XML 46 R35.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Condensed Consolidating Financial Information (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2016
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |
Condensed Consolidating Balance Sheets | CONDENSED CONSOLIDATING BALANCE SHEETS (Amounts in thousands)
| June 30, 2016
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 395,703 |  |  | $ | 733 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 396,437 |
Accounts receivable - oil and gas | 90,758 |  |  | 7,721 |  |  | — |  |  | (7,017 | ) |  | 91,462 |
Accounts receivable - related parties | 23 |  |  | — |  |  | — |  |  | — |  |  | 23 |
Accounts receivable - intercompany | 355,924 |  |  | 1,904 |  |  | — |  |  | (357,828 | ) |  | — |
Prepaid expenses and other current assets | 7,782 |  |  | — |  |  | — |  |  | — |  |  | 7,782 |
Short-term derivative instruments | 44,672 |  |  | — |  |  | — |  |  | — |  |  | 44,672 |
Deferred tax asset | 292 |  |  | — |  |  | — |  |  | — |  |  | 292 |
Total current assets | 895,154 |  |  | 10,358 |  |  | 1 |  |  | (364,845 | ) |  | 540,668 |
Property and equipment: |  |  |  |  |  |  |  |  |
Oil and natural gas properties, full-cost accounting | 5,334,096 |  |  | 352,821 |  |  | — |  |  | (729 | ) |  | 5,686,188 |
Other property and equipment | 48,064 |  |  | 43 |  |  | — |  |  | — |  |  | 48,107 |
Accumulated depletion, depreciation, amortization and impairment | (3,339,056 | ) |  | (31 | ) |  | — |  |  | — |  |  | (3,339,087 | )
Property and equipment, net | 2,043,104 |  |  | 352,833 |  |  | — |  |  | (729 | ) |  | 2,395,208 |
Other assets: |  |  |  |  |  |  |  |  |
Equity investments | 242,627 |  |  | 25,441 |  |  | 49,557 |  |  | (64,578 | ) |  | 253,047 |
Long-term derivative instruments | 14,644 |  |  | — |  |  | — |  |  | — |  |  | 14,644 |
Deferred tax asset | 24,284 |  |  | — |  |  | — |  |  | — |  |  | 24,284 |
Other assets | 11,336 |  |  | — |  |  | — |  |  | — |  |  | 11,336 |
Total other assets | 292,891 |  |  | 25,441 |  |  | 49,557 |  |  | (64,578 | ) |  | 303,311 |
Total assets | $ | 3,231,149 |  |  | $ | 388,632 |  |  | $ | 49,558 |  |  | $ | (430,152 | ) |  | $ | 3,239,187 |
Liabilities and Stockholders' Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | $ | 281,712 |  |  | $ | 16,768 |  |  | $ | — |  |  | $ | (8,730 | ) |  | $ | 289,750 |
Accounts payable - intercompany | — |  |  | 355,991 |  |  | 125 |  |  | (356,116 | ) |  | — |
Asset retirement obligation - current | 75 |  |  | — |  |  | — |  |  | — |  |  | 75 |
Short-term derivative instruments | 49,906 |  |  | — |  |  | — |  |  | — |  |  | 49,906 |
Total current liabilities | 331,693 |  |  | 372,759 |  |  | 125 |  |  | (364,846 | ) |  | 339,731 |
Long-term derivative instrument | 29,269 |  |  | — |  |  | — |  |  | — |  |  | 29,269 |
Asset retirement obligation - long-term | 29,993 |  |  | — |  |  | — |  |  | — |  |  | 29,993 |
Long-term debt | 956,754 |  |  | — |  |  | — |  |  | — |  |  | 956,754 |
Total liabilities | 1,347,709 |  |  | 372,759 |  |  | 125 |  |  | (364,846 | ) |  | 1,355,747 |
Stockholders' equity: |  |  |  |  |  |  |  |  |
Common stock | 1,253 |  |  | — |  |  | — |  |  | — |  |  | 1,253 |
Paid-in capital | 3,242,404 |  |  | 25,822 |  |  | 255,244 |  |  | (281,066 | ) |  | 3,242,404 |
Accumulated other comprehensive (loss) income | (46,803 | ) |  | — |  |  | (45,507 | ) |  | 45,507 |  |  | (46,803 | )
Retained (deficit) earnings | (1,313,414 | ) |  | (9,949 | ) |  | (160,304 | ) |  | 170,253 |  |  | (1,313,414 | )
Total stockholders' equity | 1,883,440 |  |  | 15,873 |  |  | 49,433 |  |  | (65,306 | ) |  | 1,883,440 |
Total liabilities and stockholders' equity | $ | 3,231,149 |  |  | $ | 388,632 |  |  | $ | 49,558 |  |  | $ | (430,152 | ) |  | $ | 3,239,187 |
CONDENSED CONSOLIDATING BALANCE SHEETS (Amounts in thousands)
| December 31, 2015
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 112,494 |  |  | $ | 479 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 112,974 |
Accounts receivable - oil and gas | 72,241 |  |  | 54 |  |  | — |  |  | (423 | ) |  | 71,872 |
Accounts receivable - related parties | 16 |  |  | — |  |  | — |  |  | — |  |  | 16 |
Accounts receivable - intercompany | 326,475 |  |  | 60 |  |  | — |  |  | (326,535 | ) |  | — |
Prepaid expenses and other current assets | 3,905 |  |  | — |  |  | — |  |  | — |  |  | 3,905 |
Short-term derivative instruments | 142,794 |  |  | — |  |  | — |  |  | — |  |  | 142,794 |
Total current assets | 657,925 |  |  | 593 |  |  | 1 |  |  | (326,958 | ) |  | 331,561 |
Property and equipment: |  |  |  |  |  |  |  |  |
Oil and natural gas properties, full-cost accounting, | 5,108,258 |  |  | 316,813 |  |  | — |  |  | (729 | ) |  | 5,424,342 |
Other property and equipment | 33,128 |  |  | 43 |  |  | — |  |  | — |  |  | 33,171 |
Accumulated depletion, depreciation, amortization and impairment | (2,829,081 | ) |  | (29 | ) |  | — |  |  | — |  |  | (2,829,110 | )
Property and equipment, net | 2,312,305 |  |  | 316,827 |  |  | — |  |  | (729 | ) |  | 2,628,403 |
Other assets: |  |  |  |  |  |  |  |  |
Equity investments | 231,892 |  |  | — |  |  | 50,644 |  |  | (40,143 | ) |  | 242,393 |
Long-term derivative instruments | 51,088 |  |  | — |  |  | — |  |  | — |  |  | 51,088 |
Deferred tax assets | 74,925 |  |  | — |  |  | — |  |  | — |  |  | 74,925 |
Other assets | 6,364 |  |  | — |  |  | — |  |  | — |  |  | 6,364 |
Total other assets | 364,269 |  |  | — |  |  | 50,644 |  |  | (40,143 | ) |  | 374,770 |
Total assets | $ | 3,334,499 |  |  | $ | 317,420 |  |  | $ | 50,645 |  |  | $ | (367,830 | ) |  | $ | 3,334,734 |
Liabilities and Stockholders' Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | $ | 264,893 |  |  | $ | 527 |  |  | $ | — |  |  | $ | (292 | ) |  | $ | 265,128 |
Accounts payable - intercompany |  |  |  | 326,541 |  |  | 124 |  |  | (326,665 | ) |  | — |
Asset retirement obligation - current | 75 |  |  | — |  | — |  | — |  |  | — |  |  | 75 |
Short-term derivative instruments | 437 |  |  | — |  |  | — |  |  | — |  |  | 437 |
Deferred tax liability | 50,697 |  |  | — |  |  | — |  |  | — |  |  | 50,697 |
Current maturities of long-term debt | 179 |  |  | — |  |  | — |  |  | — |  |  | 179 |
Total current liabilities | 316,281 |  |  | 327,068 |  |  | 124 |  |  | (326,957 | ) |  | 316,516 |
Long-term derivative instrument | 6,935 |  |  | — |  |  | — |  |  | — |  |  | 6,935 |
Asset retirement obligation - long-term | 26,362 |  |  | — |  |  | — |  |  | — |  |  | 26,362 |
Long-term debt, net of current maturities | 946,084 |  |  | — |  |  | — |  |  | — |  |  | 946,084 |
Total liabilities | 1,295,662 |  |  | 327,068 |  |  | 124 |  |  | (326,957 | ) |  | 1,295,897 |
Stockholders' equity: |  |  |  |  |  |  |  |  |
Common stock | 1,082 |  |  | — |  |  | — |  |  | — |  |  | 1,082 |
Paid-in capital | 2,824,303 |  |  | 322 |  |  | 241,553 |  |  | (241,875 | ) |  | 2,824,303 |
Accumulated other comprehensive (loss) income | (55,177 | ) |  | — |  |  | (55,177 | ) |  | 55,177 |  |  | (55,177 | )
Retained (deficit) earnings | (731,371 | ) |  | (9,970 | ) |  | (135,855 | ) |  | 145,825 |  |  | (731,371 | )
Total stockholders' equity | 2,038,837 |  |  | (9,648 | ) |  | 50,521 |  |  | (40,873 | ) |  | 2,038,837 |
Total liabilities and stockholders' equity | $ | 3,334,499 |  |  | $ | 317,420 |  |  | $ | 50,645 |  |  | $ | (367,830 | ) |  | $ | 3,334,734 |
Condensed Consolidating Statements of Operations | CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts in thousands)
| Three months ended June 30, 2016
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | (28,580 | ) |  | $ | 428 |  |  | $ | — |  |  | $ | — |  |  | $ | (28,152 | )
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 14,491 |  |  | 170 |  |  | — |  |  | — |  |  | 14,661 |
Production taxes | 2,828 |  |  | 28 |  |  | — |  |  | — |  |  | 2,856 |
Midstream gathering and processing | 39,242 |  |  | 107 |  |  | — |  |  | — |  |  | 39,349 |
Depreciation, depletion, and amortization | 55,651 |  |  | 1 |  |  | — |  |  | — |  |  | 55,652 |
Impairment of oil and gas properties | 170,621 |  |  | — |  |  | — |  |  | — |  |  | 170,621 |
General and administrative | 11,846 |  |  | 8 |  |  | — |  |  | — |  |  | 11,854 |
Accretion expense | 261 |  |  | — |  |  | — |  |  | — |  |  | 261 |
| 294,940 |  |  | 314 |  |  | — |  |  | — |  |  | 295,254 |
(LOSS) INCOME FROM OPERATIONS | (323,520 | ) |  | 114 |  |  | — |  |  | — |  |  | (323,406 | )
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 16,082 |  |  | — |  |  | — |  |  | — |  |  | 16,082 |
Interest income | (391 | ) |  | — |  |  | — |  |  | — |  |  | (391 | )
Loss (income) from equity method investments and investments in subsidiaries | 722 |  |  | 59 |  |  | 762 |  |  | (707 | ) |  | 836 |
| 16,413 |  |  | 59 |  |  | 762 |  |  | (707 | ) |  | 16,527 |
(LOSS) INCOME BEFORE INCOME TAXES | (339,933 | ) |  | 55 |  |  | (762 | ) |  | 707 |  |  | (339,933 | )
INCOME TAX BENEFIT | (157 | ) |  | — |  |  | — |  |  | — |  |  | (157 | )
NET (LOSS) INCOME | $ | (339,776 | ) |  | $ | 55 |  |  | $ | (762 | ) |  | $ | 707 |  |  | $ | (339,776 | )
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts in thousands)
| Three months ended June 30, 2015
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 112,027 |  |  | $ | 243 |  |  | $ | — |  |  | $ | — |  |  | $ | 112,270 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 16,685 |  |  | 178 |  |  | — |  |  | — |  |  | 16,863 |
Production taxes | 3,260 |  |  | 25 |  |  | — |  |  | — |  |  | 3,285 |
Midstream gathering and processing | 32,892 |  |  | 12 |  |  | — |  |  | — |  |  | 32,904 |
Depreciation, depletion, and amortization | 71,154 |  |  | 1 |  |  | — |  |  | — |  |  | 71,155 |
General and administrative | 9,488 |  |  | 5 |  |  | 22 |  |  | — |  |  | 9,515 |
Accretion expense | 192 |  |  | — |  |  | — |  |  | — |  |  | 192 |
| 133,671 |  |  | 221 |  |  | 22 |  |  | — |  |  | 133,914 |
(LOSS) INCOME FROM OPERATIONS | (21,644 | ) |  | 22 |  |  | (22 | ) |  | — |  |  | (21,644 | )
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 12,023 |  |  | — |  |  | — |  |  | — |  |  | 12,023 |
Interest income | (248 | ) |  | — |  |  | — |  |  | — |  |  | (248 | )
Loss (income) from equity method investments and investments in subsidiaries | 15,120 |  |  | — |  |  | 8,494 |  |  | (8,494 | ) |  | 15,120 |
| 26,895 |  |  | — |  |  | 8,494 |  |  | (8,494 | ) |  | 26,895 |
(LOSS) INCOME BEFORE INCOME TAXES | (48,539 | ) |  | 22 |  |  | (8,516 | ) |  | 8,494 |  |  | (48,539 | )
INCOME TAX BENEFIT | (17,214 | ) |  | — |  |  | — |  |  | — |  |  | (17,214 | )
NET (LOSS) INCOME | $ | (31,325 | ) |  | $ | 22 |  |  | $ | (8,516 | ) |  | $ | 8,494 |  |  | $ | (31,325 | )
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts in thousands)
| Six months ended June 30, 2016
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 128,171 |  |  | $ | 640 |  |  | $ | — |  |  | $ | — |  |  | $ | 128,811 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 30,963 |  |  | 355 |  |  | — |  |  | — |  |  | 31,318 |
Production taxes | 5,915 |  |  | 52 |  |  | — |  |  | — |  |  | 5,967 |
Midstream gathering and processing | 76,865 |  |  | 136 |  |  | — |  |  | — |  |  | 77,001 |
Depreciation, depletion, and amortization | 121,127 |  |  | 2 |  |  |  |  |  |  |  |  | 121,129 |
Impairment of oil and gas properties | 389,612 |  |  | — |  |  | — |  |  | — |  |  | 389,612 |
General and administrative | 22,458 |  |  | 14 |  |  | 2 |  |  | — |  |  | 22,474 |
Accretion expense | 508 |  |  | — |  |  | — |  |  | — |  |  | 508 |
| 647,448 |  |  | 559 |  |  | 2 |  |  | — |  |  | 648,009 |
(LOSS) INCOME FROM OPERATIONS | (519,277 | ) |  | 81 |  |  | (2 | ) |  | — |  |  | (519,198 | )
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 32,104 |  |  | 1 |  |  | — |  |  | — |  |  | 32,105 |
Interest income | (485 | ) |  | — |  |  | — |  |  | — |  |  | (485 | )
Loss (income) from equity method investments and investments in subsidiaries | 31,495 |  |  | 59 |  |  | 24,447 |  |  | (24,428 | ) |  | 31,573 |
| 63,114 |  |  | 60 |  |  | 24,447 |  |  | (24,428 | ) |  | 63,193 |
(LOSS) INCOME BEFORE INCOME TAXES | (582,391 | ) |  | 21 |  |  | (24,449 | ) |  | 24,428 |  |  | (582,391 | )
INCOME TAX BENEFIT | (348 | ) |  | — |  |  | — |  |  | — |  |  | (348 | )
NET (LOSS) INCOME | $ | (582,043 | ) |  | $ | 21 |  |  | $ | (24,449 | ) |  | $ | 24,428 |  |  | $ | (582,043 | )
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts in thousands)
| Six months ended June 30, 2015
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 287,859 |  |  | $ | 728 |  |  | $ | — |  |  | $ | — |  |  | $ | 288,587 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 33,472 |  |  | 371 |  |  | — |  |  | — |  |  | 33,843 |
Production taxes | 7,513 |  |  | 57 |  |  | — |  |  | — |  |  | 7,570 |
Midstream gathering and processing | 58,266 |  |  | 19 |  |  | — |  |  | — |  |  | 58,285 |
Depreciation, depletion, and amortization | 161,062 |  |  | 2 |  |  | — |  |  | — |  |  | 161,064 |
General and administrative | 20,249 |  |  | 41 |  |  | 24 |  |  | — |  |  | 20,314 |
Accretion expense | 382 |  |  | — |  |  | — |  |  | — |  |  | 382 |
| 280,944 |  |  | 490 |  |  | 24 |  |  | — |  |  | 281,458 |
INCOME (LOSS) FROM OPERATIONS | 6,915 |  |  | 238 |  |  | (24 | ) |  | — |  |  | 7,129 |
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 20,782 |  |  | — |  |  | — |  |  | — |  |  | 20,782 |
Interest income | (257 | ) |  | — |  |  | — |  |  | — |  |  | (257 | )
(Income) loss from equity method investments and investments in subsidiaries | (5,069 | ) |  | — |  |  | 12,636 |  |  | (12,422 | ) |  | (4,855 | )
| 15,456 |  |  | — |  |  | 12,636 |  |  | (12,422 | ) |  | 15,670 |
(LOSS) INCOME BEFORE INCOME TAXES | (8,541 | ) |  | 238 |  |  | (12,660 | ) |  | 12,422 |  |  | (8,541 | )
INCOME TAX BENEFIT | (2,735 | ) |  | — |  |  | — |  |  | — |  |  | (2,735 | )
NET (LOSS) INCOME | $ | (5,806 | ) |  | $ | 238 |  |  | $ | (12,660 | ) |  | $ | 12,422 |  |  | $ | (5,806 | )
Condensed Consolidating Statements of Comprehensive Income (Loss) | CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Amounts in thousands)
| Three months ended June 30, 2016
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net (loss) income | $ | (339,776 | ) |  | $ | 55 |  |  | $ | (762 | ) |  | $ | 707 |  |  | $ | (339,776 | )
Foreign currency translation adjustment | (684 | ) |  | — |  |  | (604 | ) |  | 604 |  |  | (684 | )
Other comprehensive (loss) income | (684 | ) |  | — |  |  | (604 | ) |  | 604 |  |  | (684 | )
Comprehensive (loss) income | $ | (340,460 | ) |  | $ | 55 |  |  | $ | (1,366 | ) |  | $ | 1,311 |  |  | $ | (340,460 | )
| Three months ended June 30, 2015
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net (loss) income | $ | (31,325 | ) |  | $ | 22 |  |  | $ | (8,516 | ) |  | $ | 8,494 |  |  | $ | (31,325 | )
Foreign currency translation adjustment | 3,247 |  |  | — |  |  | 3,247 |  |  | (3,247 | ) |  | 3,247 |
Other comprehensive income (loss) | 3,247 |  |  | — |  |  | 3,247 |  |  | (3,247 | ) |  | 3,247 |
Comprehensive (loss) income | $ | (28,078 | ) |  | $ | 22 |  |  | $ | (5,269 | ) |  | $ | 5,247 |  |  | $ | (28,078 | )
| Six months ended June 30, 2016
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net (loss) income | $ | (582,043 | ) |  | $ | 21 |  |  | $ | (24,449 | ) |  | $ | 24,428 |  |  | $ | (582,043 | )
Foreign currency translation adjustment | 8,374 |  |  | — |  |  | 9,669 |  |  | (9,669 | ) |  | 8,374 |
Other comprehensive income (loss) | 8,374 |  |  | — |  |  | 9,669 |  |  | (9,669 | ) |  | 8,374 |
Comprehensive (loss) income | $ | (573,669 | ) |  | $ | 21 |  |  | $ | (14,780 | ) |  | $ | 14,759 |  |  | $ | (573,669 | )
| Six months ended June 30, 2015
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net (loss) income | $ | (5,806 | ) |  | $ | 238 |  |  | $ | (12,660 | ) |  | $ | 12,422 |  |  | $ | (5,806 | )
Foreign currency translation adjustment | (11,737 | ) |  | — |  |  | (11,737 | ) |  | 11,737 |  |  | (11,737 | )
Other comprehensive (loss) income | (11,737 | ) |  | — |  |  | (11,737 | ) |  | 11,737 |  |  | (11,737 | )
Comprehensive (loss) income | $ | (17,543 | ) |  | $ | 238 |  |  | $ | (24,397 | ) |  | $ | 24,159 |  |  | $ | (17,543 | )
Condensed Consolidating Statements of Cash Flows | CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Amounts in thousands)
| Six months ended June 30, 2016
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by operating activities | $ | 142,470 |  |  | $ | 254 |  |  | $ | — |  |  | $ | — |  |  | $ | 142,724 |
Net cash (used in) provided by investing activities | (281,044 | ) |  | (25,500 | ) |  | (13,690 | ) |  | 39,190 |  |  | (281,044 | )
Net cash provided by (used in) financing activities | 421,783 |  |  | 25,500 |  |  | 13,690 |  |  | (39,190 | ) |  | 421,783 |
Net increase in cash and cash equivalents | 283,209 |  |  | 254 |  |  | — |  |  | — |  |  | 283,463 |
Cash and cash equivalents at beginning of period | 112,494 |  |  | 479 |  |  | 1 |  |  | — |  |  | 112,974 |
Cash and cash equivalents at end of period | $ | 395,703 |  |  | $ | 733 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 396,437 |
| Six months ended June 30, 2015
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by (used in) operating activities | $ | 135,485 |  |  | $ | 3,389 |  |  | $ | (1 | ) |  | $ | 1 |  |  | $ | 138,874 |
Net cash (used in) provided by investing activities | (976,820 | ) |  | (2,946 | ) |  | (8,267 | ) |  | 8,267 |  |  | (979,766 | )
Net cash provided by (used in) financing activities | 1,224,040 |  |  | — |  |  | 8,268 |  |  | (8,268 | ) |  | 1,224,040 |
Net increase in cash and cash equivalents | 382,705 |  |  | 443 |  |  | — |  |  | — |  |  | 383,148 |
Cash and cash equivalents at beginning of period | 141,535 |  |  | 804 |  |  | 1 |  |  | — |  |  | 142,340 |
Cash and cash equivalents at end of period | $ | 524,240 |  |  | $ | 1,247 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 525,488 |

X
- Definition Schedule of Condensed Comprehensive Income [Table Text Block] + References No definition available. + Details
Name: | gpor_ScheduleofCondensedComprehensiveIncomeTableTextBlock
Namespace Prefix: | gpor_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CondensedFinancialInformationOfParentCompanyOnlyDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCondensedBalanceSheetTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of condensed income statement, including, but not limited to, income statements of consolidated entities and consolidation eliminations. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCondensedIncomeStatementTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration