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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Current assets:    
Cash and cash equivalents $ 303,741 $ 174,185
Accounts receivable, net of allowance for credit losses of $10,996 and $6,516 at September 30, 2020 and December 31, 2019, respectively 131,329 339,699
Federal and state income taxes receivable 4,778 6,397
Inventory 33,693 36,357
Other 58,569 75,177
Total current assets 532,110 631,815
Property and equipment, net 2,893,172 3,306,677
Right of use asset 17,679 31,275
Goodwill and intangible assets 33,151 444,004
Deposits on equipment purchases 4,728 8,066
Other 10,385 17,778
Total assets 3,491,225 4,439,615
Current liabilities:    
Accounts payable 74,367 170,475
Federal and state income taxes payable   342
Accrued liabilities 181,560 219,850
Lease liability 7,470 9,935
Total current liabilities 263,397 400,602
Long-term lease liability 20,738 26,644
Long-term debt, net of debt discount and issuance costs of $7,634 and $8,460 at September 30, 2020 and December 31, 2019, respectively 967,366 966,540
Deferred tax liabilities, net 102,747 202,959
Other 17,414 9,250
Total liabilities 1,371,662 1,605,995
Commitments and contingencies (see Note 9)
Stockholders' equity:    
Preferred stock, par value $0.01; authorized 1,000,000 shares, no shares issued
Common stock, par value $0.01; authorized 400,000,000 shares with 270,861,290 and 269,372,257 issued and 187,476,087 and 192,035,870 outstanding at September 30, 2020 and December 31, 2019, respectively 2,708 2,694
Additional paid-in capital 2,895,753 2,875,680
Retained earnings 582,360 1,294,902
Accumulated other comprehensive income 5,005 5,478
Treasury stock, at cost, 83,385,203 and 77,336,387 shares at September 30, 2020 and December 31, 2019, respectively (1,366,263) (1,345,134)
Total stockholders' equity 2,119,563 2,833,620
Total liabilities and stockholders' equity $ 3,491,225 $ 4,439,615