The Permian Basin is a sedimentary basin located mostly in West Texas and the South East part of New Mexico. The basin extend from just south of Lubbock, Texas to just south of Midland and Odessa and westward into southeast New Mexico. It underlies an area approximately 250 miles wide and 300 miles long and includes the Texas counties of Andrews, Borden, Crane, Dawson, Ector, Gaines, Glasscock, Howard, Loving, Martin, Midland, Pecos, Reeves, Terrell, Upton, Ward, and Winkler.
The name Permian Basin comes from the fact that it is one of the thickest areas of Permian rocks in the World. Approximately 11.3 billion barrels of oil have been produced since the discovery of the basin, with Midland and Odessa being the headquarters of the oil producing region.