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CONSOLIDATED BALANCE SHEETS (in thousands, except share data) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 332,716 | $ 10
Accounts receivable | 247,201 | 162,455
Derivative assets | 24,095 | 31,203
Prepaid expenses and other | 9,175 | 10,001
Total current assets | 613,187 | 203,669
Property and equipment (successful efforts method): |  |
Proved oil and gas properties | 9,397,407 | 8,608,522
Accumulated depletion, depreciation, and amortization | (5,634,961) | (4,886,973)
Unproved oil and gas properties | 629,098 | 714,602
Wells in progress | 148,394 | 233,498
Other property and equipment, net of accumulated depreciation of $62,359 and $63,662, respectively | 36,060 | 32,217
Total property and equipment, net | 4,575,998 | 4,701,866
Noncurrent assets: |  |
Derivative assets | 239 | 23,150
Other noncurrent assets | 44,553 | 47,746
Total noncurrent assets | 44,792 | 70,896
Total assets | 5,233,977 | 4,976,431
Other property and equipment, accumulated depreciation | 62,359 | 63,662
Current liabilities: |  |
Accounts payable and accrued expenses | 563,306 | 371,670
Derivative liabilities | 319,506 | 200,189
Other current liabilities | 6,515 | 11,880
Total current liabilities | 889,327 | 583,739
Noncurrent liabilities: |  |
Revolving credit facility | 0 | 93,000
Senior Notes, net | 2,081,164 | 2,121,319
Deferred income taxes | 9,769 | 0
Asset retirement obligations | 97,324 | 83,325
Derivative liabilities | 25,696 | 22,331
Other noncurrent liabilities | 67,566 | 56,557
Total noncurrent liabilities | 2,281,519 | 2,376,532
Commitments and contingencies (note 6) |  |
Stockholders’ equity: |  |
Common stock, $0.01 par value - authorized: 200,000,000 shares; issued and outstanding: 121,862,248 and 114,742,304 shares, respectively | 1,219 | 1,147
Additional paid-in capital | 1,840,228 | 1,827,914
Retained earnings | 234,533 | 200,697
Accumulated other comprehensive loss | (12,849) | (13,598)
Total stockholders’ equity | 2,063,131 | 2,016,160
Total liabilities and stockholders’ equity | $ 5,233,977 | $ 4,976,431
Common Stock, par value per share | $ 0.01 | $ 0.01
Common Stock, shares authorized | 200,000,000 | 200,000,000
Common Stock, shares issued | 121,862,248 | 114,742,304
Common Stock, shares outstanding | 121,862,248 | 114,742,304

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- Definition The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600 + Details
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- Definition Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 + Details
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