Oil Search Ltd. engages in the business of oil and gas exploration. It operates through the following segments: PNG Business Unit, Alaska Business Unit and Centre. The PNG Business Unit segment engages in the development, production and sale of liquefied natural gas, crude oil, condensate, naphtha and other refined products. The Alaska Business Unit segment involves in the exploration, evaluation and development of hydrocarbons in the United States of America. The Centre segment consists of corporate activities needed to shape, safeguard and service the business units and the group. The company was founded on January 17, 1929 and is headquartered in Sydney, Australia.