Santos Ltd. engages in the exploration, development, transportation, and marketing of natural gas. It operates through the following segments: Cooper Basin, Queensland, Papua New Guinea (PNG), Northern Australia, Western Australia (WA) Gas, and Other. The Cooper Basin segment produces natural gas, gas liquids, and crude oil. The Queensland segment has interest in GLNG project and various interests in other non-operated fields. The PNG segment focuses on PNG LNG Project which produces LNG for export to global markets, as well as gas and gas liquids. The Northern Australia segment holds interest in the Bayu-Undan/Darwin LNG Project. The WA Gas segment offers natural gas and gas liquids. The Other segment consists of Indonesia, Vietnam, and Western Australia. The company was founded on March 18, 1954 and is headquartered in Adelaide, Australia.