Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents		$ 669	$ 6,452
Accounts receivable, net of allowance for doubtful accounts of $2,494 and $2,531 at June 30, 2019 and December 31, 2018, respectively		89,876	119,397
Materials and supplies		516	473
Current derivative asset (Note 10)		8,513	12,870
Income taxes receivable		2,405	2,054
Assets held for sale (Note 3)		19,500	22,511
Prepaid expenses and other		9,106	6,602
Total current assets		130,585	170,359
Oil and natural gas properties on the full cost method:
Proved properties		6,212,323	6,018,568
Unproved properties not being amortized		336,214	330,216
Drilling equipment		1,284,295	1,284,419
Gas gathering and processing equipment		798,503	767,388
Saltwater disposal systems		69,212	68,339
Corporate land and building		59,080	59,081
Transportation equipment		30,019	29,524
Other		57,900	57,507
Property, plant, and equipment, gross		8,847,546	8,615,042
Less accumulated depreciation, depletion, amortization, and impairment		6,289,575	6,182,726
Net property and equipment		2,557,971	2,432,316
Goodwill		62,808	62,808
Right of use asset (Note 12)		8,302	0
Other assets		33,863	32,570
Total assets	[1]	2,793,529	2,698,053
Current liabilities:
Accounts payable		131,129	149,945
Accrued liabilities (Note 5)		45,175	49,664
Current operating lease liability (Note 12)		4,519	0
Current portion of other long-term liabilities (Note 6)		13,887	14,250
Total current liabilities		194,710	213,859
Long-term debt less debt issuance costs (Note 6)		756,590	644,475
Non-current derivative liability (Note 10)		256	293
Operating lease liability (Note 12)		3,556	0
Other long-term liabilities (Note 6)		102,700	101,234
Deferred income taxes		142,485	144,748
Commitments and contingencies (Note 13)		0	0
Shareholders' equity:
Preferred stock, $1.00 par value, 5,000,000 shares authorized, none issued		0	0
Common stock, $.20 par value, 175,000,000 shares authorized, 55,536,916 and 54,055,600 shares issued as of June 30, 2019 and December 31, 2018, respectively		10,590	10,414
Capital in excess of par value		638,769	628,108
Accumulated other comprehensive loss (Note 15)		(487)	(481)
Retained earnings		741,001	752,840
Total shareholders’ equity attributable to Unit Corporation		1,389,873	1,390,881
Non-controlling interests in consolidated subsidiaries		203,359	202,563
Total shareholders' equity		1,593,232	1,593,444
Total liabilities and shareholders' equity	[1]	$ 2,793,529	$ 2,698,053

[1] Unit Corporation's consolidated total assets as of June 30, 2019 include total current and long-term assets of its variable interest entity (VIE) (Superior Pipeline Company, L.L.C.) of $23.7 million and $435.4 million, respectively, which can only be used to settle obligations of the VIE. Unit Corporation's consolidated total liabilities as of June 30, 2019 include total current and long-term liabilities of the VIE of $29.6 million and $21.4 million, respectively, for which the creditors of the VIE have no recourse to Unit Corporation. Unit Corporation's consolidated total assets as of December 31, 2018 include total current and long-term assets of the VIE of $40.1 million and $423.3 million, respectively, which can only be used to settle obligations of the VIE. Unit Corporation's consolidated total liabilities as of December 31, 2018 include total current and long-term liabilities of the VIE of $42.8 million and $14.7 million, respectively, for which the creditors of the VIE have no recourse to Unit Corporation. See Note 14 – Variable Interest Entity Arrangements.