<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
The schedule contains summary financial information extracted from the
Consolidated Condensed Financial Statements of Unit Corporation and Subsidiaries
under the cover of Form 10-Q for the six months ended June 30, 2000 and is
qualified in its entirety by reference to such financial statements. The
Cosolidated Condensed Financial Statements of Unit Corporation and Subsidiaries
have been restated for the six months ended June 30, 1999 to reflect the merger
with Questa Oil and Gas Co. which was accounted for as a pooling of interests.
</LEGEND>
<CIK> 0000798949
<NAME> UNIT CORPORATION
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 6-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-1999 DEC-31-2000
<PERIOD-END> JUN-30-1999 JUN-30-2000
<CASH> 1,449 688
<SECURITIES> 0 0
<RECEIVABLES> 13,102<F1> 28,872<F1>
<ALLOWANCES> 0 0
<INVENTORY> 0<F2> 0<F2>
<CURRENT-ASSETS> 19,764 34,619
<PP&E> 433,999 520,149
<DEPRECIATION> 229,000 254,932
<TOTAL-ASSETS> 231,068 307,442
<CURRENT-LIABILITIES> 19,080 27,653
<BONDS> 0 0
0 0
0 0
<COMMON> 5,513 7,146
<OTHER-SE> 111,036 182,139
<TOTAL-LIABILITY-AND-EQUITY> 231,068 307,442
<SALES> 0 0
<TOTAL-REVENUES> 41,121 80,814
<CGS> 0 0
<TOTAL-COSTS> 38,603 60,465
<OTHER-EXPENSES> 2,800 3,024
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 2,525 2,601
<INCOME-PRETAX> (2,807) 14,724
<INCOME-TAX> (1,032) 5,519
<INCOME-CONTINUING> (1,775) 9,205
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (1,775) 9,205
<EPS-BASIC> (.06) .26
<EPS-DILUTED> (.06) .26
<FN>
<F1>Accounts Receivable is presented net in the Consolidated Condensed Balance
Sheet.
<F2>Inventory is presented as a portion of Other Current Assets in the
Consolidated Condensed Balance Sheet.
</FN>
</TABLE>