Unit Corporation (NYSE:UNT) announced today that it will webcast its
First Quarter 2010 earnings release conference call. You are invited to
listen to its conference call that will be broadcast live over the
Internet on Tuesday, May 4th at 11:00 a.m. Eastern Time (10:00 a.m.
Central Time). Listeners may access the webcast of the conference call
via 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 natural 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