Tethys Petroleum Limited engages in the acquisition, exploration, and development of crude oil and natural gas fields in Kazakhstan. It holds 100% working interest in the Kyzyloi production contract covering 449 sq. km; Akkulka exploration licence and contract covering 827 sq. km; Akkulka production contract covering 396 sq. km; and Kul-Bas exploration and production contract covering 7,632 sq. km located in Kazakhstan. The company was formerly known as Tethys Petroleum Investments Limited and changed its name to Tethys Petroleum Limited in September 2006. Tethys Petroleum Limited was incorporated in 2003 and is based in George Town, the Cayman Islands.