Prospex Energy Plc, formerly Prospex Oil and Gas Plc, is a United Kingdom-based oil and gas investment company. It is engaged in building oil and gas investment portfolio, focusing on onshore and shallow, and offshore European opportunities. It invests in and/or acquires companies and/or projects within the natural resources and/or energy sector with potential for growth and/or income. Its projects include Tesorillo Project, Suceava and Po Valley. It has interests in Tesorillo Project, which is located in Cadiz Province in southern Spain. Tesorillo project consists of two petroleum exploration licences, the Tesorillo and Ruedalabola Permits, which covers 38,000 hectare (ha) in total. It also holds interest in the exploration area of the EIV-1 Suceava Concession in Romania. Suceava contains two producing gas fields, Climauti and Dornesti South. It has interest in the Podere Gallina Exploration Permit, which is located onshore northern Italy in the Po Valley.