UNIT CORPORATION TO PRESENT AT THE LEHMAN BROTHERS CEO ENERGY/POWER CONFERENCE

Tulsa, Oklahoma . . . Unit Corporation (NYSE – UNT) announced today that it will participate at the Lehman Brothers CEO Energy/Power Conference, which will be held September 5th – 7th, 2006 in New York, New York. Unit’s presentation will be broadcast live over the Internet on Tuesday, September 5th at 4:25 p.m. Eastern Time. Listeners may access the webcast via the Company’s website at http://www.unitcorp.com.