Amerisur Resources PLC is an independent full-cycle oil and gas company. It mainly invests in oil and gas exploration and development firms across Paraguay and Colombia. It operates through its Oil Exploration and Development and Production segment. It has operations in Colombia and has an interest in the Platanillo block, which includes the Platanillo field, and interests in block Put-12. The company also has an interest in Put-30. In addition, the enterprise has an interest in the CPO-5 contract and a working interest in the Tacacho contract. It generates revenues from the sale of oil, natural gas, natural gas liquids, and liquefied natural gas.