X0303 4 2010-12-13 0000798949 UNIT CORP UNT 0001012079 PINKSTON LARRY D 7130 SOUTH LEWIS, SUITE 1000 TULSA OK 74136 1 1 President and CEO Common Stock 2010-12-13 4 M 0 7500.0000 16.6875 A 89477.0000 D Common Stock 2010-12-13 5 G 0 500.0000 0.0000 D 86220.0000 D Common Stock 2010-12-13 4 F 0 2757.0000 45.3900 D 86720.0000 D Common Stock 6158.0000 I By 401(k) Employee Stock Option (Right to Buy) 16.6875 2010-12-13 4 M 0 7500.0000 0.0000 D 2010-12-19 Common Stock 7500.0000 0.0000 D Reflects exercise of fully-vested stock option under company's employee stock option plan. This option would have expired December 19, 2010. Bona fide gift, voluntarily reported. Code F is used to report shares withheld by the company as payment for the exercise price or tax liability associated with an option exercise in accordance with SEC Rule 16b-3. This information is based on a plan statement dated December 15, 2010. This stock option became exercisable in five equal annual installments beginning on December 19, 2001. By April Adler under POA 2010-12-15