Aminex PLC is engaged in the exploration for, and the development and production of oil and gas reserves. Its principal area of activities includes the United States, East Africa, North Africa and North Korea. Its segments include Producing Oil and Gas Properties, Exploration Activities and Oilfield Services and Supplies. The Company's licenses in Tanzania include Nyuni PSA, Kiliwani North and Ruvuma PSA. During the year ended December 31, 2010, it drilled three wells, one in Tanzania and two in the United States. As of December 31, 2010, the Company held leases at Shoats Creek covering approximately 2,100 acres. Aminex Oilfield Services & Supply Company (AMOSSCO), its wholly owned subsidiary, provides logistics services to oil industry and sources oilfield equipment and consumables to international oil companies. In October 2013, Aminex Plc announced the sale of its producing gas wells at the South Weslaco Field, Hidalgo County, Texas to Northcote Energy PLC.