | 836,354 | | | 761,490 | | | 604,526 | | | 696,136 | |
| Asset Retirement Obligations | 163,051 | | | 124,460 | | | 125,504 | | | 124,253 | | | 119,189 | |
| Other | 111,059 | | | 115,351 | | | 115,356 | | | 113,006 | | | 137,644 | |
| Total Non-Current Liabilities | 3,633,055 | | | 3,723,256 | | | 3,697,471 | | | 3,693,042 | | | 3,291,295 | |
| TOTAL LIABILITIES | 4,757,430 | | | 4,788,545 | | | 4,895,154 | | | 5,275,935 | | | 4,413,873 | |
| Stockholders' Equity: | | | | | | | | | |
| Common Stock | 1,427 | | | 1,360 | | | 1,420 | | | 1,456 | | | 1,490 | |
| Capital in Excess of Par Value | 2,357,039 | | | 2,254,021 | | | 2,298,970 | | | 2,324,116 | | | 2,348,959 | |
| Preferred Stock | — | | | — | | | — | | | — | | | — | |
| Retained Earnings | 1,984,229 | | | 1,865,695 | | | 1,797,896 | | | 1,450,844 | | | 1,753,293 | |
| Accumulated Other Comprehensive Loss | (5,679) | | | (5,503) | | | (5,573) | | | (5,642) | | | (5,712) | |
| | | | | | | | | |
| | | | | | | | | |
| TOTAL STOCKHOLDERS' EQUITY | 4,337,016 | | | 4,115,573 | | | 4,092,713 | | | 3,770,774 | | | 4,098,030 | |
| TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY | $9,094,446 | | $8,904,118 | | $8,987,867 | | $9,046,709 | | $8,511,903 |