Unit (UNTC) 10-Q 2 May 19 2019 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2019	Apr. 19, 2019
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q1
Trading Symbol	unt
Entity Registrant Name	UNIT CORP
Entity Central Index Key	0000798949
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		55,467,987
Entity Current Reporting Status	Yes

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents		$ 3,891	$ 6,452
Accounts receivable, net of allowance for doubtful accounts of $2,531 at both March 31, 2019 and December 31, 2018, respectively		93,875	119,397
Materials and supplies		495	473
Current derivative asset (Note 10)		3,464	12,870
Income taxes receivable		2,054	2,054
Assets held for sale (Note 3)		19,728	22,511
Prepaid expenses and other		7,504	6,602
Total current assets		131,011	170,359
Oil and natural gas properties on the full cost method:
Proved properties		6,104,092	6,018,568
Unproved properties not being amortized		339,957	330,216
Drilling equipment		1,279,735	1,284,419
Gas gathering and processing equipment		781,970	767,388
Saltwater disposal systems		69,010	68,339
Corporate land and building		59,080	59,081
Transportation equipment		30,327	29,524
Other		57,624	57,507
Property, plant, and equipment, gross		8,721,795	8,615,042
Less accumulated depreciation, depletion, amortization, and impairment		6,225,220	6,182,726
Net property and equipment		2,496,575	2,432,316
Goodwill		62,808	62,808
Right of use asset (Note 12)		4,551	0
Other assets		34,235	32,570
Total assets	[1]	2,729,180	2,698,053
Current liabilities:
Accounts payable		132,899	149,945
Accrued liabilities (Note 5)		48,084	49,664
Current operating lease liability (Note 12)		2,369	0
Current portion of other long-term liabilities (Note 6)		14,310	14,250
Total current liabilities		197,662	213,859
Long-term debt less debt issuance costs (Note 6)		685,031	644,475
Non-current derivative liability (Note 10)		475	293
Operating lease liability (Note 12)		1,952	0
Other long-term liabilities (Note 6)		103,832	101,234
Deferred income taxes		144,369	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, 55,467,987 and 54,055,600 shares issued as of March 31, 2019 and December 31, 2018, respectively		10,578	10,414
Capital in excess of par value		633,361	628,108
Accumulated other comprehensive loss (Note 15)		(457)	(481)
Retained earnings		749,510	752,840
Total shareholders’ equity attributable to Unit Corporation		1,392,992	1,390,881
Non-controlling interests in consolidated subsidiaries		202,867	202,563
Total shareholders' equity		1,595,859	1,593,444
Total liabilities and shareholders' equity	[1]	$ 2,729,180	$ 2,698,053
[1]	Unit Corporation's consolidated total assets as of March 31, 2019 include total current and long-term assets of its variable interest entity (VIE) (Superior Pipeline Company, L.L.C.) of $28.9 million and $428.1 million, respectively, which can only be used to settle obligations of the VIE. Unit Corporation's consolidated total liabilities as of March 31, 2019 include total current and long-term liabilities of the VIE of $36.0 million and $14.0 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.

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 2,531	$ 2,531
Preferred stock, par value	$ 1	$ 1
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.20	$ 0.20
Common stock, shares authorized	175,000,000	175,000,000
Common stock, shares issued	55,467,987	54,055,600
VIE Current Assets Pledged	$ 28,900	$ 40,100
VIE Non-current Assets Pledged	428,100	423,300
VIE Current Liabilities, No Recourse	36,000	42,800
VIE Non-current Liabilities, No Recourse	$ 14,000	$ 14,700

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Revenues	$ 189,691	$ 205,132
Operating costs:
Operating costs	103,470	109,233
Depreciation, depletion, and amortization	62,126	57,066
General and administrative	9,741	10,762
(Gain) loss on disposition of assets	1,615	(161)
Total operating expenses	176,952	176,900
Income from operations	12,739	28,232
Other income (expense):
Interest, net	(8,538)	(10,004)
Loss on derivatives	(6,932)	(6,762)
Other, net	5	6
Total other income (expense)	(15,465)	(16,760)
Income (loss) before income taxes	(2,726)	11,472
Income tax expense (benefit):
Deferred	(444)	3,607
Total income taxes	(444)	3,607
Net income (loss)	(2,282)	7,865
Net income attributable to non-controlling interest	1,222	0
Net income (loss) attributable to Unit Corporation	$ (3,504)	$ 7,865
Net income (loss) attributable to Unit Corporation per common share:
Basic	$ (0.07)	$ 0.15
Diluted	$ (0.07)	$ 0.15
Oil and natural gas
Revenues:
Revenues	$ 86,095	$ 103,099
Operating costs:
Operating costs	32,714	35,962
Contract drilling
Revenues:
Revenues	51,155	45,989
Operating costs:
Operating costs	31,401	31,667
Gas gathering and processing
Revenues:
Revenues	52,441	56,044
Operating costs:
Operating costs	$ 39,355	$ 41,604

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (2,282)	$ 7,865
Other comprehensive income (loss), net of taxes:
Unrealized gain (loss) on securities, net of tax of $7 and ($58)	24	(176)
Comprehensive income (loss)	(2,258)	7,689
Less: Comprehensive income attributable to non-controlling interest	1,222	0
Comprehensive income (loss) attributable to Unit Corporation	$ (3,480)	$ 7,689

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
Unrealized income (loss) on securities, tax	$ 7	$ (58)

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Capital In Excess of Par Value [Member]	Accumulated other comprehensive income (loss) [Member]	Retained earnings [Member]	Non-controlling interests in consolidated subsidiaries [Member]
Cumulative effect adjustment for adoption of ASUs	$ (1,261)	$ 0	$ 0	$ 13	$ (1,274)	$ 0
Stockholders' equity, beginning balance at Dec. 31, 2017	1,345,560	10,280	535,815	63	799,402	0
Net Income (loss)	7,865	0	0	0	7,865	0
Other comprehensive income (loss)	(176)	0	0	(176)	0	0
Total comprehensive income (loss)	7,689
Activity in employee compensation plans	5,312	123	5,189	0	0	0
Stockholders' equity, ending balance at Mar. 31, 2018	1,357,300	10,403	541,004	(100)	805,993	0
Cumulative effect adjustment for adoption of ASUs	174	0	0	0	174	0
Stockholders' equity, beginning balance at Dec. 31, 2018	1,593,444	10,414	628,108	(481)	752,840	202,563
Net Income (loss)	(2,282)	0	0	0	(3,504)	1,222
Other comprehensive income (loss)	24	0	0	24	0	0
Total comprehensive income (loss)	(2,258)
Distributions to non-controlling interest	(918)	0	0	0	0	(918)
Activity in employee compensation plans	5,417	164	5,253	0	0	0
Stockholders' equity, ending balance at Mar. 31, 2019	$ 1,595,859	$ 10,578	$ 633,361	$ (457)	$ 749,510	$ 202,867

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (Parenthetical) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Activity in employee compensation plans (shares)	1,412,387	1,166,227

Condensed Consolidated Statem_6

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
OPERATING ACTIVITIES:
Net income (loss)	$ (2,282)	$ 7,865
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, depletion, and amortization	62,126	57,066
Amortization of debt issuance costs and debt discount (Note 6)	556	546
Loss on derivatives (Note 10)	6,932	6,762
Cash proceeds (payments) on derivatives settled, net (Note 10)	2,656	(2,073)
Deferred tax expense	(444)	3,607
(Gain) loss on disposition of assets	1,615	(161)
Stock compensation plans	5,134	6,609
Contracts assets and liabilities, net (Note 2)	(700)	(1,192)
Other, net	573	937
Changes in operating assets and liabilities increasing (decreasing) cash:
Accounts receivable	18,830	8,005
Accounts payable	(20,848)	(10,716)
Material and supplies	(22)	50
Accrued liabilities	2,749	6,757
Other, net	203	(494)
Net cash provided by operating activities	77,078	83,568
INVESTING ACTIVITIES:
Capital expenditures	(122,507)	(90,249)
Producing properties and other acquisitions	(1,580)	0
Proceeds from disposition of assets	3,190	22,084
Net cash used in investing activities	(120,897)	(68,165)
FINANCING ACTIVITIES:
Borrowings under credit agreement	109,800	67,400
Payments under credit agreement	(69,800)	(97,700)
Payments on finance leases	(985)	(946)
Distributions to non-controlling interest	(918)	0
Book overdrafts	3,161	15,894
Net cash provided by (used in) financing activities	41,258	(15,352)
Net increase (decrease) in cash and cash equivalents	(2,561)	51
Cash and cash equivalents, beginning of period	6,452	701
Cash and cash equivalents, end of period	3,891	752
Cash paid during the year for:
Interest paid (net of capitalized)	(3,307)	(1,731)
Income taxes	0	0
Changes in accounts payable and accrued liabilities related to purchases of property, plant, and equipment	(641)	(13,238)
Non-cash (addition) reduction to oil and natural gas properties related to asset retirement obligations	$ (3,070)	$ 6,340

Basis of Preparation and Presen

Basis of Preparation and Presentation	3 Months Ended
	Mar. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Preparation and Presentation	BASIS OF PREPARATION AND PRESENTATION The unaudited condensed consolidated financial statements in this report include the accounts of Unit Corporation and all its subsidiaries and affiliates and have been prepared under the rules and regulations of the SEC. The terms “company,” “Unit,” “we,” “our,” “us,” or like terms refer to Unit Corporation, a Delaware corporation, and one or more of its subsidiaries and affiliates, except as otherwise indicated or as the context otherwise requires. We consolidate the activities of Superior Pipeline Company, L.L.C. (Superior), a 50/50 joint venture between Unit Corporation and SP Investor Holdings, LLC, which qualifies as a Variable Interest Entity (VIE) under generally accepted accounting principles in the United States (GAAP). We have concluded that we are the primary beneficiary of the VIE, as defined in the accounting standards, since we have the power, through our 50% ownership, to direct those activities that most significantly affect the economic performance of Superior as further described in Note 14 – Variable Interest Entity Arrangements. The condensed consolidated financial statements are unaudited and do not include all the notes in our annual financial statements. This report should be read with the audited consolidated financial statements and notes in our Form 10-K, filed February 26, 2019, for the year ended December 31, 2018. In the opinion of our management, the unaudited condensed consolidated financial statements contain all normal recurring adjustments (including the elimination of all intercompany transactions) necessary to fairly state: • Balance Sheets at March 31, 2019 and December 31, 2018; • Statements of Operations for the three months ended March 31, 2019 and 2018; • Statements of Comprehensive Income (Loss) for the three months ended March 31, 2019 and 2018; • Statements of Changes in Shareholders' Equity for the three months ended March 31, 2019 and 2018; and • Statements of Cash Flows for the three months ended March 31, 2019 and 2018. Our financial statements are prepared in conformity with GAAP, which requires us to make certain estimates and assumptions that may affect the amounts reported in our unaudited condensed consolidated financial statements and notes. Actual results may differ from those estimates. Results for the three months ended March 31, 2019 and 2018 are not necessarily indicative of the results we may realize for the full year of 2019, or that we realized for the full year of 2018. Certain amounts in this report for prior periods have been reclassified to conform to current year presentation. There was no impact to consolidated net income (loss) or shareholders' equity. Accounting Changes - Recent Accounting Pronouncements - Adopted A s of January 1, 201 9 , we adopted Leases - Topic 842 (ASC 842 ) using the modified retrospective method and the optional transition method to record the adoption impact through a cumulative adjustment to equity. Results for reporting periods beginning after January 1, 2019, are presented under Topic 842, while prior periods are not adjusted and continue to be reported under the accounting standards in effect for those periods. This new lease standard is explained further in Note 8 – New Accounting Pronouncements. The additional disclosures required by ASC 842 have been included in Note 12 – Leases.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	3 Months Ended
	Mar. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	REVENUE FROM CONTRACTS WITH CUSTOMERS Our revenue streams are reported under three segments: oil and natural gas, contract drilling, and mid-stream. This is our disaggregation of revenue and how our segment revenue is reported (as reflected in Note 1 6 – Industry Segment Information). Revenue from the oil and natural gas segment is from sales of our oil and natural gas production. Revenue from the contract drilling segment is derived by contracting with upstream companies to drill an agreed-on number of wells or provide drilling rigs and services over an agreed-on time period. Revenue from the mid-stream segment is derived from gathering, transporting, and processing natural gas production and selling those commodities. We sell the hydrocarbons (from the oil and natural gas and mid-stream segments) to mid-stream and downstream oil and gas companies. Oil and Natural Gas Revenues Certain costs—as either a deduction from revenue or as an expense—is determined based on when control of the commodity is transferred to our customer, which would affect our total revenue recognized, but will not affect gross profit. For example, gathering, processing and transportation costs included as part of the contract price with the customer on transfer of control of the commodity are included in the transaction price, while costs incurred while we are in control of the commodity represent operating costs. Contract Drilling Revenues We evaluated the mobilization and de-mobilization charges due on our outstanding drilling contracts . T he impact of those charges to the financial statements was immaterial. As of March 31, 2019, we had 32 contract drilling contracts with terms ranging from two months to almost three years. Most of our drilling contracts have an original term of less than one year; however, the remaining performance obligations under the contracts that have a longer duration are not material. Mid-stream Contracts Revenues Revenues are generated from the fees earned for gas gathering and processing services provided to a customer. The typical revenue contracts used by this segment are gas gathering and processing agreements. The following tables show the changes in our mid-stream contract asset and contract liability balances during the three months ended March 31, 2019: Contract Assets Amount (In thousands) Balance at December 31, 2018 (1) $ 13,164 Amounts invoiced in excess of revenue recognized (9) Balance at March 31, 2019 (1) $ 13,155 _______________________ 1. At December 31 , 2018, the total contract assets are included in prepaid expenses and other and other assets of $0.3 million and $12.9 million, respectively, in our Condensed Consolidated Balance Sheet. At March 31, 2019, the total contract assets included prepaid expenses and other and other assets of $1.8 million and $11.4 million, respectively, in our Condensed Consolidated Balance Sheet. Contract Liabilities Amount (In thousands) Balance at December 31, 2018 $ 9,882 Revenue recognized included in beginning balance (709) Balance at March 31, 2019 $ 9,173 _______________________ 1. At December 31, 2018, the total contract liabilities are included in current portion of other long-term liabilities and other long-term liabilities of $2.9 million and $7.0 million, respectively, in our Condensed Consolidated Balance Sheet. At March 31, 2019, the total contract liabilities included current portion of other long-term liabilities and other long-term liabilities of $2.9 million and $6.3 million, respectively, in our Condensed Consolidated Balance Sheet. Included below is the additional fixed revenue we will earn over the remaining term of the contracts and excludes all variable consideration to be earned with the associated contract. Contract Remaining Term of Contract April - December 2019 2020 2021 2022 Total Remaining Impact to Revenue (In thousands) Demand fee contracts 3-4 years $ 1,932 $ (3,781) $ (3,507) $ 1,374 $ (3,982)

Divestitures

Divestitures	3 Months Ended
	Mar. 31, 2019
Property, Plant and Equipment Impairment or Disposal [Abstract]
Divestitures	DIVESTITURES Oil and Natural Gas We sold non-core oil and natural gas assets, net of related expenses, for $0.6 million during the first three months of 2019, compared to $21.7 million during the first three months of 2018. Proceeds from those sales reduced the net book value of our full cost pool with no gain or loss recognized. Contract Drilling In December 2018, we removed 41 drilling rigs and other equipment from service. We estimated the fair value of the 41 drilling rigs based on the estimated market value from third-party assessments (Level 3 fair value measurement) less cost to sell. Based on these estimates, we recorded a non-cash write-down of approximately $147.9 million, pre-tax. During the first quarter of 2019, we sold three of these drilling rigs and some of the other equipment to unaffiliated third parties. The proceeds of those sales, less costs to sell, was less than the applicable $2.8 million net book value resulting in a loss of $0.6 million. The remaining drilling rigs and equipment not sold will be marketed for sale throughout 2019 and remain classified as assets held for sale. The net book value of those assets is $19.7 million.

Earnings (Loss) Per Share

Earnings (Loss) Per Share	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Earnings Per Share	EARNINGS (LOSS) PER SHARE Information related to the calculation of earnings (loss) per share attributable to Unit Corporation follows: Earnings (Loss) Weighted Per-Share (In thousands except per share amounts) For the three months ended March 31, 2019 Basic loss attributable to Unit Corporation per common share $ (3,504) 52,557 $ (0.07) Effect of dilutive stock options and restricted stock — — — Diluted loss attributable to Unit Corporation per common share $ (3,504) 52,557 $ (0.07) For the three months ended March 31, 2018 Basic earnings attributable to Unit Corporation per common share $ 7,865 51,730 $ 0.15 Effect of dilutive stock options and restricted stock — 542 — Diluted earnings attributable to Unit Corporation per common share $ 7,865 52,272 $ 0.15 Due to the net loss for the three months ended March 31, 2019, approximately 279,000 weighted average shares related to stock options and restricted stock were antidilutive and were excluded from the earnings per share calculation above. The following table shows the number of stock options (and their average exercise price) excluded because their option exercise prices were greater than the average market price of our common stock: Three Months Ended March 31, 2019 2018 Stock options 56,000 87,500 Average exercise price $ 44.73 $ 51.34

Accrued Liabilities

Accrued Liabilities	3 Months Ended
	Mar. 31, 2019
Accrued Liabilities [Abstract]
Accrued Liabilities	ACCRUED LIABILITIES Accrued liabilities consisted of: March 31, December 31, (In thousands) Interest payable $ 17,354 $ 6,635 Employee costs 10,356 22,056 Lease operating expenses 7,961 12,756 Taxes 4,059 1,378 Third-party credits 2,974 2,129 Other 5,380 4,710 Total accrued liabilities $ 48,084 $ 49,664

Long-Term Debt And Other Long-T

Long-Term Debt And Other Long-Term Liabilities	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt And Other Long-Term Liabilities	LONG-TERM DEBT AND OTHER LONG-TERM LIABILITIES Long-Term Debt As of the date indicated, o ur long-term debt consisted of the following: March 31, December 31, (In thousands) Unit credit agreement with an average interest rate of 4.0% at March 31, 2019 $ 40,000 $ — Superior credit agreement — — 6.625% senior subordinated notes due 2021 650,000 650,000 Total principal amount 690,000 650,000 Less: unamortized discount (1,464) (1,623) Less: debt issuance costs, net (3,505) (3,902) Total long-term debt $ 685,031 $ 644,475 Unit Credit Agreement. On October 18, 2018, we amended our Senior Credit Agreement (Unit credit agreement) which is scheduled to mature on October 18, 2023. Under that agreement, the amount we can borrow is the lesser of the amount we elect as the commitment amount or the value of the borrowing base as determined by the lenders, but in either event not to exceed the maximum credit agreement amount of $1.0 billion . Our elected commitment amount is $425.0 million. Our borrowing base is $425.0 million. We are currently charged a commitment fee of 0.375% on the amount available but not borrowed. That fee varies based on the amount borrowed as a percentage of the total borrowing base. Total amendment fees of $3.3 million in origination, agency, syndication, and other related fees are being amortized over the life of the agreement. U nder the agreement, we have pledged as collateral 80% of the proved developed producing (discounted as present worth at 8%) total value of our oil and gas properties. On May 2, 2018, we entered into a Pledge Agreement with BOKF, NA (dba Bank of Oklahoma), as administrative agent to benefit the secured parties, under which we granted a security interest in the limited liability membership interests and other equity interests we own in Superior (which as of this report is 50% of the aggregate outstanding equity interests of Superior) as additional collateral for our obligations under the Unit credit agreement. The borrowing base amount–which is subject to redetermination by the lenders on April 1st and October 1st of each year–is based on a percentage of the discounted future value of our oil and natural gas reserves. We or the lenders may request a onetime special redetermination of the borrowing base between each scheduled redetermination. In addition, we may request a redetermination following the completion of an acquisition that meets the requirements in the Unit credit agreement. At our election, any part of the outstanding debt under the Unit credit agreement can be fixed at a London Interbank Offered Rate (LIBOR). LIBOR interest is computed as the LIBOR base for the term plus 1.50% to 2.50% depending on the level of debt as a percentage of the borrowing base and is payable at the end of each term, or every 90 days, whichever is less. Borrowings not under LIBOR bear interest at the prime rate specified in the Unit credit agreement but in no event less than LIBOR plus 1.00% plus a margin . The credit agreement provides that if ICE Benchmark Administration no longer reports the LIBOR or Administrative Agent determines in good faith that the rate so reported no longer accurately reflects the rate available to Lender in the London Interbank Market or if such index no longer exists or accurately reflects the rate available to Administrative Agent in the London Interbank Market, Administrative Agent may select a replacement index. Interest is payable at the end of each month and the principal may be repaid in whole or in part at any time, without a premium or penalty. At March 31, 2019, we had $40.0 million outstanding borrowings under the Unit credit agreement. We can use borrowings to financ e general working capital requirements for (a) exploration, development, production, and acquisition of oil and gas properties, (b) acquisitions and operation of mid-stream assets up to certain limits, (c) issuance of standby letters of credit, (d) contract drilling services and acquisition of contract drilling equipment, and (e) general corporate purposes. The Unit credit agreement prohibits, among other things: • the payment of dividends (other than stock dividends) during any fiscal year over 30% of our consolidated net income for the preceding fiscal year; • the incurrence of additional debt with certain limited exceptions; • the creation or existence of mortgages or liens, other than those in the ordinary course of business and with certain limited exceptions, on any of our properties, except in favor of our lenders; and • investments in Unrestricted Subsidiaries (as defined in the Unit credit agreement) over $200.0 million . The Unit credit agreement also requires that we have at the end of each quarter: • a current ratio (as defined in the credit agreement) of not less than 1 to 1. • a leverage ratio of funded debt to consolidated EBITDA (as defined in the Unit credit agreement) for the most recently ended rolling four fiscal quarters of no greater than 4 to 1. As of March 31, 2019, we were in compliance with these covenants. Superior Credit Agreement. On May 10, 2018 , Superior signed a five The credit agreement provides that if ICE Benchmark Administration no longer reports the LIBOR or Administrative Agent determines in good faith that the rate so reported no longer accurately reflects the rate available to Lender in the London Interbank Market or if such index no longer exists or accurately reflects the rate available to Administrative Agent in the London Interbank Market, Administrative Agent may select a replacement index. Superior is currently charged a commitment fee of 0.375% on the amount available but not borrowed which varies based on the amount borrowed as a percentage of the total borrowing base. Superior paid $1.7 million in origination, agency, syndication, and other related fees. These fees are being amortized over the life of the Superior credit agreement. The Superior credit agreement requires that Superior maintain a Consolidated EBITDA to interest expense ratio for the most-recently ended rolling four quarters of at least 2.50 to 1.00, and a funded debt to Consolidated EBITDA ratio of not greater than 4.00 to 1.00. The agreement also contains several customary covenants that restrict (subject to certain exceptions) Superior’s ability to incur additional indebtedness, create additional liens on its assets, make investments, pay distributions, sign sale and leaseback transactions, engage in certain transactions with affiliates, engage in mergers or consolidations, sign hedging arrangements, and acquire or dispose of assets. As of March 31, 2019, Superior was in compliance with these covenants. The borrowings under the Superior credit agreement will fund capital expenditures and acquisitions, provide general working capital, and for letters of credit for Superior. As of March 31, 2019, we had no outstanding borrowings under the Superior credit agreement. Superior's credit agreement is not guaranteed by Unit. 6.625% Senior Subordinated Notes. We have an aggregate principal amount of $650.0 million, 6.625% senior subordinated notes (the Notes) outstanding. Interest on the Notes is payable semi-annually (in arrears) on May 15 and November 15 of each year. The Notes mature on May 15, 2021. In issuing the Notes, we incurred fees of $14.7 million that are being amortized as debt issuance cost over the life of the Notes. The Notes are subject to an Indenture dated as of May 18, 2011, between us and Wilmington Trust, National Association (successor to Wilmington Trust FSB), as Trustee (the Trustee), as supplemented by the First Supplemental Indenture dated as of May 18, 2011, between us, the Guarantors, and the Trustee, and as further supplemented by the Second Supplemental Indenture dated as of January 7, 2013, between us, the Guarantors, and the Trustee (as supplemented, the 2011 Indenture), establishing the terms of and providing for issuing the Notes. The Guarantors are most of our direct and indirect subsidiaries. The discussion of the Notes in this report is qualified by and subject to the actual terms of the 2011 Indenture. Unit, as the parent company, has no significant independent assets or operations. The guarantees by the Guarantors of the Notes (registered under registration statements) are full and unconditional, joint and several, subject to certain automatic customary releases, are subject to certain restrictions on the sale, disposition, or transfer of the capital stock or substantially all of the assets of a subsidiary guarantor, and other conditions and terms set out in the 2011 Indenture. Effective April 3, 2018, Superior is no longer a Guarantor of the Note s. Excluding Superior, any of our other subsidiaries that are not Guarantors are minor. The re are no significant restrictions on our ability to receive funds from any of our subsidiaries through dividends, loans, advances, or otherwise. We may redeem all or, occasionally, a part of the Notes at certain redemption prices, plus accrued and unpaid interest. If a “change of control” occurs, subject to certain conditions, we must offer to repurchase from each holder all or any part of that holder’s Notes at a purchase price in cash equal to 101% of the principal amount of the Notes plus accrued and unpaid interest to the date of purchase. The 2011 Indenture contains customary events of default. The 2011 Indenture also contains covenants including those that limit our ability and the ability of certain of our subsidiaries to incur or guarantee additional indebtedness; pay dividends on our capital stock or redeem capital stock or subordinated indebtedness; transfer or sell assets; make investments; incur liens; enter into transactions with our affiliates; and merge or consolidate with other companies. We were in compliance with all covenants of the Notes as of March 31, 2019. We may from time to time seek to retire or purchase our outstanding Note debt through cash purchases and/or exchanges for equity securities, in open market purchases, privately negotiated transactions or otherwise. Such repurchases or exchanges, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. The amounts involved may be material. Other Long-Term Liabilities Other long-term liabilities consisted of the following: March 31, December 31, (In thousands) Asset retirement obligation (ARO) liability $ 67,840 $ 64,208 Workers’ compensation 12,226 12,738 Finance lease obligations 10,395 11,380 Contract liability 9,173 9,881 Separation benefit plans 9,291 8,814 Deferred compensation plan 5,845 5,132 Gas balancing liability 3,372 3,331 118,142 115,484 Less current portion 14,310 14,250 Total other long-term liabilities $ 103,832 $ 101,234 Estimated annual principal payments under the terms of our long-term debt and other long-term liabilities during the five successive twelve-month periods beginning April 1, 2019 (and through 202 4

Asset Retirement Obligations

Asset Retirement Obligations	3 Months Ended
	Mar. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]
Asset Retirement Obligations	ASSET RETIREMENT OBLIGATIONS We are required to record the estimated fair value of the liabilities relating to the future retirement of our long-lived assets. Our oil and natural gas wells are plugged and abandoned when the oil and natural gas reserves in those wells are depleted or the wells are no longer able to produce. The plugging and abandonment liability for a well is recorded in the period in which the obligation is incurred (at the time the well is drilled or acquired). None of our assets are restricted for purposes of settling these AROs. All our AROs relate to the plugging costs associated with our oil and gas wells. The following table shows certain information about our estimated AROs for the periods indicated: Three Months Ended March 31, 2019 2018 (In thousands) ARO liability, January 1: $ 64,208 $ 69,444 Accretion of discount 562 659 Liability incurred 3,116 118 Liability settled (1,636) (1,626) Liability sold (549) (81) Revision of estimates (1) 2,139 (4,751) ARO liability, March 31: 67,840 63,763 Less current portion 1,742 1,477 Total long-term ARO $ 66,098 $ 62,286 _______________________ 1. Plugging liability estimates were revised in both 2019 and 2018 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments.

New Accounting Pronouncements

New Accounting Pronouncements	3 Months Ended
	Mar. 31, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	NEW ACCOUNTING PRONOUNCEMENTS Fair Value Measurement (Topic 820): Disclosure Framework—Changes to the Disclosure Requirements for Fair Value Measurement. The FASB issued ASU 2018-13 to modify the disclosure requirements in Topic 820. Part of the disclosures were removed or modified and other disclosures were added. The amendment will be effective for reporting periods beginning after December 15, 2019. Early adoption is permitted. Also it is permitted to early adopt any removed or modified disclosure and delay adoption of the additional disclosures until their effective date. This amendment will not have a material impact on our financial statements. Intangibles—Goodwill and Other: Simplifying the Test for Goodwill Impairment. The FASB issued ASU 2017-04, to simplify the measurement of goodwill. The amendment eliminates Step 2 from the goodwill impairment test. The amendment will be effective prospectively for reporting periods beginning after December 15, 2019, and early adoption is permitted. This amendment will not have a material impact on our financial statements. Adopted Standards Compensation—Stock Compensation: Improvements to Nonemployee Share-Based Payment Accounting. The FASB issued ASU 2018-07, to improve financial reporting for nonemployee share-based payments. The amendment expands Topic 718, Compensation—Stock Compensation to include share-based payments issued to nonemployees for goods or services. The amendment will be effective for years beginning after December 15, 2018, and interim periods within those years. This amendment did not have an impact on our financial statements. We adopted ASC 842 on January 1, 2019, using the modified retrospective method and the optional transition method to record the adoption impact through a cumulative adjustment to equity. Results for reporting periods beginning after January 1, 2019, are presented under Topic 842, while prior periods are not adjusted and continue to be reported under the accounting standards in effect for those periods. The additional disclosures required by ASC 842 have been included in Note 12 – Leases.

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	STOCK-BASED COMPENSATION For restricted stock awards and stock options, we had: Three Months Ended March 31, 2019 2018 (In millions) Recognized stock compensation expense $ 3.8 $ 5.5 Capitalized stock compensation cost for our oil and natural gas properties 0.6 0.4 Tax benefit on stock-based compensation 0.9 1.3 The remaining unrecognized compensation cost related to unvested awards at March 31, 2019 is approximately $30.4 million, of which $4.2 million is anticipated to be capitalized. The weighted average period over which this cost will be recognized is 1.0 year. Our Second Amended and Restated Unit Corporation Stock and Incentive Compensation Plan effective May 6, 2015 (the amended plan) allows us to grant stock-based and cash-based compensation to our employees (including employees of subsidiaries) and to non-employee directors. 7,230,000 shares of the company's common stock are authorized for issuance to eligible participants under the amended plan with 2,000,000 shares being the maximum number of shares that can be issued as "incentive stock options." We granted no SARs or stock options during either of the three month periods ending March 31, 2019 or 2018. This table shows the fair value of restricted stock awards granted to employees and non-employee directors during the periods indicated: Three Months Ended Three Months Ended March 31, 2019 March 31, 2018 Time Performance Vested Time Performance Vested Shares granted: Employees 925,673 424,070 839,498 362,070 Non-employee directors — — — — 925,673 424,070 839,498 362,070 Estimated fair value (in millions): (1) Employees $ 14.6 $ 7.1 $ 16.1 $ 7.3 Non-employee directors — — — — $ 14.6 $ 7.1 $ 16.1 $ 7.3 Percentage of shares granted expected to be distributed: Employees 95 % 64 % 95 % 63 % Non-employee directors N/A N/A N/A N/A _______________________ 1. The performance shares represent 100% of the grant date fair value. (We recognize the grant date fair value minus estimated forfeitures.) The time vested restricted stock awards granted during the first three months of 2019 and 2018 are being recognized over a three 9 and 2018 , two performance vested restricted stock awards were granted to certain executive officers. The first will cliff vest three three and 74% of the 2018

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	DERIVATIVES Commodity Derivatives We have signed various types of derivative transactions covering some of our projected natural gas and oil production. These transactions are intended to reduce our exposure to market price volatility by setting the price(s) we will receive for that production. Our decisions on the price(s), type, and quantity of our production subject to a derivative contract are based, in part, on our view of current and future market conditions. As of March 31, 2019, these hedges made up our derivative transactions: • Swaps. We receive or pay a fixed price for the commodity and pay or receive a floating market price to the counterparty. The fixed-price payment and the floating-price payment are netted, resulting in a net amount due to or from the counterparty. • Basis/Differential Swaps. We receive or pay the NYMEX settlement value plus or minus a fixed delivery point price for the commodity and pay or receive the published index price at the specified delivery point. We use basis/differential swaps to hedge the price risk between NYMEX and its physical delivery points. • Collars. A collar contains a fixed floor price (put) and a ceiling price (call). If the market price exceeds the call strike price or falls below the put strike price, we receive the fixed price and pay the market price. If the market price is between the call and the put strike price, no payments are due from either party. • Three-way collars. A three-way collar contains a fixed floor price (long put), fixed subfloor price (short put), and a fixed ceiling price (short call). If the market price exceeds the ceiling strike price, we receive the ceiling strike price and pay the market price. If the market price is between the ceiling and the floor strike price, no payments are due from either party. If the market price is below the floor price but above the subfloor price, we receive the floor strike price and pay the market price. If the market price is below the subfloor price, we receive the market price plus the difference between the floor and subfloor strike prices and pay the market price. We have documented policies and procedures to monitor and control the use of derivative transactions. We do not engage in derivative transactions not otherwise tied to our projected production. Any changes in the fair value of our derivative transactions before maturity (i.e., temporary fluctuations in value) are reported in gain (loss) on derivatives in our Unaudited Condensed Consolidated Income Statements. At March 31, 2019, these derivatives were outstanding: Term Commodity Contracted Volume Weighted Average Contracted Market Apr'19 – Oct'19 Natural gas – swap 60,000 MMBtu/day $2.900 IF – NYMEX (HH) Nov'19 – Dec'19 Natural gas – swap 40,000 MMBtu/day $2.900 IF – NYMEX (HH) Apr'19 – Dec'19 Natural gas – basis swap 20,000 MMBtu/day $(0.659) PEPL Apr'19 – Dec'19 Natural gas – basis swap 10,000 MMBtu/day $(0.625) NGL MIDCON Apr'19 – Dec'19 Natural gas – basis swap 30,000 MMBtu/day $(0.265) NGPL TEXOK Jan'20 – Dec'20 Natural gas – basis swap 30,000 MMBtu/day $(0.275) NGPL TEXOK Apr'19 – Dec'19 Natural gas – collar 20,000 MMBtu/day $2.63 - $3.03 IF – NYMEX (HH) Apr'19 – Dec'19 Crude oil – three-way collar 4,000 Bbl/day $61.25 - $51.25 - $72.93 WTI – NYMEX The following tables present the fair values and locations of the derivative transactions recorded in our Unaudited Condensed Consolidated Balance Sheets: Derivative Assets Fair Value Balance Sheet Location March 31, December 31, (In thousands) Commodity derivatives: Current Current derivative asset $ 3,464 $ 12,870 Long-term Non-current derivative asset — — Total derivative assets $ 3,464 $ 12,870 Derivative Liabilities Fair Value Balance Sheet Location March 31, December 31, (In thousands) Commodity derivatives: Current Current derivative liability $ — $ — Long-term Non-current derivative liability 475 293 Total derivative liabilities $ 475 $ 293 All our counterparties are subject to master netting arrangements. If we have a legal right of set-off, we net the value of the derivative transactions we have with the same counterparty in our Unaudited Condensed Consolidated Balance Sheets. Following is the effect of derivative instruments on the Unaudited Condensed Consolidated Statements of Operations for the three months ended March 31: Derivatives Instruments Location of Gain (Loss) Recognized in Amount of Gain 2019 2018 (In thousands) Commodity derivatives Loss on derivatives (1) $ (6,932) $ (6,762) Total $ (6,932) $ (6,762) _______________________ 1. Amounts settled during the 2019 and 2018 periods include net proceeds of $2.7 million and net payments of $2.1 million, respectively.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS The estimated fair value of our available-for-sale securities, reflected on our Unaudited Condensed Consolidated Balance Sheets as n on-current other assets, is based on market quotes. The following is a summary of available-for-sale securities: Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value (In thousands) Equity Securities: March 31, 2019 $ 830 $ — $ 605 $ 225 December 31, 2018 $ 830 $ — $ 636 $ 194 During the second quarter of 2017, we received available-for-sale securities for early termination fees associated with a long-term drilling contract. We evaluate the marketability of those equity securities to determine if any decline in fair value below cost is other-than-temporary. If a decline in fair value below cost is determined to be other-than-temporary, an impairment charge will be recorded, and a new cost basis established. We use several factors to determine whether a loss is other-than-temporary. These factors include, but are not limited to, (i) the time a security is in an unrealized loss position, (ii) the extent to which fair value is less than cost, (iii) the financial condition and near-term prospects of the issuer, and (iv) our intent and ability to hold the security for a period of time sufficient to allow for any anticipated recovery in fair value. Fair value is defined as the amount that would be received from the sale of an asset or paid for transferring a liability in an orderly transaction between market participants (in either case, an exit price). To estimate an exit price, a three-level hierarchy is used prioritizing the valuation techniques used to measure fair value into three levels with the highest priority given to Level 1 and the lowest priority given to Level 3. The levels are summarized as follows: • Level 1—unadjusted quoted prices in active markets for identical assets and liabilities. • Level 2—significant observable pricing inputs other than quoted prices included within level 1 either directly or indirectly observable as of the reporting date. Essentially, inputs (variables used in the pricing models) that are derived principally from or corroborated by observable market data. • Level 3—generally unobservable inputs developed based on the best information available and may include our own internal data. The inputs available to us determine the valuation technique we use to measure the fair values of our financial instruments. The following tables set forth our recurring fair value measurements: March 31, 2019 Level 1 Level 2 Level 3 Effect Net Amounts Presented (In thousands) Financial assets (liabilities): Commodity derivatives: Assets $ — $ 1,727 $ 3,098 $ (1,361) $ 3,464 Liabilities — (1,818) (18) 1,361 (475) Total commodity derivatives — (91) 3,080 — 2,989 Equity securities 225 — — — 225 $ 225 $ (91) $ 3,080 $ — $ 3,214 December 31, 2018 Level 1 Level 2 Level 3 Effect Net Amounts Presented (In thousands) Financial assets (liabilities): Commodity derivatives: Assets $ — $ 3,225 $ 10,964 $ (1,319) $ 12,870 Liabilities — (1,278) (334) 1,319 (293) Total commodity derivatives — 1,947 10,630 — 12,577 Equity securities 194 — — — 194 $ 194 $ 1,947 $ 10,630 $ — $ 12,771 All our counterparties are subject to master netting arrangements. If a legal right of set-off exists, we net the value of the derivative transactions we have with the same counterparty. We are not required to post cash collateral with our counterparties and no collateral has been posted as of March 31, 2019. We used the following methods and assumptions to estimate the fair values of the assets and liabilities in the table above. There were no transfers between Level 2 and Level 3 financial assets (liabilities). Level 1 Fair Value Measurements Equity Securities. We measure the fair values of our available for sale securities based on market quotes. Level 2 Fair Value Measurements Commodity Derivatives . We measure the fair values of our crude oil and natural gas swaps using estimated internal discounted cash flow calculations based on the NYMEX futures index. Level 3 Fair Value Measurements Commodity Derivatives . The fair values of our natural gas and crude oil collars and three-way collars are estimated using internal discounted cash flow calculations based on forward price curves, quotes obtained from brokers for contracts with similar terms, or quotes obtained from counterparties to the agreements. The following table is a reconciliation of our level 3 fair value measurements: Net Derivatives Three Months Ended March 31, 2019 2018 (In thousands) Beginning of period $ 10,630 $ (206) Total gains or losses (realized and unrealized): Included in earnings (1) (5,434) (3,919) Settlements (2,116) 919 End of period $ 3,080 $ (3,206) Total losses for the period included in earnings attributable to the change in unrealized loss relating to assets still held at end of period $ (7,550) $ (3,000) _______________________ 1. Commodity derivatives are reported in the Unaudited Condensed Consolidated Statements of Operations in gain (loss) on derivatives. The following table provides quantitative information about our Level 3 unobservable inputs at March 31, 2019: Commodity (1) Fair Value Valuation Technique Unobservable Input Range (In thousands) Oil three-way collars $ 3,096 Discounted cash flow Forward commodity price curve $0 - $7.93 Natural gas collars $ (16) Discounted cash flow Forward commodity price curve $0 - $0.13 _______________________ 1. The commodity contracts detailed in this category include non-exchange-traded crude oil three-way collars and natural gas collars that are valued based on NYMEX. The forward pricing range represents the low and high price expected to be paid or received within the settlement period. Our valuation at March 31, 2019 reflected that the risk of non-performance was immaterial. Fair Value of Other Financial Instruments This disclosure of the estimated fair value of financial instruments is made under accounting guidance for financial instruments. We have determined the estimated fair values by using market information and certain valuation methodologies. Considerable judgment is required in interpreting market data to develop the estimates of fair value. Using different market assumptions or valuation methodologies may have a material effect on our estimated fair value amounts. At March 31, 2019, the carrying values on the Unaudited Condensed Consolidated Balance Sheets for cash and cash equivalents (composed of bank and money market accounts - classified as Level 1), accounts receivable, accounts payable, other current assets, and current liabilities approximate their fair value because of their short-term nature. Based on the borrowing rates available to us for credit agreement debt with similar terms and maturities and considering the risk of our non-performance, long-term debt under the Unit and Superior credit agreements approximate their fair value and at March 31, 2019 we had $40.0 million of outstanding borrowings under the Unit and none under the Superior credit agreement s . We had no borrowing under either the Unit or Superior Credit agreements at December 31, 2018 . B orrowings under these agreements are classified as Level 2. The carrying amounts of long-term debt associated with the Notes, net of unamortized discount and debt issuance costs, reported in the Unaudited Condensed Consolidated Balance Sheets as of March 31, 2019 and December 31, 2018 were $645.0 million and $644.5 million, respectively. We estimate the fair value of the Notes using quoted marked prices at March 31, 2019 and December 31, 2018 was $626.0 million and $600.5 million, respectively. The Notes would be classified as Level 2. Fair Value of Non-Financial Instruments The initial measurement of AROs at fair value is calculated using discounted cash flow techniques and based on internal estimates of future retirement costs associated with property, plant, and equipment. Significant Level 3 inputs used in the calculation of AROs include plugging costs and remaining reserve lives. A reconciliation of the company’s AROs is presented in Note 7 – Asset Retirement Obligations.

Leases

Leases	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Leases of Lessee Disclosure	LEASES Operating Leases under ASC 840 We lease office space or yards in Edmond and Oklahoma City, Oklahoma; Houston, Texas; Englewood, Colorado; and Pinedale, Wyoming under the terms of operating leases expiring through December 2021. We own our corporate headquarters in Tulsa, Oklahoma. We also have several compressor rentals, equipment leases, and lease space on short-term commitments to stack excess drilling rig equipment and production inventory. As of December 31, 2018, future minimum rental payments under the terms of the leases under ASC 840 were approximately $4.6 million, $1.7 million, and $0.4 million in 2019 through 2021, respectively. Operating Leases under ASC 842 Adoption of Accounting Standards Codification (“ASC”) Topic 842, “Leases." We adopted Topic 842 on January 1, 2019, using the modified retrospective method and the optional transition method to record the adoption impact through a cumulative adjustment to equity. Results for reporting periods beginning after January 1, 2019, are presented under Topic 842, while prior periods are not adjusted and continue to be reported under the accounting standards in effect for those periods. We determine whether a contract is or contains a lease at inception of the contract based on whether an identified asset exists and whether we have the right to obtain substantially all of the benefit of the assets and to control its use over the full term of the agreement. When available, we use the rate implicit in the lease to discount lease payments to present value; however, most of our leases do not provide a readily determinable implicit rate. Therefore, we must estimate our incremental borrowing rate considering both the revolving credit rates and a credit notching approach to discount the lease payments based on information available at lease commencement. There are no material residual value guarantees and no restrictions or covenants included in the our lease agreements. Certain of our leases include provisions for variable payments. These variable payments are typically determined based on a measure of throughput or actual days or another measure of usage and are not included in the calculation of lease liabilities and right-of-use assets. Related to our oil and natural gas segment, our short-term lease costs include those that are recognized in profit or loss during the period and those that are capitalized as part of the cost of another asset in accordance with other U.S. GAAP. As the costs related to our drilling and production activities are reflected at our net ownership consistent with the principals of proportional consolidation, and lease commitments are generally considered gross as the operator, the costs may not reasonably reflect the Company’s short-term lease commitments. As of March 31, 2019, we had an average working interest of 87% in our operated properties. Practical Expedients and Policies Elected. We elected the hindsight expedient, which allows us to use hindsight in assessing lease term; the package of practical expedients permitted under the guidance, which among other things, allows us to carry forward the historical lease classification; and the land easement expedient, which allows us to apply the guidance prospectively at adoption for land easements on existing agreements.We applied the short-term policy election, which allows us to exclude from recognition on the balance sheet leases with an initial term of 12 months or less. We considered quantitative and qualitative factors when determining the application of the practical expedient that allowed us not to separate lease and non-lease components and are accounting for the agreements as a single lease component. We routinely enter into related party agreements between our three segments. These agreements have been evaluated under the guidance of ASC 842. Routinely, our oil and natural gas segment contracts for the use of drilling equipment from our drilling segment. We have determined that our drilling segment lessor drilling rig contracts will be accounted for under ASC 606 as the service has been deemed the predominate component of the contract per the lessor practical expedient. Adoption. Adoption of Topic 842 resulted in new operating lease assets and lease liabilities on our Unaudited Condensed Consolidated Balance Sheet of $3.7 million and $3.5 million, respectively, as of January 1, 2019, which represents noncash operating activity. The immaterial difference between the lease assets and lease liabilities was recorded as an adjustment to the beginning balance of retained earnings, which represents the cumulative impact of adopting the standard. Our accounting for finance leases remained substantially unchanged. Adoption of Topic 842 will not materially impact our Company's results of operations or cash flows. Leases. We lease certain office space, land and equipment, including pipeline equipment and office equipment. Our lease payments are generally straight-line and the exercise of lease renewal options, which vary in term, is at our sole discretion. We include renewal periods in our lease term if we are reasonably certain to exercise available renewal options. Our lease agreements do not include options to purchase the leased property. The following table shows supplemental cash flow information related to leases for the three months of March 31, 2019: Amount (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 577 Financing cash flows for finance leases 985 Lease liabilities recognized in exchange for new operating lease right of use assets 5 The following table shows information about our lease assets and liabilities included in our Unaudited Condensed Consolidated Balance Sheet as of March 31, 2019: Classification on the Consolidated Balance Sheet March 31, (In thousands) Assets Operating right of use assets Right of use assets $ 4,551 Finance right of use assets Property, plant, and equipment, net 18,886 Total right of use assets $ 23,437 Liabilities Current liabilities: Operating lease liabilities Current operating lease liabilities $ 2,369 Finance lease liabilities Current portion of other long-term liabilities 4,041 Non-current liabilities: Operating lease liabilities Operating lease liabilities 1,952 Finance lease liabilities Other long-term liabilities 6,354 Total lease liabilities $ 14,716 The following table shows certain information related to the lease costs for our finance and operating leases for the three months ended March 31, 2019: Amount (In thousands) Components of total lease cost: Amortization of finance leased assets $ 985 Interest on finance lease liabilities 111 Operating lease cost 598 Short-term lease cost (1) 9,974 Variable lease cost 106 Total lease cost $ 11,774 _______________________ 1. Short-term lease cost includes amounts capitalized related to our oil and natural gas segment of $5.7 million. The following table shows certain information related to the weighted average remaining lease terms and the weighted average discount rates for our operating and finance leases: Weighted Average Remaining Lease Term Weighted average discount rate (1) (In years) Operating leases 2.5 6.18% Finance leases 2.4 4.00% _______________________ 1. Our weighted average disc ount rates represent the rate implicit in the lease or our incremental borrowing rate for a term equal to the remaining term of the lease. The following table sets forth the maturity of our operating lease liabilities as of March 31, 2019: Amount (In thousands) Ending April 1, 2020 $ 2,582 2021 1,409 2022 550 2023 12 2024 12 2025 and beyond 84 Total future payments 4,649 Less: Interest 328 Present value of future minimum operating lease payments 4,321 Less: Current portion 2,369 Total long-term operating lease payments $ 1,952 As of March 31, 2019, we had additional leases that have not yet commenced of $1.7 million. These leases will commence in 2019 with lease terms of one three Finance Leases In 2014, Superior entered into finance lease agreements for 20 compressors with initial terms of seven other long-term liabilities in the accompanying Unaudited Condensed Consolidated Balance Sheets as of March 31, 2019. These finance leases are discounted using annual rates of 4.00%. Total maintenance and interest remaining related to these leases are $3.7 million and $0.5 million, respectively, at March 31, 2019. Annual payments, net of maintenance and interest, average $4.3 million annually through 2021. At the end of the term, Superior has the option to purchase the assets at 10% of their then fair market value. The following table sets forth the maturity of our finance lease liabilities as of March 31, 2019: Amount Ending April 1, (In thousands) 2020 $ 6,195 2021 7,841 2022 579 Total future payments 14,615 Less payments related to: Maintenance 3,695 Interest 525 Present value of future minimum finance lease payments 10,395 Less: Current portion 4,041 Total long-term finance lease payments $ 6,354

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2019
Commitments and Contingencies [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES The employee oil and gas limited partnerships require, on the election of a limited partner, that we repurchase the limited partner’s interest at amounts to be determined by appraisal. In any one year, these repurchases are limited to 20% of the units outstanding. We had no repurchases in the first three months of 2019 or 2018. We manage our exposure to environmental liabilities on properties to be acquired by identifying existing problems and assessing the potential liability. We also conduct periodic reviews, on a company-wide basis, to identify changes in our environmental risk profile. These reviews evaluate whether there is a probable liability, its amount, and the likelihood that the liability will be incurred. Any potential liability is determined by considering, among other matters, incremental direct costs of any likely remediation and the proportionate cost of employees expected to devote significant time directly to any possible remediation effort. As it relates to evaluations of purchased properties, depending on the extent of an identified environmental problem, we may exclude a property from the acquisition, require the seller to remediate the property to our satisfaction, or agree to assume liability for the remediation of the property. We have not historically experienced any environmental liability while being a contract driller since the greatest portion of that risk is borne by the operator. Any liabilities we have incurred have been small and were resolved while the drilling rig was on the location . Those cost s were in the direct cost of drilling the well. During the second quarter of 2018, as part of the Superior transaction, we entered into a contractual obligation that commits us to spend $150.0 million to drill wells in the Granite Wash/Buffalo Wallow area over three years starting January 1, 2019. This amount is included in our future drilling plans. For each dollar of the $150.0 million that we do not spend (over the three year period), we would forgo receiving $0.58 of future distributions from our 50% ownership interest in our consolidated mid-stream subsidiary. If we elected not to drill or spend any money in the designated area over the three year period, the maximum amount we could forgo from distributions would be $87.0 million. Total spent towards the $150.0 million as of March 31, 2019 was $8.3 million. For the next 12 months, we have committed to purchase approximately $4.0 million of new drilling rig components.

Variable Interest Entity Arrang

Variable Interest Entity Arrangements	3 Months Ended
	Mar. 31, 2019
Variable Interest Entity Arrangements [Abstract]
Variable Interest Entity Arrangements	VARIABLE INTEREST ENTITY ARRANGEMENTSOn April 3, 2018 we sold 50% of the ownership interest in Superior. The 50% interest in Superior we sold was acquired by SP Investor Holdings, LLC, a holding company jointly owned by OPTrust and funds managed and/or advised by Partners Group, a global private markets investment manager. Superior will be governed and managed under the Amended and Restated Limited Liability Company Agreement and the MSA. The MSA is between our affiliate, SPC Midstream Operating, L.L.C. (the Operator) and Superior. The Operator is owned 100% by Unit Corporation. Under the guidance in ASC 810, Consolidation, we have determined that Superior is a VIE. The two variable interests applicable to Unit include the 50% equity investment in Superior and the MSA. The MSA houses the power to direct the activities that most significantly impact Superior's operating performance. The MSA is a separate variable interest. Unit through the MSA has the power to direct Superior’s most significant activities; reciprocally the equity investors lack the power to direct the activities that most significantly impact the entity’s economic performance. Because of this, Unit is considered the primary beneficiary. There have been no changes to the primary beneficiary during the quarter ended March 31, 2019 . As the primary beneficiary of this VIE, we consolidate in the financial statements the financial position, results of operations and cash flows of this VIE, and all intercompany balances and transactions between us and the VIE are eliminated in the consolidated financial statements. Cash distributions of income, net of agreed on expenses, and estimated expenses are allocated to the equity owners as specified in the relevant agreements. On the sale or liquidation of Superior, distributions would occur in the order and priority specified in the relevant agreements. As the Operator, we provide services, such as operations and maintenance support, accounting, legal, and human resources to Superior for a monthly service fee of $255,970. Superior's creditors have no recourse to our general credit. Superior's credit agreement is not guaranteed by Unit. The obligations under Superior's credit agreement are secured by, among other things, mortgage liens on certain of Superior’s processing plants and gathering systems. The carrying value of Superior's assets and liabilities, after eliminations of any intercompany transactions and balances, in the consolidated balance sheets were as follows: March 31, December 31, (In thousands) Current assets: Cash and cash equivalents $ 3,128 $ 5,841 Accounts receivable 23,331 33,207 Prepaid expenses and other 2,446 1,049 Total current assets 28,905 40,097 Property and equipment: Gas gathering and processing equipment 781,970 767,388 Transportation equipment 3,264 3,086 785,234 770,474 Less accumulated depreciation, depletion, amortization, and impairment 376,006 364,740 Net property and equipment 409,228 405,734 Right of use asset 2,779 — Other assets 16,048 17,551 Total assets $ 456,960 $ 463,382 Current liabilities: Accounts payable $ 24,246 $ 32,214 Accrued liabilities 3,153 3,688 Current operating lease liability 1,702 — Current portion of other long-term liabilities 6,923 6,875 Total current liabilities 36,024 42,777 Long-term debt less debt issuance costs — — Operating lease liability 937 — Other long-term liabilities 13,048 14,687 Total liabilities $ 50,009 $ 57,464

Equity

Equity	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Equity	EQUITY Accumulated Other Comprehensive Income (Loss) Components of accumulated other comprehensive income (loss) were as follows for the three months ended March 31: 2019 2018 (In thousands) Unrealized appreciation (loss) on securities, before tax $ 31 $ (234) Tax benefit (expense) (7) 58 (1) Unrealized appreciation (loss) on securities, net of tax $ 24 $ (176) _______________________ 1. Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%. Changes in accumulated other comprehensive income by component, net of tax, for the three months ended March 31 are as follows: Net Gains on Equity Securities 2019 2018 (In thousands) Balance at December 31: $ (481) $ 63 Adjustment due to ASU 2018-02 — 13 (1) Balance at January 1: (481) 76 Unrealized appreciation (loss) before reclassifications 24 (176) (1) Amounts reclassified from accumulated other comprehensive income — — Net current-period other comprehensive income (loss) 24 (176) Balance at March 31: $ (457) $ (100) _______________________ 1. Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%.

Industry Segment Information

Industry Segment Information	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Industry Segment Information	INDUSTRY SEGMENT INFORMATION We have three main business segments offering different products and services within the energy industry: • Oil and natural gas, • Contract drilling, and • Mid-stream Our oil and natural gas segment is engaged in the acquisition, development, and production of oil, NGLs, and natural gas properties. The contract drilling segment is engaged in the land contract drilling of oil and natural gas wells and the mid-stream segment is engaged in the buying, selling, gathering, processing, and treating of natural gas and NGLs. We evaluate each segment’s performance based on its operating income, which is defined as operating revenues less operating expenses and depreciation, depletion, amortization, and impairment. We have no oil and natural gas production outside the United States. The following tables provide certain information about the operations of each of our segments: Three Months Ended March 31, 2019 Oil and Natural Gas Contract Drilling Mid-stream Other Eliminations Total Consolidated (In thousands) Revenues: (1) Oil and natural gas $ 86,095 $ — $ — $ — $ — $ 86,095 Contract drilling — 58,199 — — (7,044) 51,155 Gas gathering and processing — — 70,509 — (18,068) 52,441 Total revenues 86,095 58,199 70,509 — (25,112) 189,691 Expenses: Operating costs: Oil and natural gas 34,008 — — — (1,294) 32,714 Contract drilling — 37,385 — — (5,984) 31,401 Gas gathering and processing — — 56,129 — (16,774) 39,355 Total operating costs 34,008 37,385 56,129 — (24,052) 103,470 Depreciation, depletion, and amortization 35,767 12,699 11,726 1,934 — 62,126 Total expenses 69,775 50,084 67,855 1,934 (24,052) 165,596 General and administrative — — — 9,741 — 9,741 (Gain) loss on disposition of assets (79) 1,746 (42) (10) — 1,615 Income (loss) from operations 16,399 6,369 2,696 (11,665) (1,060) 12,739 Loss on derivatives — — — (6,932) — (6,932) Interest, net — — (336) (8,202) — (8,538) Other — — — 5 — 5 Income (loss) before income taxes $ 16,399 $ 6,369 $ 2,360 $ (26,794) $ (1,060) $ (2,726) _______________________ 1. The revenues for oil and natural gas occur at a point in time. The revenues for contract drilling and gas gathering and processing occur over time. Three Months Ended March 31, 2018 Oil and Natural Gas Contract Drilling Mid-stream Other Eliminations Total Consolidated (In thousands) Revenues: (1) Oil and natural gas $ 103,099 $ — $ — $ — $ — $ 103,099 Contract drilling — 50,710 — — (4,721) 45,989 Gas gathering and processing — — 74,650 — (18,606) 56,044 Total revenues 103,099 50,710 74,650 — (23,327) 205,132 Expenses: Operating costs: Oil and natural gas 37,152 — — — (1,190) 35,962 Contract drilling — 35,954 — — (4,287) 31,667 Gas gathering and processing — — 59,020 — (17,416) 41,604 Total operating costs 37,152 35,954 59,020 — (22,893) 109,233 Depreciation, depletion, and amortization 30,783 13,312 11,053 1,918 — 57,066 Total expenses 67,935 49,266 70,073 1,918 (22,893) 166,299 General and administrative expense — — — 10,762 — 10,762 Gain on disposition of assets (71) (26) (34) (30) — (161) Income (loss) from operations 35,235 1,470 4,611 (12,650) (434) 28,232 Loss on derivatives — — — (6,762) — (6,762) Interest, net — — (149) (9,855) — (10,004) Other — — — 6 — 6 Income (loss) before income taxes $ 35,235 $ 1,470 $ 4,462 $ (29,261) $ (434) $ 11,472 _______________________ 1. The revenues for oil and natural gas occur at a point in time. The revenues for contract drilling and gas gathering and processing occur over time .

Supplemental Condensed Consolid

Supplemental Condensed Consolidated Financial Information	3 Months Ended
	Mar. 31, 2019
Supplemental Condensed Consolidated Financial Information [Abstract]
Condensed Consolidated Financial Statements	SUPPLEMENTAL CONDENSED CONSOLIDATING FINANCIAL INFORMATION We have no significant assets or operations other than our investments in our subsidiaries. Our wholly owned subsidiaries are the guarantors of our Notes. On April 3, 2018, we sold 50% of the ownership interest in our mid-stream segment, Superior and that company and its subsidiaries are no longer guarantors of the Notes. Instead of providing separate financial statements for each subsidiary issuer and guarantor, we have included the accompanying unaudited condensed consolidating financial statements based on Rule 3-10 of the SEC's Regulation S-X. For purposes of the following footnote: • we are referred to as "Parent", • the direct subsidiaries are 100% owned by the Parent and the guarantee is full and unconditional and joint and several and referred to as "Combined Guarantor Subsidiaries", and • Superior and its subsidiaries and the Operator are referred to as "Non-Guarantor Subsidiaries." The following unaudited supplemental condensed consolidating financial information reflects the Parent's separate accounts, the combined accounts of the Combined Guarantor Subsidiaries', the combined accounts of the Non-Guarantor Subsidiaries', the combined consolidating adjustments and eliminations, and the Parent's consolidated amounts for the periods indicated. Condensed Consolidating Balance Sheets (Unaudited) March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 507 $ 256 $ 3,128 $ — $ 3,891 Accounts receivable, net of allowance for doubtful accounts of $2,531 (Guarantor of $1,326 and Parent of $1,205) 1,879 75,400 23,871 (7,275) 93,875 Materials and supplies — 495 — — 495 Current derivative asset 3,464 — — — 3,464 Income taxes receivable 243 1,811 — — 2,054 Assets held for sale — 19,728 — — 19,728 Prepaid expenses and other 2,190 2,868 2,446 — 7,504 Total current assets 8,283 100,558 29,445 (7,275) 131,011 Property and equipment: Oil and natural gas properties on the full cost method: Proved properties — 6,104,092 — — 6,104,092 Unproved properties not being amortized — 339,957 — — 339,957 Drilling equipment — 1,279,735 — — 1,279,735 Gas gathering and processing equipment — — 781,970 — 781,970 Saltwater disposal systems — 69,010 — — 69,010 Corporate land and building — 59,080 — — 59,080 Transportation equipment 9,731 17,332 3,264 — 30,327 Other 28,669 28,955 — — 57,624 38,400 7,898,161 785,234 — 8,721,795 Less accumulated depreciation, depletion, amortization, and impairment 29,057 5,820,157 376,006 — 6,225,220 Net property and equipment 9,343 2,078,004 409,228 — 2,496,575 Intercompany receivable 993,100 — — (993,100) — Goodwill — 62,808 — — 62,808 Investments 1,171,779 1,500 — (1,171,779) 1,500 Right of use asset 10 1,762 2,779 — 4,551 Other assets 8,758 7,929 16,048 — 32,735 Total assets $ 2,191,273 $ 2,252,561 $ 457,500 $ (2,172,154) $ 2,729,180 March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 10,199 $ 104,928 $ 24,176 $ (6,404) $ 132,899 Accrued liabilities 29,654 15,342 3,555 (467) 48,084 Current operating lease liability 9 658 1,702 — 2,369 Current portion of other long-term liabilities 781 6,606 6,923 — 14,310 Total current liabilities 40,643 127,534 36,356 (6,871) 197,662 Intercompany debt — 993,182 (82) (993,100) — Long-term debt less debt issuance costs 685,031 — — — 685,031 Non-current derivative liability 475 — — — 475 Operating lease liability — 1,015 937 — 1,952 Other long-term liabilities 14,356 76,831 13,048 (403) 103,832 Deferred income taxes 57,319 87,050 — — 144,369 Shareholders’ equity: Preferred stock, $1.00 par value, 5,000,000 shares authorized, none issued — — — — — Common stock, $.20 par value, 175,000,000 shares authorized, 55,467,987 shares issued 10,578 — — — 10,578 Capital in excess of par value 633,361 45,921 197,042 (242,963) 633,361 Contributions from Unit — — 1,078 (1,078) — Accumulated other comprehensive loss — (457) — — (457) Retained earnings 749,510 921,485 6,254 (927,739) 749,510 Total shareholders’ equity attributable to Unit Corporation 1,393,449 966,949 204,374 (1,171,780) 1,392,992 Non-controlling interests in consolidated subsidiaries — — 202,867 — 202,867 Total shareholders' equity 1,393,449 966,949 407,241 (1,171,780) 1,595,859 Total liabilities and shareholders’ equity $ 2,191,273 $ 2,252,561 $ 457,500 $ (2,172,154) $ 2,729,180 December 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 403 $ 208 $ 5,841 $ — $ 6,452 Accounts receivable, net of allowance for doubtful accounts of $2,531 (Guarantor of $1,326 and Parent of $1,205) 2,539 94,526 36,676 (14,344) 119,397 Materials and supplies — 473 — — 473 Current derivative asset 12,870 — — — 12,870 Income tax receivable 243 — 1,811 — — 2,054 Assets held for sale — 22,511 — — 22,511 Prepaid expenses and other 1,993 3,560 1,049 — 6,602 Total current assets 18,048 123,089 43,566 (14,344) 170,359 Property and equipment: Oil and natural gas properties on the full cost method: Proved properties — 6,018,568 — — 6,018,568 Unproved properties not being amortized — 330,216 — — 330,216 Drilling equipment — 1,284,419 — — 1,284,419 Gas gathering and processing equipment — — 767,388 — 767,388 Saltwater disposal systems — 68,339 — — 68,339 Corporate land and building — 59,081 — — 59,081 Transportation equipment 9,273 17,165 3,086 — 29,524 Other 28,584 28,923 — — 57,507 37,857 7,806,711 770,474 — 8,615,042 Less accumulated depreciation, depletion, amortization, and impairment 27,504 5,790,481 364,741 — 6,182,726 Net property and equipment 10,353 2,016,230 405,733 — 2,432,316 Intercompany receivable 950,916 — — (950,916) — Goodwill — 62,808 — — 62,808 Investments 1,160,444 1,500 — (1,160,444) 1,500 Other assets 8,225 5,293 17,552 — 31,070 Total assets $ 2,147,986 $ 2,208,920 $ 466,851 $ (2,125,704) $ 2,698,053 December 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 8,697 $ 122,610 $ 32,214 $ (13,576) $ 149,945 Accrued liabilities 28,230 16,409 5,493 (468) 49,664 Current portion of other long-term liabilities 812 6,563 6,875 — 14,250 Total current liabilities 37,739 145,582 44,582 (14,044) 213,859 Intercompany debt — 948,707 2,209 (950,916) — Long-term debt less debt issuance costs 644,475 — — — 644,475 Non-current derivative liability 293 — — — 293 Other long-term liabilities 13,134 73,713 14,687 (300) 101,234 Deferred income taxes 60,983 83,765 — — 144,748 Shareholders’ equity: Preferred stock, $1.00 par value, 5,000,000 shares authorized, none issued — — — — — Common stock, $.20 par value, 175,000,000 shares authorized, 54,055,600 shares issued 10,414 — — — 10,414 Capital in excess of par value 628,108 45,921 197,042 (242,963) 628,108 Contributions from Unit — — 792 (792) — Accumulated other comprehensive loss — (481) — — (481) Retained earnings 752,840 911,713 4,976 (916,689) 752,840 Total shareholders’ equity attributable to Unit Corporation 1,391,362 957,153 202,810 (1,160,444) 1,390,881 Non-controlling interests in consolidated subsidiaries — — 202,563 — 202,563 Total shareholders' equity 1,391,362 957,153 405,373 (1,160,444) 1,593,444 Total liabilities and shareholders’ equity $ 2,147,986 $ 2,208,920 $ 466,851 $ (2,125,704) $ 2,698,053 Condensed Consolidating Statements of Operations (Unaudited) Three Months Ended March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Revenues $ — $ 144,294 $ 70,509 $ (25,112) $ 189,691 Expenses: Operating costs — 71,393 56,129 (24,052) 103,470 Depreciation, depletion, and amortization 1,934 48,466 11,726 — 62,126 General and administrative — 9,741 — — 9,741 (Gain) loss on disposition of assets (10) 1,667 (42) — 1,615 Total operating costs 1,924 131,267 67,813 (24,052) 176,952 Income (loss) from operations (1,924) 13,027 2,696 (1,060) 12,739 Interest, net (8,202) — (336) — (8,538) Loss on derivatives (6,932) — — — (6,932) Other, net 5 — — — 5 Income (loss) before income taxes (17,053) 13,027 2,360 (1,060) (2,726) Income tax expense (benefit) (3,699) 3,255 — — (444) Equity in net earnings from investment in subsidiaries, net of taxes 9,850 — — (9,850) — Net income (loss) (3,504) 9,772 2,360 (10,910) (2,282) Less: net income attributable to non-controlling interest — — 1,222 — 1,222 Net income (loss) attributable to Unit Corporation $ (3,504) $ 9,772 $ 1,138 $ (10,910) $ (3,504) Three Months Ended March 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Revenues $ — $ 153,809 $ 74,650 $ (23,327) $ 205,132 Expenses: Operating costs — 73,106 59,020 (22,893) 109,233 Depreciation, depletion, and amortization 1,918 44,095 11,053 — 57,066 General and administrative — 8,229 2,533 — 10,762 Gain on disposition of assets (30) (97) (34) — (161) Total operating costs 1,888 125,333 72,572 (22,893) 176,900 Income (loss) from operations (1,888) 28,476 2,078 (434) 28,232 Interest, net (9,855) — (149) — (10,004) Loss on derivatives (6,762) — — — (6,762) Other, net 6 1 (1) — 6 Income (loss) before income taxes (18,499) 28,477 1,928 (434) 11,472 Income tax expense (benefit) (4,639) 7,648 598 — 3,607 Equity in net earnings from investment in subsidiaries, net of taxes 21,725 — — (21,725) — Net income attributable to Unit Corporation 7,865 20,829 1,330 (22,159) 7,865 Condensed Consolidating Statements of Comprehensive Income (Loss) (Unaudited) Three Months Ended March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Net income (loss) $ (3,504) $ 9,772 $ 2,360 $ (10,910) $ (2,282) Other comprehensive income (loss), net of taxes: Unrealized gain on securities, net of tax $7 — 24 — — 24 Comprehensive income (loss) (3,504) 9,796 2,360 (10,910) (2,258) Less: Comprehensive income attributable to non-controlling interests — — 1,222 — 1,222 Comprehensive income (loss) attributable to Unit Corporation $ (3,504) $ 9,796 $ 1,138 $ (10,910) $ (3,480) Three Months Ended March 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Net income $ 7,865 $ 20,829 $ 1,330 $ (22,159) $ 7,865 Other comprehensive income, net of taxes: Unrealized gain on securities, net of tax of ($58) — (176) — — (176) Comprehensive income 7,865 20,653 1,330 (22,159) 7,689 Less: Comprehensive income attributable to non-controlling interests — — — — — Comprehensive income attributable to Unit Corporation $ 7,865 $ 20,653 $ 1,330 $ (22,159) $ 7,689 Condensed Consolidating Statements of Cash Flows (Unaudited) Three Months Ended March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) OPERATING ACTIVITIES: Net cash provided by (used in) operating activities $ (562) $ 64,168 $ 13,506 $ (34) $ 77,078 INVESTING ACTIVITIES: Capital expenditures (321) (110,089) (12,097) — (122,507) Producing properties and other acquisitions — (1,580) — — (1,580) Proceeds from disposition of assets 10 3,142 38 — 3,190 Net cash used in investing activities (311) (108,527) (12,059) — (120,897) FINANCING ACTIVITIES: Borrowings under credit agreement 106,900 — 2,900 — 109,800 Payments under credit agreement (66,900) — (2,900) — (69,800) Intercompany borrowings (advances), net (43,103) 44,407 (1,338) 34 — Payments on finance leases — — (985) — (985) Distributions to non-controlling interest 919 — (1,837) — (918) Book overdrafts 3,161 — — — 3,161 Net cash provided by financing activities 977 44,407 (4,160) 34 41,258 Net increase (decrease) in cash and cash equivalents 104 48 (2,713) — (2,561) Cash and cash equivalents, beginning of period 403 208 5,841 — 6,452 Cash and cash equivalents, end of period $ 507 $ 256 $ 3,128 $ — $ 3,891 Three Months Ended March 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) OPERATING ACTIVITIES: Net cash provided by operating activities $ (5,452) $ 74,277 $ 14,743 $ — $ 83,568 INVESTING ACTIVITIES: Capital expenditures (56) (79,855) (10,338) — (90,249) Producing properties and other acquisitions — — — — — Proceeds from disposition of assets 30 22,028 26 — 22,084 Net cash used in investing activities (26) (57,827) (10,312) — (68,165) FINANCING ACTIVITIES: Borrowings under credit agreement 67,400 — — — 67,400 Payments under credit agreement (97,700) — — — (97,700) Intercompany borrowings (advances), net 19,880 (16,395) (3,485) — — Payments on finance leases — — (946) — (946) Book overdrafts 15,894 — — — 15,894 Net cash provided by (used in) financing activities 5,474 (16,395) (4,431) — (15,352) Net increase (decrease) in cash and cash equivalents (4) 55 — — 51 Cash and cash equivalents, beginning of period 510 191 — — 701 Cash and cash equivalents, end of period $ 506 $ 246 $ — $ — $ 752

Revenues from Contracts with Cu

Revenues from Contracts with Customers (Tables)	3 Months Ended
	Mar. 31, 2019
Revenue From Contracts with Customers [Abstract]
Contract with Customer, Asset and Liability	The following tables show the changes in our mid-stream contract asset and contract liability balances during the three months ended March 31, 2019: Contract Assets Amount (In thousands) Balance at December 31, 2018 (1) $ 13,164 Amounts invoiced in excess of revenue recognized (9) Balance at March 31, 2019 (1) $ 13,155 _______________________ 1. At December 31 , 2018, the total contract assets are included in prepaid expenses and other and other assets of $0.3 million and $12.9 million, respectively, in our Condensed Consolidated Balance Sheet. At March 31, 2019, the total contract assets included prepaid expenses and other and other assets of $1.8 million and $11.4 million, respectively, in our Condensed Consolidated Balance Sheet. Contract Liabilities Amount (In thousands) Balance at December 31, 2018 $ 9,882 Revenue recognized included in beginning balance (709) Balance at March 31, 2019 $ 9,173 _______________________ 1. At December 31, 2018, the total contract
Revenue, Remaining Performance Obligation	Included below is the additional fixed revenue we will earn over the remaining term of the contracts and excludes all variable consideration to be earned with the associated contract. Contract Remaining Term of Contract April - December 2019 2020 2021 2022 Total Remaining Impact to Revenue (In thousands) Demand fee contracts 3-4 years $ 1,932 $ (3,781) $ (3,507) $ 1,374 $ (3,982)

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2019
Earnings Per Share [Abstract]
Schedule of Earnings Per Share	Information related to the calculation of earnings (loss) per share attributable to Unit Corporation follows: Earnings (Loss) Weighted Per-Share (In thousands except per share amounts) For the three months ended March 31, 2019 Basic loss attributable to Unit Corporation per common share $ (3,504) 52,557 $ (0.07) Effect of dilutive stock options and restricted stock — — — Diluted loss attributable to Unit Corporation per common share $ (3,504) 52,557 $ (0.07) For the three months ended March 31, 2018 Basic earnings attributable to Unit Corporation per common share $ 7,865 51,730 $ 0.15 Effect of dilutive stock options and restricted stock — 542 — Diluted earnings attributable to Unit Corporation per common share $ 7,865 52,272 $ 0.15
Schedule of Antidilutive Securities Excluded From Computation of Earnings Per Share	The following table shows the number of stock options (and their average exercise price) excluded because their option exercise prices were greater than the average market price of our common stock: Three Months Ended March 31, 2019 2018 Stock options 56,000 87,500 Average exercise price $ 44.73 $ 51.34

Accrued Liabilities (Tables)

Accrued Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Accrued Liabilities [Abstract]
Accrued Liabilities	Accrued liabilities consisted of: March 31, December 31, (In thousands) Interest payable $ 17,354 $ 6,635 Employee costs 10,356 22,056 Lease operating expenses 7,961 12,756 Taxes 4,059 1,378 Third-party credits 2,974 2,129 Other 5,380 4,710 Total accrued liabilities $ 48,084 $ 49,664

Long-Term Debt And Other Long_2

Long-Term Debt And Other Long-Term Liabilities (Tables)	3 Months Ended
	Mar. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	As of the date indicated, o ur long-term debt consisted of the following: March 31, December 31, (In thousands) Unit credit agreement with an average interest rate of 4.0% at March 31, 2019 $ 40,000 $ — Superior credit agreement — — 6.625% senior subordinated notes due 2021 650,000 650,000 Total principal amount 690,000 650,000 Less: unamortized discount (1,464) (1,623) Less: debt issuance costs, net (3,505) (3,902) Total long-term debt $ 685,031 $ 644,475
Other Long-Term Liabilities	Other long-term liabilities consisted of the following: March 31, December 31, (In thousands) Asset retirement obligation (ARO) liability $ 67,840 $ 64,208 Workers’ compensation 12,226 12,738 Finance lease obligations 10,395 11,380 Contract liability 9,173 9,881 Separation benefit plans 9,291 8,814 Deferred compensation plan 5,845 5,132 Gas balancing liability 3,372 3,331 118,142 115,484 Less current portion 14,310 14,250 Total other long-term liabilities $ 103,832 $ 101,234

Asset Retirement Obligations (T

Asset Retirement Obligations (Tables)	3 Months Ended
	Mar. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]
Schedule of Asset Retirement Obligations	The following table shows certain information about our estimated AROs for the periods indicated: Three Months Ended March 31, 2019 2018 (In thousands) ARO liability, January 1: $ 64,208 $ 69,444 Accretion of discount 562 659 Liability incurred 3,116 118 Liability settled (1,636) (1,626) Liability sold (549) (81) Revision of estimates (1) 2,139 (4,751) ARO liability, March 31: 67,840 63,763 Less current portion 1,742 1,477 Total long-term ARO $ 66,098 $ 62,286 _______________________ 1. Plugging liability estimates were revised in both 2019 and 2018 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Restricted Stock Awards and Stock Options	For restricted stock awards and stock options, we had: Three Months Ended March 31, 2019 2018 (In millions) Recognized stock compensation expense $ 3.8 $ 5.5 Capitalized stock compensation cost for our oil and natural gas properties 0.6 0.4 Tax benefit on stock-based compensation 0.9 1.3
Schedule of Fair Value of the Restricted Stock Awards Granted During the Periods	This table shows the fair value of restricted stock awards granted to employees and non-employee directors during the periods indicated: Three Months Ended Three Months Ended March 31, 2019 March 31, 2018 Time Performance Vested Time Performance Vested Shares granted: Employees 925,673 424,070 839,498 362,070 Non-employee directors — — — — 925,673 424,070 839,498 362,070 Estimated fair value (in millions): (1) Employees $ 14.6 $ 7.1 $ 16.1 $ 7.3 Non-employee directors — — — — $ 14.6 $ 7.1 $ 16.1 $ 7.3 Percentage of shares granted expected to be distributed: Employees 95 % 64 % 95 % 63 % Non-employee directors N/A N/A N/A N/A _______________________ 1. The performance shares represent 100% of the grant date fair value. (We recognize the grant date fair value minus estimated forfeitures.)

Derivatives (Tables)

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives outstanding	At March 31, 2019, these derivatives were outstanding: Term Commodity Contracted Volume Weighted Average Contracted Market Apr'19 – Oct'19 Natural gas – swap 60,000 MMBtu/day $2.900 IF – NYMEX (HH) Nov'19 – Dec'19 Natural gas – swap 40,000 MMBtu/day $2.900 IF – NYMEX (HH) Apr'19 – Dec'19 Natural gas – basis swap 20,000 MMBtu/day $(0.659) PEPL Apr'19 – Dec'19 Natural gas – basis swap 10,000 MMBtu/day $(0.625) NGL MIDCON Apr'19 – Dec'19 Natural gas – basis swap 30,000 MMBtu/day $(0.265) NGPL TEXOK Jan'20 – Dec'20 Natural gas – basis swap 30,000 MMBtu/day $(0.275) NGPL TEXOK Apr'19 – Dec'19 Natural gas – collar 20,000 MMBtu/day $2.63 - $3.03 IF – NYMEX (HH) Apr'19 – Dec'19 Crude oil – three-way collar 4,000 Bbl/day $61.25 - $51.25 - $72.93 WTI – NYMEX
Fair Value of Derivative Instruments and Locations in Balance Sheets	The following tables present the fair values and locations of the derivative transactions recorded in our Unaudited Condensed Consolidated Balance Sheets: Derivative Assets Fair Value Balance Sheet Location March 31, December 31, (In thousands) Commodity derivatives: Current Current derivative asset $ 3,464 $ 12,870 Long-term Non-current derivative asset — — Total derivative assets $ 3,464 $ 12,870 Derivative Liabilities Fair Value Balance Sheet Location March 31, December 31, (In thousands) Commodity derivatives: Current Current derivative liability $ — $ — Long-term Non-current derivative liability 475 293 Total derivative liabilities $ 475 $ 293
Effect of Derivative Instruments Recognized in Income Statements, Derivative Instruments	Following is the effect of derivative instruments on the Unaudited Condensed Consolidated Statements of Operations for the three months ended March 31: Derivatives Instruments Location of Gain (Loss) Recognized in Amount of Gain 2019 2018 (In thousands) Commodity derivatives Loss on derivatives (1) $ (6,932) $ (6,762) Total $ (6,932) $ (6,762) _______________________ 1. Amounts settled during the 2019 and 2018 periods include net proceeds of $2.7 million and net payments of $2.1 million, respectively.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value of Available-for-sale Securities	The following is a summary of available-for-sale securities: Cost Gross Unrealized Gains Gross Unrealized Losses Estimated Fair Value (In thousands) Equity Securities: March 31, 2019 $ 830 $ — $ 605 $ 225 December 31, 2018 $ 830 $ — $ 636 $ 194
Recurring Fair Value Measurements	The following tables set forth our recurring fair value measurements: March 31, 2019 Level 1 Level 2 Level 3 Effect Net Amounts Presented (In thousands) Financial assets (liabilities): Commodity derivatives: Assets $ — $ 1,727 $ 3,098 $ (1,361) $ 3,464 Liabilities — (1,818) (18) 1,361 (475) Total commodity derivatives — (91) 3,080 — 2,989 Equity securities 225 — — — 225 $ 225 $ (91) $ 3,080 $ — $ 3,214 December 31, 2018 Level 1 Level 2 Level 3 Effect Net Amounts Presented (In thousands) Financial assets (liabilities): Commodity derivatives: Assets $ — $ 3,225 $ 10,964 $ (1,319) $ 12,870 Liabilities — (1,278) (334) 1,319 (293) Total commodity derivatives — 1,947 10,630 — 12,577 Equity securities 194 — — — 194 $ 194 $ 1,947 $ 10,630 $ — $ 12,771
Reconciliations Of Level 3 Fair Value Measurements	The following table is a reconciliation of our level 3 fair value measurements: Net Derivatives Three Months Ended March 31, 2019 2018 (In thousands) Beginning of period $ 10,630 $ (206) Total gains or losses (realized and unrealized): Included in earnings (1) (5,434) (3,919) Settlements (2,116) 919 End of period $ 3,080 $ (3,206) Total losses for the period included in earnings attributable to the change in unrealized loss relating to assets still held at end of period $ (7,550) $ (3,000) _______________________ 1. Commodity derivatives are reported in the Unaudited Condensed Consolidated Statements of Operations in gain (loss) on derivatives.
Schedule Of Quantitative Information About Unobservable Inputs	The following table provides quantitative information about our Level 3 unobservable inputs at March 31, 2019: Commodity (1) Fair Value Valuation Technique Unobservable Input Range (In thousands) Oil three-way collars $ 3,096 Discounted cash flow Forward commodity price curve $0 - $7.93 Natural gas collars $ (16) Discounted cash flow Forward commodity price curve $0 - $0.13 _______________________ 1. The commodity contracts detailed in this category include non-exchange-traded crude oil three-way collars and natural gas collars that are valued based on NYMEX. The forward pricing range represents the low and high price expected to be paid or received within the settlement period.

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2019
Leases [Abstract]
Supplemental cash flow information related to leases	The following table shows supplemental cash flow information related to leases for the three months of March 31, 2019: Amount (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows for operating leases $ 577 Financing cash flows for finance leases 985 Lease liabilities recognized in exchange for new operating lease right of use assets 5
Schedule of lease assets and liabilities	The following table shows information about our lease assets and liabilities included in our Unaudited Condensed Consolidated Balance Sheet as of March 31, 2019: Classification on the Consolidated Balance Sheet March 31, (In thousands) Assets Operating right of use assets Right of use assets $ 4,551 Finance right of use assets Property, plant, and equipment, net 18,886 Total right of use assets $ 23,437 Liabilities Current liabilities: Operating lease liabilities Current operating lease liabilities $ 2,369 Finance lease liabilities Current portion of other long-term liabilities 4,041 Non-current liabilities: Operating lease liabilities Operating lease liabilities 1,952 Finance lease liabilities Other long-term liabilities 6,354 Total lease liabilities $ 14,716
Schedule of lease costs	The following table shows certain information related to the lease costs for our finance and operating leases for the three months ended March 31, 2019: Amount (In thousands) Components of total lease cost: Amortization of finance leased assets $ 985 Interest on finance lease liabilities 111 Operating lease cost 598 Short-term lease cost (1) 9,974 Variable lease cost 106 Total lease cost $ 11,774 _______________________ 1. Short-term lease cost
Schedule of weighted average discount rate for leases	The following table shows certain information related to the weighted average remaining lease terms and the weighted average discount rates for our operating and finance leases: Weighted Average Remaining Lease Term Weighted average discount rate (1) (In years) Operating leases 2.5 6.18% Finance leases 2.4 4.00% _______________________ 1. Our weighted average disc ount rates represent the rate implicit in the lease or our incremental borrowing rate for a term equal to the remaining term of the lease.
Operating leases	The following table sets forth the maturity of our operating lease liabilities as of March 31, 2019: Amount (In thousands) Ending April 1, 2020 $ 2,582 2021 1,409 2022 550 2023 12 2024 12 2025 and beyond 84 Total future payments 4,649 Less: Interest 328 Present value of future minimum operating lease payments 4,321 Less: Current portion 2,369 Total long-term operating lease payments $ 1,952
Finance leases	The following table sets forth the maturity of our finance lease liabilities as of March 31, 2019: Amount Ending April 1, (In thousands) 2020 $ 6,195 2021 7,841 2022 579 Total future payments 14,615 Less payments related to: Maintenance 3,695 Interest 525 Present value of future minimum finance lease payments 10,395 Less: Current portion 4,041 Total long-term finance lease payments $ 6,354

Variable Interest Entity Arra_2

Variable Interest Entity Arrangements (Tables)	3 Months Ended
	Mar. 31, 2019
Variable Interest Entity Arrangements [Abstract]
Schedule of Assets and Liabilities	The carrying value of Superior's assets and liabilities, after eliminations of any intercompany transactions and balances, in the consolidated balance sheets were as follows: March 31, December 31, (In thousands) Current assets: Cash and cash equivalents $ 3,128 $ 5,841 Accounts receivable 23,331 33,207 Prepaid expenses and other 2,446 1,049 Total current assets 28,905 40,097 Property and equipment: Gas gathering and processing equipment 781,970 767,388 Transportation equipment 3,264 3,086 785,234 770,474 Less accumulated depreciation, depletion, amortization, and impairment 376,006 364,740 Net property and equipment 409,228 405,734 Right of use asset 2,779 — Other assets 16,048 17,551 Total assets $ 456,960 $ 463,382 Current liabilities: Accounts payable $ 24,246 $ 32,214 Accrued liabilities 3,153 3,688 Current operating lease liability 1,702 — Current portion of other long-term liabilities 6,923 6,875 Total current liabilities 36,024 42,777 Long-term debt less debt issuance costs — — Operating lease liability 937 — Other long-term liabilities 13,048 14,687 Total liabilities $ 50,009 $ 57,464

Equity (Tables)

Equity (Tables)	3 Months Ended
	Mar. 31, 2019
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income	Components of accumulated other comprehensive income (loss) were as follows for the three months ended March 31: 2019 2018 (In thousands) Unrealized appreciation (loss) on securities, before tax $ 31 $ (234) Tax benefit (expense) (7) 58 (1) Unrealized appreciation (loss) on securities, net of tax $ 24 $ (176) _______________________ 1. Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%.
Reclassification Out of Accumulated Other Comprehensive Income	Changes in accumulated other comprehensive income by component, net of tax, for the three months ended March 31 are as follows: Net Gains on Equity Securities 2019 2018 (In thousands) Balance at December 31: $ (481) $ 63 Adjustment due to ASU 2018-02 — 13 (1) Balance at January 1: (481) 76 Unrealized appreciation (loss) before reclassifications 24 (176) (1) Amounts reclassified from accumulated other comprehensive income — — Net current-period other comprehensive income (loss) 24 (176) Balance at March 31: $ (457) $ (100) _______________________ 1. Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%.

Industry Segment Information (T

Industry Segment Information (Tables)	3 Months Ended
	Mar. 31, 2019
Segment Reporting [Abstract]
Industry segment information	The following tables provide certain information about the operations of each of our segments: Three Months Ended March 31, 2019 Oil and Natural Gas Contract Drilling Mid-stream Other Eliminations Total Consolidated (In thousands) Revenues: (1) Oil and natural gas $ 86,095 $ — $ — $ — $ — $ 86,095 Contract drilling — 58,199 — — (7,044) 51,155 Gas gathering and processing — — 70,509 — (18,068) 52,441 Total revenues 86,095 58,199 70,509 — (25,112) 189,691 Expenses: Operating costs: Oil and natural gas 34,008 — — — (1,294) 32,714 Contract drilling — 37,385 — — (5,984) 31,401 Gas gathering and processing — — 56,129 — (16,774) 39,355 Total operating costs 34,008 37,385 56,129 — (24,052) 103,470 Depreciation, depletion, and amortization 35,767 12,699 11,726 1,934 — 62,126 Total expenses 69,775 50,084 67,855 1,934 (24,052) 165,596 General and administrative — — — 9,741 — 9,741 (Gain) loss on disposition of assets (79) 1,746 (42) (10) — 1,615 Income (loss) from operations 16,399 6,369 2,696 (11,665) (1,060) 12,739 Loss on derivatives — — — (6,932) — (6,932) Interest, net — — (336) (8,202) — (8,538) Other — — — 5 — 5 Income (loss) before income taxes $ 16,399 $ 6,369 $ 2,360 $ (26,794) $ (1,060) $ (2,726) _______________________ 1. The revenues for oil and natural gas occur at a point in time. The revenues for contract drilling and gas gathering and processing occur over time. Three Months Ended March 31, 2018 Oil and Natural Gas Contract Drilling Mid-stream Other Eliminations Total Consolidated (In thousands) Revenues: (1) Oil and natural gas $ 103,099 $ — $ — $ — $ — $ 103,099 Contract drilling — 50,710 — — (4,721) 45,989 Gas gathering and processing — — 74,650 — (18,606) 56,044 Total revenues 103,099 50,710 74,650 — (23,327) 205,132 Expenses: Operating costs: Oil and natural gas 37,152 — — — (1,190) 35,962 Contract drilling — 35,954 — — (4,287) 31,667 Gas gathering and processing — — 59,020 — (17,416) 41,604 Total operating costs 37,152 35,954 59,020 — (22,893) 109,233 Depreciation, depletion, and amortization 30,783 13,312 11,053 1,918 — 57,066 Total expenses 67,935 49,266 70,073 1,918 (22,893) 166,299 General and administrative expense — — — 10,762 — 10,762 Gain on disposition of assets (71) (26) (34) (30) — (161) Income (loss) from operations 35,235 1,470 4,611 (12,650) (434) 28,232 Loss on derivatives — — — (6,762) — (6,762) Interest, net — — (149) (9,855) — (10,004) Other — — — 6 — 6 Income (loss) before income taxes $ 35,235 $ 1,470 $ 4,462 $ (29,261) $ (434) $ 11,472 _______________________ 1. The revenues for oil and natural gas occur at a point in time. The revenues for contract drilling and gas gathering and processing occur over time .

Supplemental Condensed Consol_2

Supplemental Condensed Consolidating Financial Information (Tables)	3 Months Ended
	Mar. 31, 2019
Supplemental Condensed Consolidated Financial Information [Abstract]
Condensed Consolidating Balance Sheets (Unaudited)	Condensed Consolidating Balance Sheets (Unaudited) March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 507 $ 256 $ 3,128 $ — $ 3,891 Accounts receivable, net of allowance for doubtful accounts of $2,531 (Guarantor of $1,326 and Parent of $1,205) 1,879 75,400 23,871 (7,275) 93,875 Materials and supplies — 495 — — 495 Current derivative asset 3,464 — — — 3,464 Income taxes receivable 243 1,811 — — 2,054 Assets held for sale — 19,728 — — 19,728 Prepaid expenses and other 2,190 2,868 2,446 — 7,504 Total current assets 8,283 100,558 29,445 (7,275) 131,011 Property and equipment: Oil and natural gas properties on the full cost method: Proved properties — 6,104,092 — — 6,104,092 Unproved properties not being amortized — 339,957 — — 339,957 Drilling equipment — 1,279,735 — — 1,279,735 Gas gathering and processing equipment — — 781,970 — 781,970 Saltwater disposal systems — 69,010 — — 69,010 Corporate land and building — 59,080 — — 59,080 Transportation equipment 9,731 17,332 3,264 — 30,327 Other 28,669 28,955 — — 57,624 38,400 7,898,161 785,234 — 8,721,795 Less accumulated depreciation, depletion, amortization, and impairment 29,057 5,820,157 376,006 — 6,225,220 Net property and equipment 9,343 2,078,004 409,228 — 2,496,575 Intercompany receivable 993,100 — — (993,100) — Goodwill — 62,808 — — 62,808 Investments 1,171,779 1,500 — (1,171,779) 1,500 Right of use asset 10 1,762 2,779 — 4,551 Other assets 8,758 7,929 16,048 — 32,735 Total assets $ 2,191,273 $ 2,252,561 $ 457,500 $ (2,172,154) $ 2,729,180 March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 10,199 $ 104,928 $ 24,176 $ (6,404) $ 132,899 Accrued liabilities 29,654 15,342 3,555 (467) 48,084 Current operating lease liability 9 658 1,702 — 2,369 Current portion of other long-term liabilities 781 6,606 6,923 — 14,310 Total current liabilities 40,643 127,534 36,356 (6,871) 197,662 Intercompany debt — 993,182 (82) (993,100) — Long-term debt less debt issuance costs 685,031 — — — 685,031 Non-current derivative liability 475 — — — 475 Operating lease liability — 1,015 937 — 1,952 Other long-term liabilities 14,356 76,831 13,048 (403) 103,832 Deferred income taxes 57,319 87,050 — — 144,369 Shareholders’ equity: Preferred stock, $1.00 par value, 5,000,000 shares authorized, none issued — — — — — Common stock, $.20 par value, 175,000,000 shares authorized, 55,467,987 shares issued 10,578 — — — 10,578 Capital in excess of par value 633,361 45,921 197,042 (242,963) 633,361 Contributions from Unit — — 1,078 (1,078) — Accumulated other comprehensive loss — (457) — — (457) Retained earnings 749,510 921,485 6,254 (927,739) 749,510 Total shareholders’ equity attributable to Unit Corporation 1,393,449 966,949 204,374 (1,171,780) 1,392,992 Non-controlling interests in consolidated subsidiaries — — 202,867 — 202,867 Total shareholders' equity 1,393,449 966,949 407,241 (1,171,780) 1,595,859 Total liabilities and shareholders’ equity $ 2,191,273 $ 2,252,561 $ 457,500 $ (2,172,154) $ 2,729,180 December 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) ASSETS Current assets: Cash and cash equivalents $ 403 $ 208 $ 5,841 $ — $ 6,452 Accounts receivable, net of allowance for doubtful accounts of $2,531 (Guarantor of $1,326 and Parent of $1,205) 2,539 94,526 36,676 (14,344) 119,397 Materials and supplies — 473 — — 473 Current derivative asset 12,870 — — — 12,870 Income tax receivable 243 — 1,811 — — 2,054 Assets held for sale — 22,511 — — 22,511 Prepaid expenses and other 1,993 3,560 1,049 — 6,602 Total current assets 18,048 123,089 43,566 (14,344) 170,359 Property and equipment: Oil and natural gas properties on the full cost method: Proved properties — 6,018,568 — — 6,018,568 Unproved properties not being amortized — 330,216 — — 330,216 Drilling equipment — 1,284,419 — — 1,284,419 Gas gathering and processing equipment — — 767,388 — 767,388 Saltwater disposal systems — 68,339 — — 68,339 Corporate land and building — 59,081 — — 59,081 Transportation equipment 9,273 17,165 3,086 — 29,524 Other 28,584 28,923 — — 57,507 37,857 7,806,711 770,474 — 8,615,042 Less accumulated depreciation, depletion, amortization, and impairment 27,504 5,790,481 364,741 — 6,182,726 Net property and equipment 10,353 2,016,230 405,733 — 2,432,316 Intercompany receivable 950,916 — — (950,916) — Goodwill — 62,808 — — 62,808 Investments 1,160,444 1,500 — (1,160,444) 1,500 Other assets 8,225 5,293 17,552 — 31,070 Total assets $ 2,147,986 $ 2,208,920 $ 466,851 $ (2,125,704) $ 2,698,053 December 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) LIABILITIES AND SHAREHOLDERS’ EQUITY Current liabilities: Accounts payable $ 8,697 $ 122,610 $ 32,214 $ (13,576) $ 149,945 Accrued liabilities 28,230 16,409 5,493 (468) 49,664 Current portion of other long-term liabilities 812 6,563 6,875 — 14,250 Total current liabilities 37,739 145,582 44,582 (14,044) 213,859 Intercompany debt — 948,707 2,209 (950,916) — Long-term debt less debt issuance costs 644,475 — — — 644,475 Non-current derivative liability 293 — — — 293 Other long-term liabilities 13,134 73,713 14,687 (300) 101,234 Deferred income taxes 60,983 83,765 — — 144,748 Shareholders’ equity: Preferred stock, $1.00 par value, 5,000,000 shares authorized, none issued — — — — — Common stock, $.20 par value, 175,000,000 shares authorized, 54,055,600 shares issued 10,414 — — — 10,414 Capital in excess of par value 628,108 45,921 197,042 (242,963) 628,108 Contributions from Unit — — 792 (792) — Accumulated other comprehensive loss — (481) — — (481) Retained earnings 752,840 911,713 4,976 (916,689) 752,840 Total shareholders’ equity attributable to Unit Corporation 1,391,362 957,153 202,810 (1,160,444) 1,390,881 Non-controlling interests in consolidated subsidiaries — — 202,563 — 202,563 Total shareholders' equity 1,391,362 957,153 405,373 (1,160,444) 1,593,444 Total liabilities and shareholders’ equity $ 2,147,986 $ 2,208,920 $ 466,851 $ (2,125,704) $ 2,698,053
Condensed Consolidating Statements of Operations (Unaudited)	Condensed Consolidating Statements of Operations (Unaudited) Three Months Ended March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Revenues $ — $ 144,294 $ 70,509 $ (25,112) $ 189,691 Expenses: Operating costs — 71,393 56,129 (24,052) 103,470 Depreciation, depletion, and amortization 1,934 48,466 11,726 — 62,126 General and administrative — 9,741 — — 9,741 (Gain) loss on disposition of assets (10) 1,667 (42) — 1,615 Total operating costs 1,924 131,267 67,813 (24,052) 176,952 Income (loss) from operations (1,924) 13,027 2,696 (1,060) 12,739 Interest, net (8,202) — (336) — (8,538) Loss on derivatives (6,932) — — — (6,932) Other, net 5 — — — 5 Income (loss) before income taxes (17,053) 13,027 2,360 (1,060) (2,726) Income tax expense (benefit) (3,699) 3,255 — — (444) Equity in net earnings from investment in subsidiaries, net of taxes 9,850 — — (9,850) — Net income (loss) (3,504) 9,772 2,360 (10,910) (2,282) Less: net income attributable to non-controlling interest — — 1,222 — 1,222 Net income (loss) attributable to Unit Corporation $ (3,504) $ 9,772 $ 1,138 $ (10,910) $ (3,504) Three Months Ended March 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Revenues $ — $ 153,809 $ 74,650 $ (23,327) $ 205,132 Expenses: Operating costs — 73,106 59,020 (22,893) 109,233 Depreciation, depletion, and amortization 1,918 44,095 11,053 — 57,066 General and administrative — 8,229 2,533 — 10,762 Gain on disposition of assets (30) (97) (34) — (161) Total operating costs 1,888 125,333 72,572 (22,893) 176,900 Income (loss) from operations (1,888) 28,476 2,078 (434) 28,232 Interest, net (9,855) — (149) — (10,004) Loss on derivatives (6,762) — — — (6,762) Other, net 6 1 (1) — 6 Income (loss) before income taxes (18,499) 28,477 1,928 (434) 11,472 Income tax expense (benefit) (4,639) 7,648 598 — 3,607 Equity in net earnings from investment in subsidiaries, net of taxes 21,725 — — (21,725) — Net income attributable to Unit Corporation 7,865 20,829 1,330 (22,159) 7,865
Condensed Consolidating Statements of Comprehensive Income (Loss) (Unaudited)	Condensed Consolidating Statements of Comprehensive Income (Loss) (Unaudited) Three Months Ended March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Net income (loss) $ (3,504) $ 9,772 $ 2,360 $ (10,910) $ (2,282) Other comprehensive income (loss), net of taxes: Unrealized gain on securities, net of tax $7 — 24 — — 24 Comprehensive income (loss) (3,504) 9,796 2,360 (10,910) (2,258) Less: Comprehensive income attributable to non-controlling interests — — 1,222 — 1,222 Comprehensive income (loss) attributable to Unit Corporation $ (3,504) $ 9,796 $ 1,138 $ (10,910) $ (3,480) Three Months Ended March 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) Net income $ 7,865 $ 20,829 $ 1,330 $ (22,159) $ 7,865 Other comprehensive income, net of taxes: Unrealized gain on securities, net of tax of ($58) — (176) — — (176) Comprehensive income 7,865 20,653 1,330 (22,159) 7,689 Less: Comprehensive income attributable to non-controlling interests — — — — — Comprehensive income attributable to Unit Corporation $ 7,865 $ 20,653 $ 1,330 $ (22,159) $ 7,689
Condensed Consolidating Statements of Cash Flows (Unaudited)	Condensed Consolidating Statements of Cash Flows (Unaudited) Three Months Ended March 31, 2019 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) OPERATING ACTIVITIES: Net cash provided by (used in) operating activities $ (562) $ 64,168 $ 13,506 $ (34) $ 77,078 INVESTING ACTIVITIES: Capital expenditures (321) (110,089) (12,097) — (122,507) Producing properties and other acquisitions — (1,580) — — (1,580) Proceeds from disposition of assets 10 3,142 38 — 3,190 Net cash used in investing activities (311) (108,527) (12,059) — (120,897) FINANCING ACTIVITIES: Borrowings under credit agreement 106,900 — 2,900 — 109,800 Payments under credit agreement (66,900) — (2,900) — (69,800) Intercompany borrowings (advances), net (43,103) 44,407 (1,338) 34 — Payments on finance leases — — (985) — (985) Distributions to non-controlling interest 919 — (1,837) — (918) Book overdrafts 3,161 — — — 3,161 Net cash provided by financing activities 977 44,407 (4,160) 34 41,258 Net increase (decrease) in cash and cash equivalents 104 48 (2,713) — (2,561) Cash and cash equivalents, beginning of period 403 208 5,841 — 6,452 Cash and cash equivalents, end of period $ 507 $ 256 $ 3,128 $ — $ 3,891 Three Months Ended March 31, 2018 Parent Combined Guarantor Subsidiaries Combined Non-Guarantor Subsidiaries Consolidating Adjustments Total Consolidated (In thousands) OPERATING ACTIVITIES: Net cash provided by operating activities $ (5,452) $ 74,277 $ 14,743 $ — $ 83,568 INVESTING ACTIVITIES: Capital expenditures (56) (79,855) (10,338) — (90,249) Producing properties and other acquisitions — — — — — Proceeds from disposition of assets 30 22,028 26 — 22,084 Net cash used in investing activities (26) (57,827) (10,312) — (68,165) FINANCING ACTIVITIES: Borrowings under credit agreement 67,400 — — — 67,400 Payments under credit agreement (97,700) — — — (97,700) Intercompany borrowings (advances), net 19,880 (16,395) (3,485) — — Payments on finance leases — — (946) — (946) Book overdrafts 15,894 — — — 15,894 Net cash provided by (used in) financing activities 5,474 (16,395) (4,431) — (15,352) Net increase (decrease) in cash and cash equivalents (4) 55 — — 51 Cash and cash equivalents, beginning of period 510 191 — — 701 Cash and cash equivalents, end of period $ 506 $ 246 $ — $ — $ 752

Basis of Preparation and Pres_2

Basis of Preparation and Presentation (Narrative) (Details)	3 Months Ended
	Mar. 31, 2019
Basis of Preparation and Presentation [Abstract]
Consolidation, Variable Interest Entity, Policy [Policy Text Block]	We consolidate the activities of Superior Pipeline Company, L.L.C. (Superior), a 50/50 joint venture between Unit Corporation and SP Investor Holdings, LLC, which qualifies as a Variable Interest Entity (VIE) under generally accepted accounting principles in the United States (GAAP). We have concluded that we are the primary beneficiary of the VIE, as defined in the accounting standards, since we have the power, through our 50% ownership, to direct those activities that most significantly affect the economic performance of Superior as further described in Note 14 – Variable Interest Entity Arrangements.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Contract with Customer, Asset and Liability) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Contract liability	$ 9,173	$ 9,881
Mid-Stream [Member]
Disaggregation of Revenue [Line Items]
Contract assets	13,155	13,164
Amounts invoiced in excess of revenue recognized	(9)
Contract with Customer, Asset, Net, Current	1,800	300
Contract with Customer, Asset, Net, Noncurrent	11,400	12,900
Contract liability	9,173	9,882
Contract with Customer, Liability, Revenue Recognized	(709)
Contract with Customer, Liability, Current	2,900	2,900
Contract with Customer, Liability, Noncurrent	$ 6,300	$ 7,000

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Revenue, Remaining Performance Obligation) (Details) - Mid-Stream [Member] $ in Thousands	Mar. 31, 2019USD ($)
Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Term of Contract	3 years
Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Term of Contract	4 years
Demand fee contracts [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Impact to Revenue	$ (3,982)
Demand fee contracts [Member] | April - December 2019
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Impact to Revenue	1,932
Demand fee contracts [Member] | 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Impact to Revenue	(3,781)
Demand fee contracts [Member] | 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Impact to Revenue	(3,507)
Demand fee contracts [Member] | 2022
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Remaining Impact to Revenue	$ 1,374

Revenue from Contracts with C_4

Revenue from Contracts with Customer (Narrative) (Details) - Drilling [Member]	3 Months Ended
	Mar. 31, 2019contract
Segment Reporting Information [Line Items]
Number of Contracts, Daywork	32
Short-term Contract with Customer [Member]
Segment Reporting Information [Line Items]
Contract Duration	2 months
Long-term Contract with Customer [Member]
Segment Reporting Information [Line Items]
Contract Duration	3 years

Divestitures (Narrative) (Detai

Divestitures (Narrative) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2018USD ($)rig
Segment Reporting Information [Line Items]
Gain (loss) on Disposition of Assets	$ (1,615)	$ 161
Assets held for sale	19,728		$ 22,511
Oil and Natural Gas [Member]
Segment Reporting Information [Line Items]
Proceeds from non-core oil and natural gas asset sales, net of related expenses	600	21,700
Gain (loss) on Disposition of Assets	79	71
Drilling [Member]
Segment Reporting Information [Line Items]
Number of drilling rigs removed from service | rig			41
Contract drilling impairment			$ 147,900
Gain (loss) on Disposition of Assets	(1,746)	$ 26
Assets Held for Sale Drilling Equipment [Member]
Segment Reporting Information [Line Items]
Net book value of assets held for sale that were sold	2,800
Gain (loss) on Disposition of Assets	$ (600)

Earnings Per Share (Schedule of

Earnings Per Share (Schedule of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Earnings Per Share [Abstract]
Earnings (loss) of basic earnings (loss) attributable to Unit Corporation per common share	$ (3,504)	$ 7,865
Income of effect of dilutive stock options and restricted stock	0	0
Earnings (loss) of diluted income (loss) attributable to Unit Corporation per common share	$ (3,504)	$ 7,865
Weighted shares of basic earnings (loss) attributable to Unit Corporation per common share	52,557	51,730
Weighted shares of effect of dilutive stock options and restricted stock	0	542
Weighted shares of diluted earnings (loss) attributable to Unit Corporation per common share	52,557	52,272
Per-Share amount of basic earnings (loss) attributable to Unit Corporation per common share	$ (0.07)	$ 0.15
Per-Share amount of effect of dilutive stock options and restricted stock	0	0
Per-Share amount of diluted earnings (loss) attributable to Unit Corporation per common share	$ (0.07)	$ 0.15

Earnings Per Share (Schedule _2

Earnings Per Share (Schedule of Antidilutive Securities Excluded From Computation of Earnings Per Share) (Details) - Stock options [Member] - $ / shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	56,000	87,500
Average exercise price	$ 44.73	$ 51.34

Earnings (Loss) Per Share (Narr

Earnings (Loss) Per Share (Narrative) (Details)	3 Months Ended
	Mar. 31, 2019shares
Restricted stock and stock options [Member]
Debt and Equity Securities, FV-NI [Line Items]
Antidilutive securities excluded from computation of earnings per share	279,000

Accrued Liabilities (Accrued Li

Accrued Liabilities (Accrued Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accrued Liabilities [Abstract]
Interest payable	$ 17,354	$ 6,635
Employee costs	10,356	22,056
Lease operating expenses	7,961	12,756
Taxes	4,059	1,378
Third-party credits	2,974	2,129
Other	5,380	4,710
Total accrued liabilities	$ 48,084	$ 49,664

Long-Term Debt And Other Long_3

Long-Term Debt And Other Long-Term Liabilities (Long-Term Debt) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total principal amount	$ 690,000	$ 650,000
Less: unamortized discount	(1,464)	(1,623)
Less: debt issuance costs, net	(3,505)	(3,902)
Total long-term debt	$ 685,031	644,475
Interest percentage of senior subordinated notes	6.625%
Debt instrument maturity date	May 15, 2021
6.625% Senior Subordinated Notes Due 2021 [Member]
Debt Instrument [Line Items]
6.625% senior subordinated notes due 2021	$ 650,000	650,000
Interest percentage of senior subordinated notes	6.625%
Debt instrument maturity date	May 15, 2021
Unit Credit Agreement [Member]
Debt Instrument [Line Items]
Credit agreement	$ 40,000	$ 0
Revolving credit facility interest rate	4.00%	0.00%
Superior Credit Agreement [Member]
Debt Instrument [Line Items]
Credit agreement	$ 0	$ 0
Revolving credit facility interest rate	0.00%	0.00%

Long-Term Debt And Other Long_4

Long-Term Debt And Other Long-Term Liabilities (Other Long-Term Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Debt Disclosure [Abstract]
Asset retirement obligation (ARO) liability	$ 67,840	$ 64,208	$ 63,763	$ 69,444
Workers' compensation	12,226	12,738
Finance lease obligations	10,395	11,380
Contract liability	9,173	9,881
Separation benefit plans	9,291	8,814
Deferred compensation plan	5,845	5,132
Gas balancing liability	3,372	3,331
Other liabilities	118,142	115,484
Current portion of other long-term liabilities	14,310	14,250
Other long-term liabilities	$ 103,832	$ 101,234

Long-Term Debt And Other Long_5

Long-Term Debt And Other Long-Term Liabilities (Narrative) (Details) - USD ($) $ in Thousands	May 02, 2018	Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Interest percentage of senior subordinated notes		6.625%
Debt instrument maturity date		May 15, 2021
Estimated principal payments in year 1		$ 14,300
Estimated principal payments in year 2		47,800
Estimated principal payments in year 3		656,900
Estimated principal payments in year 4		3,600
Estimated principal payments in year 5		42,300
6.625% Senior Subordinated Notes Due 2021 [Member]
Debt Instrument [Line Items]
Aggregate principal amount		$ 650,000	$ 650,000
Interest percentage of senior subordinated notes		6.625%
Debt instrument maturity date		May 15, 2021
Original debt issuance fees		$ 14,700
Senior notes repurchase price in percentage		101.00%
Unit Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility maximum credit amount		$ 1,000,000
Commitment fee percentage under credit facility		0.375%
Origination, agency and syndication and other related fees with the credit agreement		$ 3,300
Payable assessment term for LIBOR		90 days
LIBOR interest rate plus one percent		LIBOR plus 1.00% plus a margin
Line of credit facility, amount outstanding		$ 40,000	0
Unit Credit Agreement, Dividend Restrictions		the payment of dividends (other than stock dividends) during any fiscal year over 30% of our consolidated net income for the preceding fiscal year;
Unit Credit Agreement, Asset Restrictions		investments in Unrestricted Subsidiaries (as defined in the Unit credit agreement) over $200.0 million
Current ratio of credit facility		1 to 1
Leverage ratio of credit facility		4 to 1
Covenant Compliance		As of March 31, 2019, we were in compliance with these covenants.
Unit Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate		1.50%
Unit Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
LIBOR plus interest rate		2.50%
Unit Credit Agreement [Member] | Line Of Credit Facility Commitment Amount [Member]
Debt Instrument [Line Items]
Credit facility current credit amount		$ 425,000
Unit Credit Agreement [Member] | Line Of Credit Facility Lender Determined Amount [Member]
Debt Instrument [Line Items]
Credit facility current credit amount		$ 425,000
Unit Credit Agreement [Member] | Proved developed producing total value of our oil and gas properties [Member]
Debt Instrument [Line Items]
Percentage of collateral pledged		80.00%
Present worth discounted		8.00%
Superior Credit Agreement [Member]
Debt Instrument [Line Items]
Credit facility maximum credit amount		$ 250,000
Credit facility current credit amount		$ 200,000
Commitment fee percentage under credit facility		0.375%
Origination, agency and syndication and other related fees with the credit agreement		$ 1,700
Line of credit facility, amount outstanding		$ 0	$ 0
Covenant Compliance		As of March 31, 2019, Superior was in compliance with these covenants.
Superior Credit Agreement, Term		5 years
Superior Credit Agreement, Interest Rate Description		annual interest at a rate, at Superior’s option, equal to (a) LIBOR plus the applicable margin of 2.00% to 3.25% or (b) the alternate base rate (greater of (i) the federal funds rate plus 0.5%, (ii) the prime rate, and (iii) third day LIBOR plus 1.00%) plus the applicable margin of 1.00% to 2.25%.
Superior Credit Agreement [Member] | Minimum [Member]
Debt Instrument [Line Items]
Consolidated EBITDA to interest expense ratio		2.50 to 1.00
Superior Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Funded debt to consolidated EBITDA ratio		4.00 to 1.00
Pledge agreement [Member] | Unit Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Collateral	we granted a security interest in the limited liability membership interests and other equity interests we own in Superior (which as of this report is 50% of the aggregate outstanding equity interests of Superior

Asset Retirement Obligations (S

Asset Retirement Obligations (Schedule Of Asset Retirement Obligations) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Asset Retirement Obligation Disclosure [Abstract]
ARO liability, January 1:	$ 64,208	$ 69,444
Accretion of discount	562	659
Liability incurred	3,116	118
Liability settled	(1,636)	(1,626)
Liability sold	(549)	(81)
Revision of estimates	2,139	(4,751)
ARO liability, March 31:	67,840	63,763
Less current portion	1,742	1,477
Total long-term ARO	$ 66,098	$ 62,286

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule of Restricted Stock Awards and Stock Options) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Abstract]
Recognized stock compensation expense	$ 3.8	$ 5.5
Capitalized stock compensation cost for our oil and natural gas properties	0.6	0.4
Tax benefit on stock based compensation	$ 0.9	$ 1.3

Stock-Based Compensation (Sch_2

Stock-Based Compensation (Schedule of Fair Value of the Restricted Stock Awards Granted During the Periods) (Details) - Restricted Stock [Member] - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Time Vested [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		925,673	839,498
Estimated fair value (in millions)	[1]	$ 14.6	$ 16.1
Time Vested [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		925,673	839,498
Estimated fair value (in millions)	[1]	$ 14.6	$ 16.1
Percentage of shares granted expected to be distributed		95.00%	95.00%
Time Vested [Member] | Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		0	0
Estimated fair value (in millions)	[1]	$ 0	$ 0
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		424,070	362,070
Estimated fair value (in millions)	[1]	$ 7.1	$ 7.3
Performance Shares [Member] | Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		424,070	362,070
Estimated fair value (in millions)	[1]	$ 7.1	$ 7.3
Percentage of shares granted expected to be distributed		64.00%	63.00%
Performance Shares [Member] | Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		0	0
Estimated fair value (in millions)	[1]	$ 0	$ 0
[1]	The performance shares represent 100% of the grant date fair value. (We recognize the grant date fair value minus estimated forfeitures.)

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	May 06, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested awards	$ 30.4
Unrecognized compensation cost, expected to be capitalized	$ 4.2
Weighted average years over which this cost will be recognized	1 year
Increase in stock compensation expense due to the restricted stock awards granted	$ 1
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0	0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized			7,230,000
Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized			2,000,000
Stock Performance Measures [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	0.00%
Stock Performance Measures [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	200.00%
Cash flow to total assets performance [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	0.00%
Cash flow to total assets performance [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	200.00%
Cash flow to total assets performance [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	100.00%
Time Vested [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Shares granted	925,673	839,498
Performance Shares [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	424,070	362,070
Performance Shares [Member] | Cash flow to total assets performance [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Cliff vest [Member] | Performance Shares [Member] | Stock Performance Measures [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
2019 [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	28.00%
2018 [Member] | Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance percentage criteria	74.00%

Derivatives (Schedule of Deriva

Derivatives (Schedule of Derivatives Outstanding) (Details)	3 Months Ended
	Mar. 31, 2019$ / UnitMMBTUbbl
Swap [Member] | Apr'19 - Oct'19 [Member] | Natural Gas [Member] | IF - NYMEX (HH) [Member]
Derivative [Line Items]
Weighted average price	2.900
Hedged volume (MMBtu/day) | MMBTU	60,000
Swap [Member] | Nov'19 - Dec'19 [Member] | Natural Gas [Member] | IF - NYMEX (HH) [Member]
Derivative [Line Items]
Weighted average price	2.900
Hedged volume (MMBtu/day) | MMBTU	40,000
Basis swap [Member] | Apr'19 - Dec'19 [Member] | Natural Gas [Member] | PEPL [Member]
Derivative [Line Items]
Weighted average price	(0.659)
Hedged volume (MMBtu/day) | MMBTU	20,000
Basis swap [Member] | Apr'19 - Dec'19 [Member] | Natural Gas [Member] | NGPL Midcon [Member]
Derivative [Line Items]
Weighted average price	(0.625)
Hedged volume (MMBtu/day) | MMBTU	10,000
Basis swap [Member] | Apr'19 - Dec'19 [Member] | Natural Gas [Member] | NGPL Texok [Member]
Derivative [Line Items]
Weighted average price	(0.265)
Hedged volume (MMBtu/day) | MMBTU	30,000
Basis swap [Member] | Jan'20 - Dec'20 [Member] | Natural Gas [Member] | NGPL Texok [Member]
Derivative [Line Items]
Weighted average price	(0.275)
Hedged volume (MMBtu/day) | MMBTU	30,000
Collar [Member] | Apr'19 - Dec'19 [Member] | Natural Gas [Member] | IF - NYMEX (HH) [Member]
Derivative [Line Items]
Hedged volume (MMBtu/day) | MMBTU	20,000
Cap Price	3.03
Floor Price	2.63
Three-way collar [Member] | Apr'19 - Dec'19 [Member] | Crude Oil [Member] | WTI - NYMEX [Member]
Derivative [Line Items]
Hedged volume (Bbl/day) | bbl	4,000
Cap Price	72.93
Subfloor price	51.25
Floor Price	61.25

Derivatives (Fair Value of Deri

Derivatives (Fair Value of Derivative Instruments and Locations in Balance Sheets) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Current derivative asset	$ 3,464	$ 12,870
Non-current derivative asset	0	0
Total derivatives assets	3,464	12,870
Current derivative liability	0	0
Non-current derivative liability	(475)	(293)
Total derivative liabilities	$ (475)	$ (293)

Derivatives (Effect of Derivati

Derivatives (Effect of Derivative Instruments Recognized in Income Statements, Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Loss on derivatives	$ (6,932)	$ (6,762)
Commodity Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss on derivatives	(6,932)	(6,762)
Amount of gains (loss) settled during the period	2,700	(2,100)
Loss on derivatives [Member] | Commodity Derivatives [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Loss on derivatives	$ (6,932)	$ (6,762)

Fair Value Measurements (Fair V

Fair Value Measurements (Fair Value of Available-for-sale Securities) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Cost	$ 830	$ 830
Gross unrealized gains	0	0
Gross unrealized losses	605	636
Available-for-sale Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value	225	194
Available-for-sale Securities [Member] | Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value	$ 225	$ 194

Fair Value Measurements (Recurr

Fair Value Measurements (Recurring Fair Value Measurements) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	$ 3,464	$ 12,870
Derivative Liability	(475)	(293)
Financial assets (liabilities)	3,214	12,771
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets (liabilities)	225	194
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets (liabilities)	(91)	1,947
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets (liabilities)	3,080	10,630
Effect of Netting [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial assets (liabilities)	0	0
Commodity Derivatives [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Asset	3,464	12,870
Derivative Liability	(475)	(293)
Total commodity derivatives	2,989	12,577
Commodity Derivatives [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gross Assets	0	0
Gross Liabilities	0	0
Total commodity derivatives	0	0
Commodity Derivatives [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gross Assets	1,727	3,225
Gross Liabilities	(1,818)	(1,278)
Total commodity derivatives	(91)	1,947
Commodity Derivatives [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Gross Assets	3,098	10,964
Gross Liabilities	(18)	(334)
Total commodity derivatives	3,080	10,630
Commodity Derivatives [Member] | Effect of Netting [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Effect of netting on assets	(1,361)	(1,319)
Effect of netting on liabilities	1,361	1,319
Total commodity derivatives	0	0
Available-for-sale Securities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	225	194
Available-for-sale Securities [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	225	194
Available-for-sale Securities [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	0	0
Available-for-sale Securities [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	0	0
Available-for-sale Securities [Member] | Effect of Netting [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	$ 0	$ 0

Fair Value Measurements (Reconc

Fair Value Measurements (Reconciliations Of Level 3 Fair Value Measurements) (Details) - Level 3 [Member] - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Beginning of period		$ 10,630	$ (206)
Included in earnings	[1]	(5,434)	(3,919)
Settlements		(2,116)	919
End of period		3,080	(3,206)
Total losses for the period included in earnings attributable to the change in unrealized gain relating to assets still held at end of period		$ (7,550)	$ (3,000)
[1]	Commodity derivatives are reported in the Unaudited Condensed Consolidated Statements of Operations in gain (loss) on derivatives.

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Quantitative Information About Unobservable Inputs) (Details) - Level 3 [Member] $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)$ / Unit
Oil [Member] | Three-way collar [Member]
Derivative fair value | $	$ 3,096
Unobservable Input	Forward commodity price curve
Oil [Member] | Three-way collar [Member] | Minimum [Member]
Forward commodity price curve	0
Oil [Member] | Three-way collar [Member] | Maximum [Member]
Forward commodity price curve	7.93
Natural Gas [Member] | Collar [Member]
Derivative fair value | $	$ (16)
Unobservable Input	Forward commodity price curve
Natural Gas [Member] | Collar [Member] | Minimum [Member]
Forward commodity price curve	0
Natural Gas [Member] | Collar [Member] | Maximum [Member]
Forward commodity price curve	0.130

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Collateral posted	$ 0
6.625% senior subordinated notes due 2021	645,000	$ 644,500
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of long-term debt	626,000	600,500
Unit Credit Agreement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Line of credit facility, amount outstanding	40,000	0
Superior Credit Agreement [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Line of credit facility, amount outstanding	$ 0	$ 0

Leases (Supplemental cash flow

Leases (Supplemental cash flow information related to leases) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Operating cash flows for operating leases	$ 577
Financing cash flows for finance leases	985
Lease liabilities recognized in exchange for new operating lease right of use assets	$ 5

Leases (Schedule of lease asset

Leases (Schedule of lease assets and liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Leases [Abstract]
Operating right of use asset	$ 4,551	$ 0
Finance right of use assets	18,886
Total right of use assets	23,437
Current operating lease liability	2,369	0
Current finance lease liability	4,041
Operating lease liability	1,952	$ 0
Finance lease liability	6,354
Total lease liability	$ 14,716

Leases (Schedule of lease costs

Leases (Schedule of lease costs) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)
Leases [Abstract]
Amortization of finance leased assets	$ 985
Interest on finance lease liabilities	111
Operating lease cost	598
Short-term lease cost	9,974	[1]
Variable lease cost	106
Total lease cost	11,774
Capitalized costs included in short-term lease costs	$ 5,700
[1]	Short-term lease cost includes amounts capitalized related to our oil and natural gas segment of $5.7 million.

Leases (Schedule of weighted av

Leases (Schedule of weighted average discount rate for leases) (Details)	Mar. 31, 2019
Leases [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	2 years 6 months
Operating Lease, Weighted Average Discount Rate, Percent	6.18%	[1]
Finance Lease, Weighted Average Remaining Lease Term	2 years 4 months 24 days
Finance Lease, Weighted Average Discount Rate, Percent	4.00%	[1]
[1]	Our weighted average disc ount rates represent the rate implicit in the lease or our incremental borrowing rate for a term equal to the remaining term of the lease.

Leases (Operating leases) (Deta

Leases (Operating leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Ending with April 1,
2020	$ 2,582
2021	1,409
2022	550
2023	12
2024	12
2025 and beyond	84
Total future payments	4,649
Less: Interest	328
Present value of future minimum operating lease payments	4,321
Less: current portion	(2,369)	$ 0
Operating lease liability	$ 1,952	$ 0

Leases (Finance leases) (Detail

Leases (Finance leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Ending April 1,
2020	$ 6,195
2021	7,841
2022	579
Total future payments	14,615
Less payments related to:
Maintenance	3,695
Interest	525
Present value of future minimum finance lease payments	10,395	$ 11,380
Less: Current portion	(4,041)
Total long-term finance lease payments	$ 6,354

Leases (Narrative) (Details)

Leases (Narrative) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019USD ($)	Jan. 01, 2019USD ($)	Dec. 31, 2018USD ($)
Adoption of ASC842 [Line Items]
Operating leases under ASC 840 future minimum payments due in next year			$ 4,600
Operating leases under ASC 840 future minimum payments due in two years			1,700
Operating leases under ASC 840 future minimum payments due in three years			400
Average working interest in operated properties	87.00%
Operating right of use asset	$ 4,551		$ 0
Total operating lease liability	4,321
Operating lease liability not yet commenced	$ 1,700
Number of compressors under finance lease agreement	20
Finance lease term	7 years
Finance Lease Obligations, Current	$ 4,000
Finance Lease Obligations, Noncurrent	$ 6,400
Discount rate finance leases	4.00%
Maintenance	$ 3,695
Interest	525
Finance leases, future minimum payments, average annual payment	$ 4,300
Finance lease fair market value percentage for purchase	10.00%
Accounting Standards Update 2016-02 [Member]
Adoption of ASC842 [Line Items]
Operating right of use asset		$ 3,700
Total operating lease liability		$ 3,500
Minimum [Member]
Adoption of ASC842 [Line Items]
Term of contract for operating lease liabilities not yet commenced	1 year
Maximum [Member]
Adoption of ASC842 [Line Items]
Term of contract for operating lease liabilities not yet commenced	3 years

Commitments and Contingencies (

Commitments and Contingencies (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Long-term Purchase Commitment [Line Items]
Percentage of repurchase of limited units outstanding	20.00%
Repurchase Of Limited Units Outstanding Amount	$ 0	$ 0
Drilling Equipment [Member]
Long-term Purchase Commitment [Line Items]
Other Commitment, Due in Next Twelve Months	$ 4,000,000
Capital Addition Purchase Commitments [Member] | Oil and Natural Gas [Member]
Long-term Purchase Commitment [Line Items]
Long-term Purchase Commitment, Description	as part of the Superior transaction, we entered into a contractual obligation that commits us to spend $150.0 million to drill wells in the Granite Wash/Buffalo Wallow area over three years starting January 1, 2019. This amount is included in our future drilling plans. For each dollar of the $150.0 million that we do not spend (over the three year period), we would forgo receiving $0.58 of future distributions from our 50% ownership interest in our consolidated mid-stream subsidiary. If we elected not to drill or spend any money in the designated area over the three year period, the maximum amount we could forgo from distributions would be $87.0 million.
Long-term Purchase Commitment, Amount	$ 150,000,000
Long-term Purchase Commitment, Period	3 years
Long-term purchase commitment, purchases made	$ 8,300,000

Variable Interest Entity Arra_3

Variable Interest Entity Arrangements (Schedule of Assets and Liabilities) (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents		$ 3,891	$ 6,452	$ 752	$ 701
Accounts receivable, net of allowance for doubtful accounts		93,875	119,397
Prepaid expenses and other		7,504	6,602
Total current assets		131,011	170,359
Property and equipment:
Gas gathering and processing equipment		781,970	767,388
Transportation equipment		30,327	29,524
Property, plant, and equipment, gross		8,721,795	8,615,042
Less accumulated depreciation, depletion, amortization, and impairment		6,225,220	6,182,726
Net property and equipment		2,496,575	2,432,316
Operating right of use asset		4,551	0
Other assets		34,235	32,570
Total assets	[1]	2,729,180	2,698,053
Current liabilities:
Accounts payable		132,899	149,945
Accrued liabilities		48,084	49,664
Current operating lease liability		2,369	0
Current portion of other long-term liabilities		14,310	14,250
Total current liabilities		197,662	213,859
Long-term debt less debt issuance costs		685,031	644,475
Operating lease liability		1,952	0
Other long-term liabilities		103,832	101,234
VIE [Member]
Current assets:
Cash and cash equivalents		3,128	5,841
Accounts receivable, net of allowance for doubtful accounts		23,331	33,207
Prepaid expenses and other		2,446	1,049
Total current assets		28,905	40,097
Property and equipment:
Gas gathering and processing equipment		781,970	767,388
Transportation equipment		3,264	3,086
Property, plant, and equipment, gross		785,234	770,474
Less accumulated depreciation, depletion, amortization, and impairment		376,006	364,740
Net property and equipment		409,228	405,734
Operating right of use asset		2,779	0
Other assets		16,048	17,551
Total assets		456,960	463,382
Current liabilities:
Accounts payable		24,246	32,214
Accrued liabilities		3,153	3,688
Current operating lease liability		1,702	0
Current portion of other long-term liabilities		6,923	6,875
Total current liabilities		36,024	42,777
Long-term debt less debt issuance costs		0	0
Operating lease liability		937	0
Other long-term liabilities		13,048	14,687
Total liabilities		$ 50,009	$ 57,464
[1]	Unit Corporation's consolidated total assets as of March 31, 2019 include total current and long-term assets of its variable interest entity (VIE) (Superior Pipeline Company, L.L.C.) of $28.9 million and $428.1 million, respectively, which can only be used to settle obligations of the VIE. Unit Corporation's consolidated total liabilities as of March 31, 2019 include total current and long-term liabilities of the VIE of $36.0 million and $14.0 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.

Variable Interest Entity Arra_4

Variable Interest Entity Arrangements (Details) - Superior Pipeline Company, L.L.C. [Member]	3 Months Ended
	Mar. 31, 2019USD ($)
Variable Interest Entity [Line Items]
Date Involvement Began	Apr. 3, 2018
Methodology for Determining Whether Entity is Primary Beneficiary	The two variable interests applicable to Unit include the 50% equity investment in Superior and the MSA. The MSA houses the power to direct the activities that most significantly impact Superior's operating performance. The MSA is a separate variable interest. Unit through the MSA has the power to direct Superior’s most significant activities; reciprocally the equity investors lack the power to direct the activities that most significantly impact the entity’s economic performance. Because of this, Unit is considered the primary beneficiary.
Lack of Recourse	Superior's creditors have no recourse to our general credit.
SP Investor Holdings, LLC [Member]
Variable Interest Entity [Line Items]
Ownership Percentage	50.00%
SPC Midstream Operating, L.L.C. [Member]
Variable Interest Entity [Line Items]
Monthly service fee	$ 255,970

Equity (Schedule of Accumulated

Equity (Schedule of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Schedule of Accumulated Other Comprehensive Income (Loss) [Abstract]
Unrealized appreciation (loss) on securities, before tax	$ 31	$ (234)
Tax benefit (expense)	(7)	58	[1]
Unrealized appreciation (loss) on securities, net of tax	$ 24	$ (176)
[1]	Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%.

Equity (Reclassification out of

Equity (Reclassification out of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018		Dec. 31, 2018	Jan. 01, 2018
New Accounting Pronouncement, Early Adoption [Line Items]
Beginning Balance	$ (481)
Accumulated other comprehensive income (loss)	(457)	$ (100)		$ (481)	$ 63
Unrealized appreciation (loss) before reclassifications	24	(176)	[1]
Amounts reclassified from accumulated other comprehensive income	0	0
Net current-period other comprehensive income (loss)	24	(176)
Ending Balance	(457)	$ (100)
ASU 2018-02 effect
New Accounting Pronouncement, Early Adoption [Line Items]
Adjustment due to ASU 2018-02				0	$ 13	[1]
ASU 2018-02 end balance
New Accounting Pronouncement, Early Adoption [Line Items]
Beginning Balance	(481)
Accumulated other comprehensive income (loss)	$ (481)			$ (481)
[1]	Due to the implementation of ASU 2018-02, the tax rate changed from 37.75% to 24.5%.

Industry Segment Information (I

Industry Segment Information (Industry Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019		Mar. 31, 2018
Revenues:
Revenues	$ 189,691		$ 205,132
Operating costs:
Operating costs	103,470		109,233
Depreciation, depletion, and amortization	62,126		57,066
Total expenses	165,596		166,299
General and administrative	9,741		10,762
(Gain) loss on disposition of assets	1,615		(161)
Income (loss) from operations	12,739		28,232
Loss on derivatives	(6,932)		(6,762)
Interest, net	(8,538)		(10,004)
Other	5		6
Income (loss) before income taxes	(2,726)		11,472
Oil and Natural Gas [Member]
Revenues:
Revenues	86,095	[1]	103,099	[2]
Operating costs:
Operating costs	34,008		37,152
Depreciation, depletion, and amortization	35,767		30,783
Total expenses	69,775		67,935
General and administrative	0		0
(Gain) loss on disposition of assets	(79)		(71)
Income (loss) from operations	16,399		35,235
Loss on derivatives	0		0
Interest, net	0		0
Other	0		0
Income (loss) before income taxes	16,399		35,235
Drilling [Member]
Revenues:
Revenues	58,199	[1]	50,710	[2]
Operating costs:
Operating costs	37,385		35,954
Depreciation, depletion, and amortization	12,699		13,312
Total expenses	50,084		49,266
General and administrative	0		0
(Gain) loss on disposition of assets	1,746		(26)
Income (loss) from operations	6,369		1,470
Loss on derivatives	0		0
Interest, net	0		0
Other	0		0
Income (loss) before income taxes	6,369		1,470
Mid-Stream [Member]
Revenues:
Revenues	70,509	[1]	74,650	[2]
Operating costs:
Operating costs	56,129		59,020
Depreciation, depletion, and amortization	11,726		11,053
Total expenses	67,855		70,073
General and administrative	0		0
(Gain) loss on disposition of assets	(42)		(34)
Income (loss) from operations	2,696		4,611
Loss on derivatives	0		0
Interest, net	(336)		(149)
Other	0		0
Income (loss) before income taxes	2,360		4,462
Other Segments [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Depreciation, depletion, and amortization	1,934		1,918
Total expenses	1,934		1,918
General and administrative	9,741		10,762
(Gain) loss on disposition of assets	(10)		(30)
Income (loss) from operations	(11,665)		(12,650)
Loss on derivatives	(6,932)		(6,762)
Interest, net	(8,202)		(9,855)
Other	5		6
Income (loss) before income taxes	(26,794)		(29,261)
Eliminations [Member]
Revenues:
Revenues	(25,112)	[1]	(23,327)	[2]
Operating costs:
Operating costs	(24,052)		(22,893)
Depreciation, depletion, and amortization	0		0
Total expenses	(24,052)		(22,893)
General and administrative	0		0
(Gain) loss on disposition of assets	0		0
Income (loss) from operations	(1,060)		(434)
Loss on derivatives	0		0
Interest, net	0		0
Other	0		0
Income (loss) before income taxes	(1,060)		(434)
Oil and natural gas
Revenues:
Revenues	86,095		103,099
Operating costs:
Operating costs	32,714		35,962
Oil and natural gas | Oil and Natural Gas [Member]
Revenues:
Revenues	86,095	[1]	103,099	[2]
Operating costs:
Operating costs	34,008		37,152
Oil and natural gas | Drilling [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Oil and natural gas | Mid-Stream [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Oil and natural gas | Other Segments [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Oil and natural gas | Eliminations [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	(1,294)		(1,190)
Contract drilling
Revenues:
Revenues	51,155		45,989
Operating costs:
Operating costs	31,401		31,667
Contract drilling | Oil and Natural Gas [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Contract drilling | Drilling [Member]
Revenues:
Revenues	58,199	[1]	50,710	[2]
Operating costs:
Operating costs	37,385		35,954
Contract drilling | Mid-Stream [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Contract drilling | Other Segments [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Contract drilling | Eliminations [Member]
Revenues:
Revenues	(7,044)	[1]	(4,721)	[2]
Operating costs:
Operating costs	(5,984)		(4,287)
Gas gathering and processing
Revenues:
Revenues	52,441		56,044
Operating costs:
Operating costs	39,355		41,604
Gas gathering and processing | Oil and Natural Gas [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Gas gathering and processing | Drilling [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Gas gathering and processing | Mid-Stream [Member]
Revenues:
Revenues	70,509	[1]	74,650	[2]
Operating costs:
Operating costs	56,129		59,020
Gas gathering and processing | Other Segments [Member]
Revenues:
Revenues	0	[1]	0	[2]
Operating costs:
Operating costs	0		0
Gas gathering and processing | Eliminations [Member]
Revenues:
Revenues	(18,068)	[1]	(18,606)	[2]
Operating costs:
Operating costs	$ (16,774)		$ (17,416)
[1]	The revenues for oil and natural gas occur at a point in time. The revenues for contract drilling and gas gathering and processing occur over time.
[2]	The revenues for oil and natural gas occur at a point in time. The revenues for contract drilling and gas gathering and processing occur over time

Supplemental Condensed Consol_3

Supplemental Condensed Consolidated Financial Information (Condensed Consolidating Balance Sheets) (Details) - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Jan. 01, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents		$ 3,891	$ 6,452	$ 752		$ 701
Accounts receivable, net of allowance for doubtful accounts		93,875	119,397
Materials and supplies		495	473
Current derivative asset		3,464	12,870
Income taxes receivable		2,054	2,054
Assets held for sale		19,728	22,511
Prepaid expenses and other		7,504	6,602
Total current assets		131,011	170,359
Oil and natural gas properties on the full cost method:
Proved properties		6,104,092	6,018,568
Unproved properties not being amortized		339,957	330,216
Drilling equipment		1,279,735	1,284,419
Gas gathering and processing equipment		781,970	767,388
Saltwater disposal systems		69,010	68,339
Corporate land and building		59,080	59,081
Transportation equipment		30,327	29,524
Other		57,624	57,507
Property, plant, and equipment, gross		8,721,795	8,615,042
Less accumulated depreciation, depletion, amortization, and impairment		6,225,220	6,182,726
Net property and equipment		2,496,575	2,432,316
Intercompany receivable		0	0
Goodwill		62,808	62,808
Investments		1,500	1,500
Operating right of use asset		4,551	0
Other assets		32,735	31,070
Total assets	[1]	2,729,180	2,698,053
Current liabilities:
Accounts payable		132,899	149,945
Accrued liabilities		48,084	49,664
Current operating lease liability		2,369	0
Current portion of other long-term liabilities		14,310	14,250
Total current liabilities		197,662	213,859
Intercompany debt		0	0
Long-term debt less debt issuance costs		685,031	644,475
Non-current derivative liability		475	293
Operating lease liability		1,952	0
Other long-term liabilities		103,832	101,234
Deferred income taxes		144,369	144,748
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		10,578	10,414
Capital in excess of par value		633,361	628,108
Contributions from Unit		0	0
Accumulated other comprehensive income (loss)		(457)	(481)	(100)	$ 63
Retained earnings		749,510	752,840
Total shareholders’ equity attributable to Unit Corporation		1,392,992	1,390,881
Non-controlling interests in consolidated subsidiaries		202,867	202,563
Total shareholders' equity		1,595,859	1,593,444	1,357,300		1,345,560
Total liabilities and shareholders' equity	[1]	2,729,180	2,698,053
Consolidating Adjustments [Member]
Current assets:
Cash and cash equivalents		0	0	0		0
Accounts receivable, net of allowance for doubtful accounts		(7,275)	(14,344)
Materials and supplies		0	0
Current derivative asset		0	0
Income taxes receivable		0	0
Assets held for sale		0	0
Prepaid expenses and other		0	0
Total current assets		(7,275)	(14,344)
Oil and natural gas properties on the full cost method:
Proved properties		0	0
Unproved properties not being amortized		0	0
Drilling equipment		0	0
Gas gathering and processing equipment		0	0
Saltwater disposal systems		0	0
Corporate land and building		0	0
Transportation equipment		0	0
Other		0	0
Property, plant, and equipment, gross		0	0
Less accumulated depreciation, depletion, amortization, and impairment		0	0
Net property and equipment		0	0
Intercompany receivable		(993,100)	(950,916)
Goodwill		0	0
Investments		(1,171,779)	(1,160,444)
Operating right of use asset		0
Other assets		0	0
Total assets		(2,172,154)	(2,125,704)
Current liabilities:
Accounts payable		(6,404)	(13,576)
Accrued liabilities		(467)	(468)
Current operating lease liability		0
Current portion of other long-term liabilities		0	0
Total current liabilities		(6,871)	(14,044)
Intercompany debt		(993,100)	(950,916)
Long-term debt less debt issuance costs		0	0
Non-current derivative liability		0	0
Operating lease liability		0
Other long-term liabilities		(403)	(300)
Deferred income taxes		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		0	0
Capital in excess of par value		(242,963)	(242,963)
Contributions from Unit		(1,078)	(792)
Accumulated other comprehensive income (loss)		0	0
Retained earnings		(927,739)	(916,689)
Total shareholders’ equity attributable to Unit Corporation		(1,171,780)	(1,160,444)
Non-controlling interests in consolidated subsidiaries		0	0
Total shareholders' equity		(1,171,780)	(1,160,444)
Total liabilities and shareholders' equity		(2,172,154)	(2,125,704)
Parent [Member]
Current assets:
Cash and cash equivalents		507	403	506		510
Accounts receivable, net of allowance for doubtful accounts		1,879	2,539
Materials and supplies		0	0
Current derivative asset		3,464	12,870
Income taxes receivable		243	243
Assets held for sale		0	0
Prepaid expenses and other		2,190	1,993
Total current assets		8,283	18,048
Oil and natural gas properties on the full cost method:
Proved properties		0	0
Unproved properties not being amortized		0	0
Drilling equipment		0	0
Gas gathering and processing equipment		0	0
Saltwater disposal systems		0	0
Corporate land and building		0	0
Transportation equipment		9,731	9,273
Other		28,669	28,584
Property, plant, and equipment, gross		38,400	37,857
Less accumulated depreciation, depletion, amortization, and impairment		29,057	27,504
Net property and equipment		9,343	10,353
Intercompany receivable		993,100	950,916
Goodwill		0	0
Investments		1,171,779	1,160,444
Operating right of use asset		10
Other assets		8,758	8,225
Total assets		2,191,273	2,147,986
Current liabilities:
Accounts payable		10,199	8,697
Accrued liabilities		29,654	28,230
Current operating lease liability		9
Current portion of other long-term liabilities		781	812
Total current liabilities		40,643	37,739
Intercompany debt		0	0
Long-term debt less debt issuance costs		685,031	644,475
Non-current derivative liability		475	293
Operating lease liability		0
Other long-term liabilities		14,356	13,134
Deferred income taxes		57,319	60,983
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		10,578	10,414
Capital in excess of par value		633,361	628,108
Contributions from Unit		0	0
Accumulated other comprehensive income (loss)		0	0
Retained earnings		749,510	752,840
Total shareholders’ equity attributable to Unit Corporation		1,393,449	1,391,362
Non-controlling interests in consolidated subsidiaries		0	0
Total shareholders' equity		1,393,449	1,391,362
Total liabilities and shareholders' equity		2,191,273	2,147,986
Combined Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents		256	208	246		191
Accounts receivable, net of allowance for doubtful accounts		75,400	94,526
Materials and supplies		495	473
Current derivative asset		0	0
Income taxes receivable		1,811	1,811
Assets held for sale		19,728	22,511
Prepaid expenses and other		2,868	3,560
Total current assets		100,558	123,089
Oil and natural gas properties on the full cost method:
Proved properties		6,104,092	6,018,568
Unproved properties not being amortized		339,957	330,216
Drilling equipment		1,279,735	1,284,419
Gas gathering and processing equipment		0	0
Saltwater disposal systems		69,010	68,339
Corporate land and building		59,080	59,081
Transportation equipment		17,332	17,165
Other		28,955	28,923
Property, plant, and equipment, gross		7,898,161	7,806,711
Less accumulated depreciation, depletion, amortization, and impairment		5,820,157	5,790,481
Net property and equipment		2,078,004	2,016,230
Intercompany receivable		0	0
Goodwill		62,808	62,808
Investments		1,500	1,500
Operating right of use asset		1,762
Other assets		7,929	5,293
Total assets		2,252,561	2,208,920
Current liabilities:
Accounts payable		104,928	122,610
Accrued liabilities		15,342	16,409
Current operating lease liability		658
Current portion of other long-term liabilities		6,606	6,563
Total current liabilities		127,534	145,582
Intercompany debt		993,182	948,707
Long-term debt less debt issuance costs		0	0
Non-current derivative liability		0	0
Operating lease liability		1,015
Other long-term liabilities		76,831	73,713
Deferred income taxes		87,050	83,765
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		0	0
Capital in excess of par value		45,921	45,921
Contributions from Unit		0	0
Accumulated other comprehensive income (loss)		(457)	(481)
Retained earnings		921,485	911,713
Total shareholders’ equity attributable to Unit Corporation		966,949	957,153
Non-controlling interests in consolidated subsidiaries		0	0
Total shareholders' equity		966,949	957,153
Total liabilities and shareholders' equity		2,252,561	2,208,920
Combined Non-Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents		3,128	5,841	$ 0		$ 0
Accounts receivable, net of allowance for doubtful accounts		23,871	36,676
Materials and supplies		0	0
Current derivative asset		0	0
Income taxes receivable		0	0
Assets held for sale		0	0
Prepaid expenses and other		2,446	1,049
Total current assets		29,445	43,566
Oil and natural gas properties on the full cost method:
Proved properties		0	0
Unproved properties not being amortized		0	0
Drilling equipment		0	0
Gas gathering and processing equipment		781,970	767,388
Saltwater disposal systems		0	0
Corporate land and building		0	0
Transportation equipment		3,264	3,086
Other		0	0
Property, plant, and equipment, gross		785,234	770,474
Less accumulated depreciation, depletion, amortization, and impairment		376,006	364,741
Net property and equipment		409,228	405,733
Intercompany receivable		0	0
Goodwill		0	0
Investments		0	0
Operating right of use asset		2,779
Other assets		16,048	17,552
Total assets		457,500	466,851
Current liabilities:
Accounts payable		24,176	32,214
Accrued liabilities		3,555	5,493
Current operating lease liability		1,702
Current portion of other long-term liabilities		6,923	6,875
Total current liabilities		36,356	44,582
Intercompany debt		(82)	2,209
Long-term debt less debt issuance costs		0	0
Non-current derivative liability		0	0
Operating lease liability		937
Other long-term liabilities		13,048	14,687
Deferred income taxes		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		0	0
Capital in excess of par value		197,042	197,042
Contributions from Unit		1,078	792
Accumulated other comprehensive income (loss)		0	0
Retained earnings		6,254	4,976
Total shareholders’ equity attributable to Unit Corporation		204,374	202,810
Non-controlling interests in consolidated subsidiaries		202,867	202,563
Total shareholders' equity		407,241	405,373
Total liabilities and shareholders' equity		$ 457,500	$ 466,851
[1]	Unit Corporation's consolidated total assets as of March 31, 2019 include total current and long-term assets of its variable interest entity (VIE) (Superior Pipeline Company, L.L.C.) of $28.9 million and $428.1 million, respectively, which can only be used to settle obligations of the VIE. Unit Corporation's consolidated total liabilities as of March 31, 2019 include total current and long-term liabilities of the VIE of $36.0 million and $14.0 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.

Supplemental Condensed Consol_4

Supplemental Condensed Consolidated Financial Information (Condensed Consolidating Balance Sheets) (Parenthetical) (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Accounts receivable, allowance for doubtful accounts	$ 2,531	$ 2,531
Common stock, shares issued	55,467,987	54,055,600
Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Accounts receivable, allowance for doubtful accounts	$ 0	$ 0
Common stock, shares issued	0	0
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Accounts receivable, allowance for doubtful accounts	$ 1,205	$ 1,205
Common stock, shares issued	55,467,987	54,055,600
Combined Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Accounts receivable, allowance for doubtful accounts	$ 1,326	$ 1,326
Common stock, shares issued	0	0
Combined Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Accounts receivable, allowance for doubtful accounts	$ 0	$ 0
Common stock, shares issued	0	0

Supplemental Condensed Consol_5

Supplemental Condensed Consolidated Financial Information (Condensed Consolidating Statements of Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Revenues	$ 189,691	$ 205,132
Expenses:
Operating costs	103,470	109,233
Depreciation, depletion, and amortization	62,126	57,066
General and administrative	9,741	10,762
(Gain) loss on disposition of assets	1,615	(161)
Total operating costs	176,952	176,900
Income (loss) from operations	12,739	28,232
Interest, net	(8,538)	(10,004)
Loss on derivatives	(6,932)	(6,762)
Other, net	5	6
Income (loss) before income taxes	(2,726)	11,472
Income tax expense (benefit)	(444)	3,607
Equity in net earnings from investment in subsidiaries, net of taxes	0	0
Net income (loss)	(2,282)	7,865
Less: net income attributable to non-controlling interest	1,222	0
Net income (loss) attributable to Unit Corporation	(3,504)	7,865
Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	(25,112)	(23,327)
Expenses:
Operating costs	(24,052)	(22,893)
Depreciation, depletion, and amortization	0	0
General and administrative	0	0
(Gain) loss on disposition of assets	0	0
Total operating costs	(24,052)	(22,893)
Income (loss) from operations	(1,060)	(434)
Interest, net	0	0
Loss on derivatives	0	0
Other, net	0	0
Income (loss) before income taxes	(1,060)	(434)
Income tax expense (benefit)	0	0
Equity in net earnings from investment in subsidiaries, net of taxes	(9,850)	(21,725)
Net income (loss)	(10,910)	(22,159)
Less: net income attributable to non-controlling interest	0
Net income (loss) attributable to Unit Corporation	(10,910)
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	0	0
Expenses:
Operating costs	0	0
Depreciation, depletion, and amortization	1,934	1,918
General and administrative	0	0
(Gain) loss on disposition of assets	(10)	(30)
Total operating costs	1,924	1,888
Income (loss) from operations	(1,924)	(1,888)
Interest, net	(8,202)	(9,855)
Loss on derivatives	(6,932)	(6,762)
Other, net	5	6
Income (loss) before income taxes	(17,053)	(18,499)
Income tax expense (benefit)	(3,699)	(4,639)
Equity in net earnings from investment in subsidiaries, net of taxes	9,850	21,725
Net income (loss)	(3,504)	7,865
Less: net income attributable to non-controlling interest	0
Net income (loss) attributable to Unit Corporation	(3,504)
Combined Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	144,294	153,809
Expenses:
Operating costs	71,393	73,106
Depreciation, depletion, and amortization	48,466	44,095
General and administrative	9,741	8,229
(Gain) loss on disposition of assets	1,667	(97)
Total operating costs	131,267	125,333
Income (loss) from operations	13,027	28,476
Interest, net	0	0
Loss on derivatives	0	0
Other, net	0	1
Income (loss) before income taxes	13,027	28,477
Income tax expense (benefit)	3,255	7,648
Equity in net earnings from investment in subsidiaries, net of taxes	0	0
Net income (loss)	9,772	20,829
Less: net income attributable to non-controlling interest	0
Net income (loss) attributable to Unit Corporation	9,772
Combined Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues	70,509	74,650
Expenses:
Operating costs	56,129	59,020
Depreciation, depletion, and amortization	11,726	11,053
General and administrative	0	2,533
(Gain) loss on disposition of assets	(42)	(34)
Total operating costs	67,813	72,572
Income (loss) from operations	2,696	2,078
Interest, net	(336)	(149)
Loss on derivatives	0	0
Other, net	0	(1)
Income (loss) before income taxes	2,360	1,928
Income tax expense (benefit)	0	598
Equity in net earnings from investment in subsidiaries, net of taxes	0	0
Net income (loss)	2,360	$ 1,330
Less: net income attributable to non-controlling interest	1,222
Net income (loss) attributable to Unit Corporation	$ 1,138

Supplemental Condensed Consol_6

Supplemental Condensed Consolidated Financial Information (Condensed Consolidating Statements of Comprehensive Income) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	$ (2,282)	$ 7,865
Unrealized gain (loss) on securities, net of tax of $7 and ($58)	24	(176)
Comprehensive income (loss)	(2,258)	7,689
Less: Comprehensive income attributable to non-controlling interest	1,222	0
Comprehensive income (loss) attributable to Unit Corporation	(3,480)	7,689
Unrealized income (loss) on securities, tax	7	(58)
Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	(10,910)	(22,159)
Unrealized gain (loss) on securities, net of tax of $7 and ($58)	0	0
Comprehensive income (loss)	(10,910)	(22,159)
Less: Comprehensive income attributable to non-controlling interest	0	0
Comprehensive income (loss) attributable to Unit Corporation	(10,910)	(22,159)
Unrealized income (loss) on securities, tax	0	0
Parent [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	(3,504)	7,865
Unrealized gain (loss) on securities, net of tax of $7 and ($58)	0	0
Comprehensive income (loss)	(3,504)	7,865
Less: Comprehensive income attributable to non-controlling interest	0	0
Comprehensive income (loss) attributable to Unit Corporation	(3,504)	7,865
Unrealized income (loss) on securities, tax	0	0
Combined Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	9,772	20,829
Unrealized gain (loss) on securities, net of tax of $7 and ($58)	24	(176)
Comprehensive income (loss)	9,796	20,653
Less: Comprehensive income attributable to non-controlling interest	0	0
Comprehensive income (loss) attributable to Unit Corporation	9,796	20,653
Unrealized income (loss) on securities, tax	7	(58)
Combined Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net income (loss)	2,360	1,330
Unrealized gain (loss) on securities, net of tax of $7 and ($58)	0	0
Comprehensive income (loss)	2,360	1,330
Less: Comprehensive income attributable to non-controlling interest	1,222	0
Comprehensive income (loss) attributable to Unit Corporation	1,138	1,330
Unrealized income (loss) on securities, tax	$ 0	$ 0

Supplemental Condensed Consol_7

Supplemental Condensed Consolidated Financial Information (Condensed Consolidating Statements of Cash Flows (Unaudited)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	$ 77,078	$ 83,568
INVESTING ACTIVITIES:
Capital expenditures	(122,507)	(90,249)
Producing properties and other acquisitions	(1,580)	0
Proceeds from disposition of assets	3,190	22,084
Net cash provided by (used in) investing activities	(120,897)	(68,165)
FINANCING ACTIVITIES:
Borrowings under credit agreement	109,800	67,400
Payments under credit agreement	(69,800)	(97,700)
Intercompany borrowings (advances), net	0	0
Payments on finance leases	(985)	(946)
Distributions to non-controlling interest	(918)	0
Book overdrafts	3,161	15,894
Net cash provided by (used in) financing activities	41,258	(15,352)
Net increase (decrease) in cash and cash equivalents	(2,561)	51
Cash and cash equivalents, beginning of period	6,452	701
Cash and cash equivalents, end of period	3,891	752
Consolidating Adjustments [Member]
OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	(34)	0
INVESTING ACTIVITIES:
Capital expenditures	0	0
Producing properties and other acquisitions	0	0
Proceeds from disposition of assets	0	0
Net cash provided by (used in) investing activities	0	0
FINANCING ACTIVITIES:
Borrowings under credit agreement	0	0
Payments under credit agreement	0	0
Intercompany borrowings (advances), net	34	0
Payments on finance leases	0	0
Distributions to non-controlling interest	0
Book overdrafts	0	0
Net cash provided by (used in) financing activities	34	0
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents, beginning of period	0	0
Cash and cash equivalents, end of period	0	0
Parent [Member]
OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	(562)	(5,452)
INVESTING ACTIVITIES:
Capital expenditures	(321)	(56)
Producing properties and other acquisitions	0	0
Proceeds from disposition of assets	10	30
Net cash provided by (used in) investing activities	(311)	(26)
FINANCING ACTIVITIES:
Borrowings under credit agreement	106,900	67,400
Payments under credit agreement	(66,900)	(97,700)
Intercompany borrowings (advances), net	(43,103)	19,880
Payments on finance leases	0	0
Distributions to non-controlling interest	919
Book overdrafts	3,161	15,894
Net cash provided by (used in) financing activities	977	5,474
Net increase (decrease) in cash and cash equivalents	104	(4)
Cash and cash equivalents, beginning of period	403	510
Cash and cash equivalents, end of period	507	506
Combined Guarantor Subsidiaries [Member]
OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	64,168	74,277
INVESTING ACTIVITIES:
Capital expenditures	(110,089)	(79,855)
Producing properties and other acquisitions	(1,580)	0
Proceeds from disposition of assets	3,142	22,028
Net cash provided by (used in) investing activities	(108,527)	(57,827)
FINANCING ACTIVITIES:
Borrowings under credit agreement	0	0
Payments under credit agreement	0	0
Intercompany borrowings (advances), net	44,407	(16,395)
Payments on finance leases	0	0
Distributions to non-controlling interest	0
Book overdrafts	0	0
Net cash provided by (used in) financing activities	44,407	(16,395)
Net increase (decrease) in cash and cash equivalents	48	55
Cash and cash equivalents, beginning of period	208	191
Cash and cash equivalents, end of period	256	246
Combined Non-Guarantor Subsidiaries [Member]
OPERATING ACTIVITIES:
Net cash provided by (used in) operating activities	13,506	14,743
INVESTING ACTIVITIES:
Capital expenditures	(12,097)	(10,338)
Producing properties and other acquisitions	0	0
Proceeds from disposition of assets	38	26
Net cash provided by (used in) investing activities	(12,059)	(10,312)
FINANCING ACTIVITIES:
Borrowings under credit agreement	2,900	0
Payments under credit agreement	(2,900)	0
Intercompany borrowings (advances), net	(1,338)	(3,485)
Payments on finance leases	(985)	(946)
Distributions to non-controlling interest	(1,837)
Book overdrafts	0	0
Net cash provided by (used in) financing activities	(4,160)	(4,431)
Net increase (decrease) in cash and cash equivalents	(2,713)	0
Cash and cash equivalents, beginning of period	5,841	0
Cash and cash equivalents, end of period	$ 3,128	$ 0