March 4, 2005

Tulsa, Oklahoma . . . Unit Corporation (NYSE – UNT) announced today that it will participate in the Raymond James 26th Annual Institutional Investors conference, which will be held March 6th through the 9th in Orlando, Florida. Unit’s presentation will be broadcast live on the Internet on Tuesday, March 8th at 4:35 p.m. Eastern Time. Listeners may access webcast via the Company’s website at 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 our website at http://www.unitcorp.com.