Prospex Energy PLC is an oil and gas investment company operating in Europe. Its main project is the Tesorillo Project, which includes petroleum exploration licenses covering 38,000 hectares in southern Spain. Prospex also has a 17% economic interest in the Podere Gallina exploration permit in the Po Valley Basin, Italy. Additionally, the company has a 49.9% stake in the El Romeral gas and power operation in Spain, which includes three producing wells and an 8.1 MW power station.