Prospex Energy PLC operates as an oil and gas investment company in Europe. The company holds interest in the Tesorillo Project that comprises two petroleum exploration licenses, the Tesorillo and Ruedalabola permits, which cover an area of approximately 38,000 hectares located in Cadiz Province in southern Spain; and a 17% working interest in the Podere Gallina exploration permit in Po Valley Basin, Italy. It also holds 49.9% interest in El Romeral gas and power operation, including three producing wells comprising El Ciervo-1, Santa Clara-1, and Sevilla-3. The company was formerly known as Prospex Oil and Gas Plc and changed its name to Prospex Energy PLC in July 2020. Prospex Energy PLC was incorporated in 1999 and is based in London, the United Kingdom.