Unit Corporation (NYSE: UNT) announced today that it will participate at
the CLSA/CAS Energy Forum 2010, which will be held May 13th
14th in New York, New York. Unit will present during a
workshop on Friday, May 14, 2010 at 10:45 a.m. Eastern Time (9:45 a.m.
Central Time). This event will not be webcast; however, Unit’s
presentation will be available on the Company’s website at www.unitcorp.com.

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 its website at http://www.unitcorp.com.

Unit Corporation
David T. Merrill, 918-493-7700
Financial Officer & Treasurer