Oil Search Ltd. engages in the business of oil and gas exploration. It operates through the following segments: PNG Oil and Gas; PNG LNG Project; Middle East and North Africa Oil and Gas; and Other. The PNG Oil and Gas segment involves the exploration, evaluation, development, production including sale of crude oil, natural gas, condensate and other refined products from the group's interest in its operated assets for PNG crude oil and Hides gas-to-development, production and sale of liquefied natural gas, condensate, naphtha and electricity from the group's interest in the PNG LNG Project. The Middle East and Norht Africa Oil and Gas segment includes the exploration and evaluation of crude oil and gas through the group's license interests in the Republic of Yemen, Republic of Iraq, and Tunisian Republic. The Other segment consists of group's ownership of drilling rigs and corporate activities. The company was founded in 1929 and is headquartered in Sydney, Australia.