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Condensed Consolidating Financial Statements | 3 Months Ended | 12 Months Ended
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Mar. 31, 2013 | Dec. 31, 2012
Condensed Financial Information of Parent Company Only Disclosure [Abstract] |  |
Condensed Consolidating Financial Statements | CONDENSED CONSOLIDATING FINANCIAL INFORMATION Shown below are condensed consolidating financial statements for Gulfport Energy Corporation on a stand-alone unconsolidated basis, its combined guarantor subsidiaries and its non-guarantor subsidiary as of March 31, 2013 and for the three months ending March 31, 2013 and 2012. The financial information may not necessarily be indicative or results of operations, cash flows or financial position had the subsidiaries operated as independent entities. CONDENSED CONSOLIDATING BALANCE SHEETS (Amounts in thousands)
| March 31, 2013
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 225,269 |  |  | $ | 710 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 225,980 |
Accounts receivable - oil and gas | 21,495 |  |  | 528 |  |  | — |  |  | — |  |  | 22,023 |
Accounts receivable - related parties | 35,031 |  |  | 2,031 |  |  | — |  |  | — |  |  | 37,062 |
Accounts receivable - intercompany | 15,604 |  |  | — |  |  | — |  |  | (15,604 | ) |  | — |
Prepaid expenses and other current assets | 1,435 |  |  | — |  |  | — |  |  | — |  |  | 1,435 |
Short-term derivative instruments | 343 |  |  | — |  |  | — |  |  | — |  |  | 343 |
Total current assets | 299,177 |  |  | 3,269 |  |  | 1 |  |  | (15,604 | ) |  | 286,843 |
Property and equipment: |  |  |  |  |  |  |  |  |
Oil and natural gas properties, full-cost accounting, | 1,927,051 |  |  | 5,368 |  |  | — |  |  | — |  |  | 1,932,419 |
Other property and equipment | 8,897 |  |  | 27 |  |  | — |  |  | — |  |  | 8,924 |
Accumulated depletion, depreciation, amortization and impairment | (688,447 | ) |  | (20 | ) |  | — |  |  | — |  |  | (688,467 | )
Property and equipment, net | 1,247,501 |  |  | 5,375 |  |  | — |  |  | — |  |  | 1,252,876 |
Other assets: |  |  |  |  |  |  |  |  |
Equity investments and investments in subsidiaries | 444,422 |  |  | — |  |  | 176,196 |  |  | (169,026 | ) |  | 451,592 |
Other assets | 13,159 |  |  | — |  |  | — |  |  | — |  |  | 13,159 |
Total other assets | 457,581 |  |  | — |  |  | 176,196 |  |  | (169,026 | ) |  | 464,751 |
Total assets | $ | 2,004,259 |  |  | $ | 8,644 |  |  | $ | 176,197 |  |  | $ | (184,630 | ) |  | $ | 2,004,470 |
Liabilities and Stockholders' Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | $ | 109,566 |  |  | $ | 211 |  |  | $ | — |  |  | $ | — |  |  | $ | 109,777 |
Accounts payable - intercompany | — |  |  | 15,495 |  |  | 109 |  |  | (15,604 | ) |  | — |
Asset retirement obligation - current | 780 |  |  | — |  |  | — |  |  | — |  |  | 780 |
Short-term derivative instruments | 9,689 |  |  | — |  |  | — |  |  | — |  |  | 9,689 |
Deferred tax liability | 158 |  |  | — |  |  | — |  |  | — |  |  | 158 |
Current maturities of long-term debt | 152 |  |  | — |  |  | — |  |  | — |  |  | 152 |
Total current liabilities | 120,345 |  |  | 15,706 |  |  | 109 |  |  | (15,604 | ) |  | 120,556 |
Asset retirement obligation - long-term | 12,560 |  |  | — |  |  | — |  |  | — |  |  | 12,560 |
Deferred tax liability | 45,382 |  |  | — |  |  | — |  |  | — |  |  | 45,382 |
Long-term debt, net of current maturities | 298,921 |  |  | — |  |  | — |  |  | — |  |  | 298,921 |
Other non-current liabilities | 142 |  |  | — |  |  | — |  |  | — |  |  | 142 |
Total liabilities | 477,350 |  |  | 15,706 |  |  | 109 |  |  | (15,604 | ) |  | 477,561 |
Stockholders' equity: |  |  |  |  |  |  |  |  |
Common stock | 773 |  |  | — |  |  | — |  |  | — |  |  | 773 |
Paid-in capital | 1,395,288 |  |  | 322 |  |  | 181,878 |  |  | (182,200 | ) |  | 1,395,288 |
Accumulated other comprehensive income (loss) | (6,629 | ) |  | — |  |  | (1,125 | ) |  | 1,125 |  |  | (6,629 | )
Retained earnings (accumulated deficit) | 137,477 |  |  | (7,384 | ) |  | (4,665 | ) |  | 12,049 |  |  | 137,477 |
Total stockholders' equity | 1,526,909 |  |  | (7,062 | ) |  | 176,088 |  |  | (169,026 | ) |  | 1,526,909 |
Total liabilities and stockholders' equity | $ | 2,004,259 |  |  | $ | 8,644 |  |  | $ | 176,197 |  |  | $ | (184,630 | ) |  | $ | 2,004,470 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts in thousands)
| Three Months Ended March 31, 2013
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 54,662 |  |  | $ | 338 |  |  | $ | — |  |  | $ | — |  |  | $ | 55,000 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 4,998 |  |  | 174 |  |  | — |  |  | — |  |  | 5,172 |
Production taxes | 7,261 |  |  | 26 |  |  | — |  |  | — |  |  | 7,287 |
Depreciation, depletion, and amortization | 22,583 |  |  | — |  |  | — |  |  | — |  |  | 22,583 |
General and administrative | 4,378 |  |  | 34 |  |  | — |  |  | — |  |  | 4,412 |
Accretion expense | 175 |  |  | — |  |  | — |  |  | — |  |  | 175 |
Loss on sale of assets | 427 |  |  | — |  |  | — |  |  | — |  |  | 427 |
| 39,822 |  |  | 234 |  |  | — |  |  | — |  |  | 40,056 |
INCOME (LOSS) FROM OPERATIONS | 14,840 |  |  | 104 |  |  | — |  |  | — |  |  | 14,944 |
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 3,479 |  |  | — |  |  | — |  |  | — |  |  | 3,479 |
Interest income | (79 | ) |  | — |  |  | — |  |  | — |  |  | (79 | )
(Income) loss from equity method investments and investments in subsidiaries | (61,314 | ) |  | — |  |  | 532 |  |  | (428 | ) |  | (61,210 | )
| (57,914 | ) |  | — |  |  | 532 |  |  | (428 | ) |  | (57,810 | )
INCOME (LOSS) BEFORE INCOME TAXES | 72,754 |  |  | 104 |  |  | (532 | ) |  | 428 |  |  | 72,754 |
INCOME TAX EXPENSE | 28,195 |  |  | — |  |  | — |  |  | — |  |  | 28,195 |
NET INCOME (LOSS) | $ | 44,559 |  |  | $ | 104 |  |  | $ | (532 | ) |  | $ | 428 |  |  | $ | 44,559 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts in thousands)
| Three Months Ended March 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 65,165 |  |  | $ | 296 |  |  | $ | — |  |  | $ | — |  |  | $ | 65,461 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 5,645 |  |  | 204 |  |  | — |  |  | — |  |  | 5,849 |
Production taxes | 7,747 |  |  | 22 |  |  | — |  |  | — |  |  | 7,769 |
Depreciation, depletion, and amortization | 21,395 |  |  | — |  |  | — |  |  | — |  |  | 21,395 |
General and administrative | 2,964 |  |  | 20 |  |  | 25 |  |  | — |  |  | 3,009 |
Accretion expense | 176 |  |  | — |  |  | — |  |  | — |  |  | 176 |
| 37,927 |  |  | 246 |  |  | 25 |  |  | — |  |  | 38,198 |
INCOME (LOSS) FROM OPERATIONS | 27,238 |  |  | 50 |  |  | (25 | ) |  | — |  |  | 27,263 |
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 153 |  |  | — |  |  | — |  |  | — |  |  | 153 |
Interest income | (27 | ) |  | — |  |  | — |  |  | — |  |  | (27 | )
(Income) loss from equity method investments | 243 |  |  | — |  |  | 278 |  |  | (253 | ) |  | 268 |
| 369 |  |  | — |  |  | 278 |  |  | (253 | ) |  | 394 |
INCOME (LOSS) BEFORE INCOME TAXES | 26,869 |  |  | 50 |  |  | (303 | ) |  | 253 |  |  | 26,869 |
INCOME TAX EXPENSE | — |  |  | — |  |  | — |  |  | — |  |  | — |
NET INCOME (LOSS) | $ | 26,869 |  |  | $ | 50 |  |  | $ | (303 | ) |  | $ | 253 |  |  | $ | 26,869 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Amounts in thousands)
| Three Months Ended March 31, 2013
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net income (loss) | $ | 44,559 |  |  | $ | 104 |  |  | $ | (532 | ) |  | $ | 428 |  |  | $ | 44,559 |
Foreign currency translation adjustment | (3,567 | ) |  | — |  |  | (3,567 | ) |  | 3,567 |  |  | (3,567 | )
Change in fair value of derivative instruments, net of taxes | (1,430 | ) |  | — |  |  | — |  |  | — |  |  | (1,430 | )
Reclassification of settled contracts, net of taxes | 1,797 |  |  | — |  |  | — |  |  | — |  |  | 1,797 |
Other comprehensive income (loss) | (3,200 | ) |  | — |  |  | (3,567 | ) |  | 3,567 |  |  | (3,200 | )
Comprehensive income (loss) | $ | 41,359 |  |  | $ | 104 |  |  | $ | (4,099 | ) |  | $ | 3,995 |  |  | $ | 41,359 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (Amounts in thousands)
| Three Months Ended March 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net income (loss) | $ | 26,869 |  |  | $ | 50 |  |  | $ | (303 | ) |  | $ | 253 |  |  | $ | 26,869 |
Foreign currency translation adjustment | 939 |  |  | — |  |  | 939 |  |  | (939 | ) |  | 939 |
Change in fair value of derivative instruments, net of taxes | (10,621 | ) |  | — |  |  | — |  |  | — |  |  | (10,621 | )
Reclassification of settled contracts, net of taxes | (100 | ) |  | — |  |  | — |  |  | — |  |  | (100 | )
Other comprehensive income (loss) | (9,782 | ) |  | — |  |  | 939 |  |  | (939 | ) |  | (9,782 | )
Comprehensive income | $ | 17,087 |  |  | $ | 50 |  |  | $ | 636 |  |  | $ | (686 | ) |  | $ | 17,087 |
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Amounts in thousands)
| Three Months Ended March 31, 2013
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by (used in) operating activities | $ | 35,682 |  |  | $ | (675 | ) |  | $ | — |  |  | $ | — |  |  | $ | 35,007 |
Net cash provided by (used in) investing activities | (332,807 | ) |  | (410 | ) |  | (7,529 | ) |  | 7,530 |  |  | (333,216 | )
Net cash provided by (used in) financing activities | 357,101 |  |  | — |  |  | 7,530 |  |  | (7,530 | ) |  | 357,101 |
Net increase (decrease) in cash and cash equivalents | 59,976 |  |  | (1,085 | ) |  | 1 |  |  | — |  |  | 58,892 |
Cash and cash equivalents at beginning of period | 165,293 |  |  | 1,795 |  |  | — |  |  | — |  |  | 167,088 |
Cash and cash equivalents at end of period | $ | 225,269 |  |  | $ | 710 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 225,980 |
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Amounts in thousands)
| Three Months Ended March 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by operating activities | $ | 69,101 |  |  | $ | 328 |  |  | $ | — |  |  | $ | — |  |  | $ | 69,429 |
Net cash provided by (used in) investing activities | (160,344 | ) |  | (55 | ) |  | (67,063 | ) |  | 67,063 |  |  | (160,399 | )
Net cash provided by (used in) financing activities | 9,966 |  |  | — |  |  | 67,063 |  |  | (67,063 | ) |  | 9,966 |
Net increase (decrease) in cash and cash equivalents | (81,277 | ) |  | 273 |  |  | — |  |  | — |  |  | (81,004 | )
Cash and cash equivalents at beginning of period | 93,124 |  |  | 772 |  |  | 1 |  |  | — |  |  | 93,897 |
Cash and cash equivalents at end of period | $ | 11,847 |  |  | $ | 1,045 |  |  | $ | 1 |  |  | $ | — |  |  | $ | 12,893 |
| CONDENSED CONSOLIDATING FINANCIAL INFORMATION Shown below are condensed consolidating financial statements for Gulfport Energy Corporation on a stand-alone unconsolidated basis, its combined guarantor subsidiaries and its non-guarantor subsidiary as of December 31, 2012 and 2011 and for the years ending December 31, 2012, 2011 and 2010. The financial information may not necessarily be indicative of results of operations, cash flows or financial position had the subsidiaries operated as independent entities. CONDENSED CONSOLIDATING BALANCE SHEETS (Amounts rounded to nearest thousand)
| December 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 165,293,000 |  |  | $ | 1,795,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 167,088,000 |
Accounts receivable - oil and gas | 25,070,000 |  |  | 545,000 |  |  | — |  |  | — |  |  | 25,615,000 |
Accounts receivable - related parties | 33,806,000 |  |  | 1,042,000 |  |  | — |  |  | — |  |  | 34,848,000 |
Accounts receivable - intercompany | 15,368,000 |  |  |  |  |  |  | (15,368,000 | ) |  | — |
Prepaid expenses and other current assets | 1,506,000 |  |  | — |  |  | — |  |  | — |  |  | 1,506,000 |
Short-term derivative instruments | 664,000 |  |  | — |  |  | — |  |  | — |  |  | 664,000 |
Total current assets | 241,707,000 |  |  | 3,382,000 |  |  | — |  |  | (15,368,000 | ) |  | 229,721,000 |
Property and equipment: |  |  |  |  |  |  |  |  |
Oil and natural gas properties, full-cost accounting, | 1,606,172,000 |  |  | 4,918,000 |  |  | — |  |  | — |  |  | 1,611,090,000 |
Other property and equipment | 8,642,000 |  |  | 20,000 |  |  | — |  |  | — |  |  | 8,662,000 |
Accumulated depletion, depreciation, amortization and impairment | (665,864,000 | ) |  | (20,000 | ) |  | — |  |  | — |  |  | (665,884,000 | )
Property and equipment, net | 948,950,000 |  |  | 4,918,000 |  |  | — |  |  | — |  |  | 953,868,000 |
Other assets: |  |  |  |  |  |  |  |  |
Equity investments and investments in subsidiaries | 374,209,000 |  |  | — |  |  | 172,766,000 |  |  | (165,491,000 | ) |  | 381,484,000 |
Other assets | 13,295,000 |  |  | — |  |  | — |  |  | — |  |  | 13,295,000 |
Total other assets | 387,504,000 |  |  | — |  |  | 172,766,000 |  |  | (165,491,000 | ) |  | 394,779,000 |
Deferred tax asset | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total assets | $ | 1,578,161,000 |  |  | $ | 8,300,000 |  |  | $ | 172,766,000 |  |  | $ | (180,859,000 | ) |  | $ | 1,578,368,000 |
Liabilities and Stockholders' Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | $ | 110,037,000 |  |  | $ | 207,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 110,244,000 |
Accounts payable - intercompany | — |  |  | 15,259,000 |  |  | 109,000 |  |  | (15,368,000 | ) |  | — |
Asset retirement obligation - current | 60,000 |  |  | — |  |  | — |  |  | — |  |  | 60,000 |
Short-term derivative instruments | 10,442,000 |  |  | — |  |  | — |  |  | — |  |  | 10,442,000 |
Current maturities of long-term debt | 150,000 |  |  | — |  |  | — |  |  | — |  |  | 150,000 |
Total current liabilities | 120,689,000 |  |  | 15,466,000 |  |  | 109,000 |  |  | (15,368,000 | ) |  | 120,896,000 |
Asset retirement obligation - long-term | 13,215,000 |  |  | — |  |  | — |  |  | — |  |  | 13,215,000 |
Deferred tax liability | 18,607,000 |  |  | — |  |  | — |  |  | — |  |  | 18,607,000 |
Long-term debt, net of current maturities | 298,888,000 |  |  | — |  |  | — |  |  | — |  |  | 298,888,000 |
Other non-current liabilities | 354,000 |  |  | — |  |  | — |  |  | — |  |  | 354,000 |
Total liabilities | 451,753,000 |  |  | 15,466,000 |  |  | 109,000 |  |  | (15,368,000 | ) |  | 451,960,000 |
Stockholders' equity: |  |  |  |  |  |  |  |  |
Common stock | 674,000 |  |  | — |  |  | — |  |  | — |  |  | 674,000 |
Paid-in capital | 1,036,245,000 |  |  | 322,000 |  |  | 174,348,000 |  |  | (174,670,000 | ) |  | 1,036,245,000 |
Accumulated other comprehensive income (loss) | (3,429,000 | ) |  | — |  |  | 2,442,000 |  |  | (2,442,000 | ) |  | (3,429,000 | )
Retained earnings (accumulated deficit) | 92,918,000 |  |  | (7,488,000 | ) |  | (4,133,000 | ) |  | 11,621,000 |  |  | 92,918,000 |
Total stockholders' equity | 1,126,408,000 |  |  | (7,166,000 | ) |  | 172,657,000 |  |  | (165,491,000 | ) |  | 1,126,408,000 |
Total liabilities and stockholders' equity | $ | 1,578,161,000 |  |  | $ | 8,300,000 |  |  | $ | 172,766,000 |  |  | $ | (180,859,000 | ) |  | $ | 1,578,368,000 |
CONDENSED CONSOLIDATING BALANCE SHEETS (Amounts rounded to nearest thousand)
| December 31, 2011
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Assets |  |  |  |  |  |  |  |  |
Current assets: |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 93,124,000 |  |  | $ | 772,000 |  |  | $ | 1,000 |  |  | $ | — |  |  | $ | 93,897,000 |
Accounts receivable - oil and gas | 27,532,000 |  |  | 487,000 |  |  | — |  |  | — |  |  | 28,019,000 |
Accounts receivable - related parties | 4,731,000 |  |  | — |  |  | — |  |  | — |  |  | 4,731,000 |
Accounts receivable - intercompany | 11,267,000 |  |  |  |  |  |  | (11,267,000 | ) |  | — |
Prepaid expenses and other current assets | 1,327,000 |  |  | — |  |  | — |  |  | — |  |  | 1,327,000 |
Short-term derivative instruments | 1,601,000 |  |  | — |  |  | — |  |  | — |  |  | 1,601,000 |
Total current assets | 139,582,000 |  |  | 1,259,000 |  |  | 1,000 |  |  | (11,267,000 | ) |  | 129,575,000 |
Property and equipment: |  |  |  |  |  |  |  |  |
Oil and natural gas properties, full-cost accounting, | 1,026,017,000 |  |  | 9,737,000 |  |  | — |  |  | — |  |  | 1,035,754,000 |
Other property and equipment | 8,004,000 |  |  | 20,000 |  |  | — |  |  | — |  |  | 8,024,000 |
Accumulated depletion, depreciation, amortization and impairment | (575,122,000 | ) |  | (20,000 | ) |  | — |  |  | — |  |  | (575,142,000 | )
Property and equipment, net | 458,899,000 |  |  | 9,737,000 |  |  | — |  |  | — |  |  | 468,636,000 |
Other assets: |  |  |  |  |  |  |  |  |
Equity investments and investments in subsidiaries | 86,426,000 |  |  | — |  |  | 69,008,000 |  |  | (68,610,000 | ) |  | 86,824,000 |
Other assets | 5,123,000 |  |  | — |  |  | — |  |  | — |  |  | 5,123,000 |
Total other assets | 91,549,000 |  |  | — |  |  | 69,008,000 |  |  | (68,610,000 | ) |  | 91,947,000 |
Deferred tax asset | 1,000,000 |  |  | — |  |  | — |  |  | — |  |  | 1,000,000 |
Total assets | $ | 691,030,000 |  |  | $ | 10,996,000 |  |  | $ | 69,009,000 |  |  | $ | (79,877,000 | ) |  | $ | 691,158,000 |
Liabilities and Stockholders' Equity |  |  |  |  |  |  |  |  |
Current liabilities: |  |  |  |  |  |  |  |  |
Accounts payable and accrued liabilities | $ | 43,744,000 |  |  | $ | 128,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 43,872,000 |
Accounts payable - intercompany | — |  |  | 11,231,000 |  |  | 36,000 |  |  | (11,267,000 | ) |  | — |
Asset retirement obligation - current | 620,000 |  |  | — |  |  | — |  |  | — |  |  | 620,000 |
Current maturities of long-term debt | 141,000 |  |  | — |  |  | — |  |  | — |  |  | 141,000 |
Total current liabilities | 44,505,000 |  |  | 11,359,000 |  |  | 36,000 |  |  | (11,267,000 | ) |  | 44,633,000 |
Asset retirement obligation - long-term | 12,033,000 |  |  | — |  |  | — |  |  | — |  |  | 12,033,000 |
Long-term debt, net of current maturities | 2,142,000 |  |  | — |  |  | — |  |  | — |  |  | 2,142,000 |
Total liabilities | 58,680,000 |  |  | 11,359,000 |  |  | 36,000 |  |  | (11,267,000 | ) |  | 58,808,000 |
Stockholders' equity: |  |  |  |  |  |  |  |  |
Common stock | 556,000 |  |  | — |  |  | — |  |  | — |  |  | 556,000 |
Paid-in capital | 604,584,000 |  |  | 322,000 |  |  | 70,433,000 |  |  | (70,755,000 | ) |  | 604,584,000 |
Accumulated other comprehensive income | 2,663,000 |  |  | — |  |  | 1,087,000 |  |  | (1,087,000 | ) |  | 2,663,000 |
Retained earnings (accumulated deficit) | 24,547,000 |  |  | (685,000 | ) |  | (2,547,000 | ) |  | 3,232,000 |  |  | 24,547,000 |
Total stockholders' equity | 632,350,000 |  |  | (363,000 | ) |  | 68,973,000 |  |  | (68,610,000 | ) |  | 632,350,000 |
Total liabilities and stockholders' equity | $ | 691,030,000 |  |  | $ | 10,996,000 |  |  | $ | 69,009,000 |  |  | $ | (79,877,000 | ) |  | $ | 691,158,000 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts rounded to nearest thousand)
| Year Ended December 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 247,637,000 |  |  | $ | 1,289,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 248,926,000 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 23,644,000 |  |  | 664,000 |  |  | — |  |  | — |  |  | 24,308,000 |
Production taxes | 29,306,000 |  |  | 94,000 |  |  | — |  |  | — |  |  | 29,400,000 |
Depreciation, depletion, and amortization | 90,749,000 |  |  | — |  |  | — |  |  | — |  |  | 90,749,000 |
General and administrative | 13,602,000 |  |  | 132,000 |  |  | 74,000 |  |  | — |  |  | 13,808,000 |
Accretion expense | 698,000 |  |  | — |  |  | — |  |  | — |  |  | 698,000 |
Gain on sale of asset | (7,300,000 | ) |  | — |  |  | — |  |  | — |  |  | (7,300,000 | )
| 150,699,000 |  |  | 890,000 |  |  | 74,000 |  |  | — |  |  | 151,663,000 |
INCOME (LOSS) FROM OPERATIONS | 96,938,000 |  |  | 399,000 |  |  | (74,000 | ) |  | — |  |  | 97,263,000 |
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 7,458,000 |  |  | — |  |  | — |  |  | — |  |  | 7,458,000 |
Interest income | (72,000 | ) |  | — |  |  | — |  |  | — |  |  | (72,000 | )
(Income) loss from equity method investments and subsidiaries | (5,182,000 | ) |  | — |  |  | 1,512,000 |  |  | (4,652,000 | ) |  | (8,322,000 | )
| 2,204,000 |  |  | — |  |  | 1,512,000 |  |  | (4,652,000 | ) |  | (936,000 | )
INCOME (LOSS) FROM CONTINUING OPERATIONS BEFORE INCOME TAXES | 94,734,000 |  |  | 399,000 |  |  | (1,586,000 | ) |  | 4,652,000 |  |  | 98,199,000 |
INCOME TAX EXPENSE | 26,363,000 |  |  | — |  |  | — |  |  | — |  |  | 26,363,000 |
INCOME (LOSS) FROM CONTINUING OPERATIONS | 68,371,000 |  |  | 399,000 |  |  | (1,586,000 | ) |  | 4,652,000 |  |  | 71,836,000 |
DISCONTINUED OPERATIONS | — |  |  | 3,465,000 |  |  | — |  |  | — |  |  | 3,465,000 |
NET INCOME (LOSS) | $ | 68,371,000 |  |  | $ | (3,066,000 | ) |  | $ | (1,586,000 | ) |  | $ | 4,652,000 |  |  | $ | 68,371,000 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts rounded to nearest thousand)
| Year Ended December 31, 2011
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 228,281,000 |  |  | $ | 973,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 229,254,000 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 20,168,000 |  |  | 729,000 |  |  | — |  |  | — |  |  | 20,897,000 |
Production taxes | 26,266,000 |  |  | 67,000 |  |  | — |  |  | — |  |  | 26,333,000 |
Depreciation, depletion, and amortization | 62,320,000 |  |  | — |  |  | — |  |  | — |  |  | 62,320,000 |
General and administrative | 8,038,000 |  |  | 11,000 |  |  | 25,000 |  |  | — |  |  | 8,074,000 |
Accretion expense | 666,000 |  |  | — |  |  | — |  |  | — |  |  | 666,000 |
| 117,458,000 |  |  | 807,000 |  |  | 25,000 |  |  | — |  |  | 118,290,000 |
INCOME (LOSS) FROM OPERATIONS | 110,823,000 |  |  | 166,000 |  |  | (25,000 | ) |  | — |  |  | 110,964,000 |
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 1,400,000 |  |  | — |  |  | — |  |  | — |  |  | 1,400,000 |
Interest income | (39,000 | ) |  | — |  |  | (147,000 | ) |  | — |  |  | (186,000 | )
(Income) loss from equity method investments and subsidiaries | 1,130,000 |  |  | — |  |  | 1,592,000 |  |  | (1,304,000 | ) |  | 1,418,000 |
| 2,491,000 |  |  | — |  |  | 1,445,000 |  |  | (1,304,000 | ) |  | 2,632,000 |
INCOME (LOSS) BEFORE INCOME TAXES | 108,332,000 |  |  | 166,000 |  |  | (1,470,000 | ) |  | 1,304,000 |  |  | 108,332,000 |
INCOME TAX BENEFIT | (90,000 | ) |  | — |  |  | — |  |  | — |  |  | (90,000 | )
NET INCOME (LOSS) | $ | 108,422,000 |  |  | $ | 166,000 |  |  | $ | (1,470,000 | ) |  | $ | 1,304,000 |  |  | $ | 108,422,000 |
CONDENSED CONSOLIDATING STATEMENTS OF OPERATIONS (Amounts rounded to nearest thousand)
| Year Ended December 31, 2010
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Total revenues | $ | 127,380,000 |  |  | $ | 541,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 127,921,000 |
Costs and expenses: |  |  |  |  |  |  |  |  |
Lease operating expenses | 17,043,000 |  |  | 571,000 |  |  | — |  |  | — |  |  | 17,614,000 |
Production taxes | 13,929,000 |  |  | 37,000 |  |  | — |  |  | — |  |  | 13,966,000 |
Depreciation, depletion, and amortization | 38,902,000 |  |  | 5,000 |  |  | — |  |  | — |  |  | 38,907,000 |
General and administrative | 6,037,000 |  |  | 24,000 |  |  | 2,000 |  |  | — |  |  | 6,063,000 |
Accretion expense | 617,000 |  |  | — |  |  | — |  |  | — |  |  | 617,000 |
| 76,528,000 |  |  | 637,000 |  |  | 2,000 |  |  | — |  |  | 77,167,000 |
INCOME (LOSS) FROM OPERATIONS | 50,852,000 |  |  | (96,000 | ) |  | (2,000 | ) |  | — |  |  | 50,754,000 |
OTHER (INCOME) EXPENSE: |  |  |  |  |  |  |  |  |
Interest expense | 2,761,000 |  |  | — |  |  | — |  |  | — |  |  | 2,761,000 |
Interest income | (120,000 | ) |  | — |  |  | (267,000 | ) |  | — |  |  | (387,000 | )
Loss from equity method investments and subsidiaries | 808,000 |  |  | — |  |  | 740,000 |  |  | (571,000 | ) |  | 977,000 |
| 3,449,000 |  |  | — |  |  | 473,000 |  |  | (571,000 | ) |  | 3,351,000 |
INCOME (LOSS) BEFORE INCOME TAXES | 47,403,000 |  |  | (96,000 | ) |  | (475,000 | ) |  | 571,000 |  |  | 47,403,000 |
INCOME TAX EXPENSE | 40,000 |  |  | — |  |  | — |  |  | — |  |  | 40,000 |
NET INCOME (LOSS) | $ | 47,363,000 |  |  | $ | (96,000 | ) |  | $ | (475,000 | ) |  | $ | 571,000 |  |  | $ | 47,363,000 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Amounts rounded to nearest thousand)
| Year Ended December 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net income (loss) | $ | 68,371,000 |  |  | $ | (3,066,000 | ) |  | $ | (1,586,000 | ) |  | $ | 4,652,000 |  |  | $ | 68,371,000 |
Foreign currency translation adjustment | 1,355,000 |  |  | — |  |  | 1,355,000 |  |  | (1,355,000 | ) |  | 1,355,000 |
Change in fair value of derivative instruments, net of taxes | (8,452,000 | ) |  | — |  |  | — |  |  | — |  |  | (8,452,000 | )
Reclassification of settled contracts, net of taxes | 1,005,000 |  |  | — |  |  | — |  |  | — |  |  | 1,005,000 |
Other comprehensive income (loss) | (6,092,000 | ) |  | — |  |  | 1,355,000 |  |  | (1,355,000 | ) |  | (6,092,000 | )
Comprehensive income (loss) | $ | 62,279,000 |  |  | $ | (3,066,000 | ) |  | $ | (231,000 | ) |  | $ | 3,297,000 |  |  | $ | 62,279,000 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Amounts rounded to nearest thousand)
| Year Ended December 31, 2011
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net income (loss) | $ | 108,422,000 |  |  | $ | 166,000 |  |  | $ | (1,470,000 | ) |  | $ | 1,304,000 |  |  | $ | 108,422,000 |
Foreign currency translation adjustment | (1,865,000 | ) |  | — |  |  | (1,865,000 | ) |  | 1,865,000 |  |  | (1,865,000 | )
Change in fair value of derivative instruments, net of taxes | 1,576,000 |  |  | — |  |  | — |  |  | — |  |  | 1,576,000 |
Reclassification of settled contracts, net of taxes | 4,720,000 |  |  | — |  |  | — |  |  | — |  |  | 4,720,000 |
Other comprehensive income (loss) | 4,431,000 |  |  | — |  |  | (1,865,000 | ) |  | 1,865,000 |  |  | 4,431,000 |
Comprehensive income (loss) | $ | 112,853,000 |  |  | $ | 166,000 |  |  | $ | (3,335,000 | ) |  | $ | 3,169,000 |  |  | $ | 112,853,000 |
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Amounts rounded to nearest thousand)
| Year Ended December 31, 2010
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net income (loss) | $ | 47,363,000 |  |  | $ | (96,000 | ) |  | $ | (475,000 | ) |  | $ | 571,000 |  |  | $ | 47,363,000 |
Foreign currency translation adjustment | 2,255,000 |  |  | — |  |  | 2,255,000 |  |  | (2,255,000 | ) |  | 2,255,000 |
Change in fair value of derivative instruments, net of taxes | (4,720,000 | ) |  | — |  |  | — |  |  | — |  |  | (4,720,000 | )
Reclassification of settled contracts, net of taxes | 18,736,000 |  |  | — |  |  | — |  |  | — |  |  | 18,736,000 |
Other comprehensive income | 16,271,000 |  |  | — |  |  | 2,255,000 |  |  | (2,255,000 | ) |  | 16,271,000 |
Comprehensive income (loss) | $ | 63,634,000 |  |  | $ | (96,000 | ) |  | $ | 1,780,000 |  |  | $ | (1,684,000 | ) |  | $ | 63,634,000 |
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Amounts rounded to nearest thousand)
| Year Ended December 31, 2012
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by (used in) operating activities | $ | 195,734,000 |  |  | $ | 3,425,000 |  |  | $ | (1,000 | ) |  | $ | — |  |  | $ | 199,158,000 |
Net cash provided by (used) in investing activities | (838,177,000 | ) |  | (2,402,000 | ) |  | (103,915,000 | ) |  | 103,915,000 |  |  | (840,579,000 | )
Net cash provided by (used in) financing activities | 714,612,000 |  |  | — |  |  | 103,915,000 |  |  | (103,915,000 | ) |  | 714,612,000 |
Net increase (decrease) in cash and cash equivalents | 72,169,000 |  |  | 1,023,000 |  |  | (1,000 | ) |  | — |  |  | 73,191,000 |
Cash and cash equivalents at beginning of period | 93,124,000 |  |  | 772,000 |  |  | 1,000 |  |  | — |  |  | 93,897,000 |
Cash and cash equivalents at end of period | $ | 165,293,000 |  |  | $ | 1,795,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 167,088,000 |
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Amounts rounded to nearest thousand)
| Year Ended December 31, 2011
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by operating activities | $ | 154,329,000 |  |  | $ | 3,808,000 |  |  | $ | 1,000 |  |  | $ | — |  |  | $ | 158,138,000 |
Net cash provided by (used in) investing activities | (320,203,000 | ) |  | (3,045,000 | ) |  | (25,858,000 | ) |  | 25,858,000 |  |  | (323,248,000 | )
Net cash provided by (used in) financing activities | 256,539,000 |  |  | — |  |  | 25,858,000 |  |  | (25,858,000 | ) |  | 256,539,000 |
Net increase in cash and cash equivalents | 90,665,000 |  |  | 763,000 |  |  | 1,000 |  |  | — |  |  | 91,429,000 |
Cash and cash equivalents at beginning of period | 2,459,000 |  |  | 9,000 |  |  | — |  |  | — |  |  | 2,468,000 |
Cash and cash equivalents at end of period | $ | 93,124,000 |  |  | $ | 772,000 |  |  | $ | 1,000 |  |  | $ | — |  |  | $ | 93,897,000 |
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS (Amounts rounded to nearest thousand)
| Year Ended December 31, 2010
| Parent |  | Guarantors |  | Non-Guarantor |  | Eliminations |  | Consolidated
Net cash provided by (used in) operating activities | $ | 81,651,000 |  |  | $ | 4,184,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 85,835,000 |
Net cash provided by (used in) investing activities | (101,042,000 | ) |  | (4,273,000 | ) |  | (3,719,000 | ) |  | 3,719,000 |  |  | (105,315,000 | )
Net cash provided by (used in) financing activities | 20,224,000 |  |  | — |  |  | 3,719,000 |  |  | (3,719,000 | ) |  | 20,224,000 |
Net increase (decrease) in cash and cash equivalents | 833,000 |  |  | (89,000 | ) |  | — |  |  | — |  |  | 744,000 |
Cash and cash equivalents at beginning of period | 1,626,000 |  |  | 98,000 |  |  | — |  |  | — |  |  | 1,724,000 |
Cash and cash equivalents at end of period | $ | 2,459,000 |  |  | $ | 9,000 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,468,000 |

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- Definition The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 06 -Article 9 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=7656940&loc=d3e5283-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24072-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Article 5 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 12 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 05 -Paragraph c -Article 7 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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