Serinus Energy plc, together with its subsidiaries, engages in the exploration and development of oil and gas properties in Tunisia and Romania. It owns a 100% deemed working interest in the Satu Mare concession covering an area of approximately 729,000 acres situated within the Pannonian Basin, Romania. The company also holds 45% working interest in the Sabria concession, which covers an area of approximately 26,196 gross acres; 100% working interest in the Chouech Es Saida concession covering an area of approximately 42,526 gross acres; 100% working interest in the Ech Chouech concession that covers an area of approximately 35,139 gross acres; 100% working interest in the Zinnia concession covering an area of approximately 17,471 gross acres; and 100% working interest in the Sanrhar concession, which covers an area of approximately 36,879 gross acres located in Tunisia. It has 10.58 million barrels of oil equivalent proved and probable reserves. Serinus Energy plc was incorporated in 1987 and is headquartered in Saint Helier, Jersey.