X0303 4 2011-04-01 0000798949 UNIT CORP UNT 0001012081 SCHELL MARK E 7130 SOUTH LEWIS, SUITE 1000 TULSA OK 74136 1 SR. V-P, General Counsel Common Stock 2011-04-01 4 F 0 825.0000 63.4300 D 47648.0000 D Common Stock 35974.0000 I By 401(k) Code F is being used to report shares withheld by the company as payment for tax liability incident to the vesting of the second of four equal annual installments of common stock under an award granted March 9, 2010. This information is based on a plan statement dated as of April 4, 2011. By April Adler under POA 2011-04-05