CARLSBAD, N.M. (AP) — Drilling of the longest horizontal oil and gas well in the history of the Permian Basin has been completed as booming oil production in the region continues to center around shale in southeast New Mexico and West Texas.

The Fort Worth, Texas-based Basic Energy Services recently announced the well was completed in the Wolfcamp, The Carlsbad Current-Argus reports . Wolfcamp is shale of the Delaware Basin, which sits below most of New Mexico's Eddy County and the southern half of the state's Lea County.

Records show the well also encompasses portions of Culberson, Reeves and...