|Unit Corporation (Unit) is a contract drilling company. The operations of the Company are conducted through its wholly owned subsidiaries: Unit Drilling Company, Unit Petroleum Company and Superior Pipeline Company, L.L.C. Unit Drilling Company is engaged in drilling onshore oil and natural gas wells for its own account. Unit Petroleum Company is engaged in exploring, developing, acquiring and producing oil and natural gas properties for its own account. Superior Pipeline Company, L.L.C. is engaged in buying, selling, gathering, processing and treating natural gas for its account and for third parties. During the year ended December 31, 2008, the Company constructed and placed into service three 1,500 horsepower diesel electric drilling rigs, bringing the rig fleet to a total of 132 rigs. In 2008, the Company drilled a total footage of 11.7 million feet.