Oil Search Limited explores for, develops, and produces oil and gas properties in Papua New Guinea, the United States, and Australia. The company operates through PNG Business Unit and Alaska Business Unit segments. It is involved in the development, production, and sale of hydrocarbons, liquefied natural gas, crude oil, natural gas, condensate, naphtha, and other refined products; and power generation activities. As of December 31, 2019, the company's proved and probable reserves, and contingent resources comprised 497.0 million barrels of oil and condensate; and 6,737.0 billion cubic feet of gas. Oil Search Limited was founded in 1929 and is based in Port Moresby, Papua New Guinea.