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...
October 21, 2004


                  UNIT CORPORATION ANNOUNCES THE RETIREMENT OF
                 MR. JOHN NIKKEL AS ITS CHIEF EXECUTIVE OFFICER


     Tulsa,  Oklahoma . . . Unit  Corporation  (NYSE - UNT) announced today that
its  Chairman and Chief  Executive  Officer,  John Nikkel,  will retire as Chief
Executive  Officer of the  Company  effective  April 1, 2005 and that Mr.  Larry
Pinkston,  its President,  has been elected to assume the additional role as the
Company's Chief Executive  Officer effective with Mr. Nikkel's  retirement.  Mr.
Nikkel will continue to serve the Company as Chairman of the Board of Directors.
Mr.  Nikkel has also agreed to serve as a consultant  for the Company  following
his retirement.
     Mr. Nikkel  joined Unit in 1983 as its President and director.  In 2001, he
became the Company's Chief Executive Officer, and in August 2003, Mr. Nikkel was
named  Chairman of the Board of Directors.  When Mr. Nikkel joined Unit in 1983,
the Company  consisted  of only 29 drilling  rigs  operating in Oklahoma and had
total oil and natural gas reserves of approximately 11 Bcfe.  Today, Unit owns a
drilling rig fleet consisting of 100 rigs operating in Oklahoma, Texas, Wyoming,
Colorado  and Utah.  Unit's oil and natural gas reserve base is in excess of 340
Bcfe, with its properties  located  primarily in Oklahoma,  South Texas, and the
Permian Basin of West Texas.
     Mr.  Nikkel said,  "It has been my distinct  pleasure to serve Unit for the
past 21 years and because of the hard work and dedication of our employees, Unit
has had excellent  growth through that period.  Unit has outstanding  management
talent that will continue our long-held  strategy of growing our asset base with
a conservative financial policy."
     Mr.  Pinkston,  who has  served  the  Company  as its  President  and Chief
Operating Officer since February 2004, said,  "Through John's  leadership,  Unit
has  experienced  dramatic  growth  over  the  life of the  Company.  We plan to





continue  growing  the Company and intend to keep Unit on the path that John has
helped build for us."
     Unit  Corporation  will be  announcing  its third  quarter 2004 earnings on
Wednesday, October 27, 2004. Its conference call will be broadcast live over the
Internet at 11:00 a.m. Eastern Time on October 27th. The webcast may be accessed
at the Company's website, www.unitcorp.com.

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     Unit  Corporation  is a Tulsa-based,  publicly held energy company  engaged
through its  subsidiaries  in oil and gas  exploration,  production and contract
drilling. Unit's Common Stock is listed on the New York Stock Exchange under the
symbol UNT. For more information  about Unit  Corporation,  visit its 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 productive  capabilities  of the wells,  future demand for oil and
natural  gas,  future  rig  utilization  and  dayrates,   oil  and  gas  reserve
information,  anticipated  production  rates from company wells, the prospective
capabilities  of  offset  acreage,  anticipated  oil  and  natural  gas  prices,
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.