news                                                           UNIT CORPORATION
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                                 7130 South Lewis Avenue, Tulsa, Oklahoma 74136
                                       Telephone 918 493-7700, Fax 918 493-7714



                               Contact: Larry D. Pinkston
                                        President and Chief Operating Officer
                                        (918) 493-7700


For Immediate Release...
February 8, 2005


                UNIT CORPORATION'S OIL & NATURAL GAS SUBSIDIARY'S
                        RESERVES REACH RECORD 346.8 BCFE
                   COMPANY ANNOUNCES OTHER OPERATIONS RESULTS

     Tulsa, Oklahoma...Unit Corporation (NYSE - UNT) today announced that its
wholly owned subsidiary, Unit Petroleum Company, replaced 285% of its 2004 oil
and natural gas production and increased its proved oil and natural gas reserves
22%. At December 31, 2004, Unit's net proved oil and natural gas reserves, as
reviewed by Ryder Scott, are 8.6 million barrels of oil and 295.4 Bcf of natural
gas. The increase in reserves resulted from the acquisition of PetroCorp
Incorporated and our participation in the drilling of 168 gross wells in 2004.
2004 marks the 21st consecutive year that Unit has met its goal of replacing
more than 150% of its annual production with new oil and natural gas reserves.
The net present value, discounted at 10%, of these reserves as of December 31,
2004 is approximately $787.1 million dollars. Future net revenue from these
properties, before income taxes, is estimated at $1.38 billion. This value is
based on unescalated prices of $43.45 per barrel of oil and $5.65 per Mcf of
natural gas for the life of the properties per SEC regulations.
     During 2004, Unit produced 1,048,000 barrels of oil and 27.1 Bcf of natural
gas, or an equivalent Bcf of 33.4. This is an increase of 41% from the
equivalent production for 2003 when Unit produced 516,000 barrels of oil and
20.7 Bcf of natural gas for an equivalent Bcf of 23.7.
     Of particular note is Unit's Buzzard Gap Prospect, located in Latimer
County, Oklahoma. Unit has been active in this 15 section area since 1981, where
it owns approximately an average 42% working interest in the prospect. Unit owns
interests in 47 Buzzard Gap wells which produce from several Atokan age
sandstones and have produced approximately 83.0 Bcf of natural gas. Two
additional significant wells have been recently drilled and are currently
producing. The Scharff #3X (13.6% working interest) has been producing for 121



days and is currently producing 14,000 Mcf per day, while the Lively #4 (29.6%
working interest) has been producing for 53 days and is currently producing
22,500 Mcf per day. Currently, at least two potential offset wells exist for the
Scharff #3X and the Lively #4.
     Unit Petroleum has budgeted $125 million for capital expenditures for 2005
with $105 million planned for exploration and development drilling. This budget
for Unit Petroleum represents about a 25% increase over 2004 capital
expenditures, excluding acquisitions. Unit Petroleum plans to drill 220 to 230
wells during 2005.
     Unit Drilling Company, a wholly owned subsidiary of Unit Corporation,
announced its fourth quarter average rig utilization was 95.0 rigs and its
average rig utilization for 2004 was 88.1 rigs, an increase of 36% and 40%,
respectively, over the same periods in 2003. Unit had 100 total rigs available
for drilling during the fourth quarter of 2004. Unit's 101st rig, which had
previously been under construction, is now operating under contract. Early in
January 2005, Unit closed its acquisition of a subsidiary of Strata Drilling
LLC, by which Unit acquired two additional drilling rigs, its 102nd and 103rd
rigs, as well as spare parts, inventory, drill pipe, and other major rig
components. One of the newly acquired rigs is currently operating under contract
while the other rig should be fully operational within 90 days. Currently, Unit
has 102 rigs, all of which are contracted and 101 are operating. Apart from the
newly acquired rigs, Unit has two additional rigs under construction which are
committed to a customer and are expected to be operational by the third quarter.

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     Unit Corporation is a Tulsa-based, publicly held energy company engaged
through its subsidiaries in oil and gas exploration, production, contract
drilling and natural gas gathering and processing. Unit's Common Stock is listed
on the New York Stock Exchange under the symbol UNT. For more information about
Unit Corporation, visit our website at http://www.unitcorp.com.
     This news release contains forward-looking statements within the meaning of
the Securities Litigation Reform Act that involve risks and uncertainties,
including the amount of the company's oil and natural gas reserves, the value of
the company's oil and natural gas reserves, the number of future wells the
company plans to drill, productive capabilities of the wells, future demand for
oil and natural gas, oil and natural gas reserve information, anticipated
production rates from company wells, the prospective capabilities of offset
acreage, anticipated oil and natural gas prices, anticipated operational dates
for newly constructed rigs and other development, operational, implementation
and opportunity risks, and other factors described from time to time in the
company's publicly available SEC reports, which could cause actual results to
differ materially from those expected.