Unit Drilling Company is an energy company engaged in the exploration for and production of oil and natural gas, the acquisition of producing oil and natural gas properties, the contract drilling of onshore and natural gas wells and the gathering and processing of natural gas. Operations are principally located in the Mid-Continent region in areas that include the Anadarko and Arkoma basins, Permian, Rocky Mountains and Gulf Coast basin. With the largest percentage of deep rated, premium rigs in the industry; Unit Drilling Company is positioned to benefit from the expanding domestic natural gas market. Unit Drilling Company's principal corporate offices are located in Tulsa, Okla., with regional offices in Okalahoma City, and Woodward, Okla.; Booker, Borger and Houston, Texas; and Casper, Wyo.