Nigel D. R. Hartley

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 is involved 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.

Roc Oil Co. Pty Ltd. is an upstream oil and gas company, which engages in exploration of oil and natural gas. It operates across the range of upstream business activities from exploration and appraisal to development and production delivery. The company was founded by Robert John Patrick Doran in 1997 and is headquartered in Sydney, Australia.

Part of High Peak Royalties Ltd., Phoenix Oil & Gas Ltd. buys, develops and explores oil and gas assets. The company is based in Sydney, Australia. The Australian company was founded by Andrew Robert Carroll. Steven Larkins has been the CEO of the company since 2012. Phoenix Oil & Gas was acquired by High Peak Royalties Ltd. on June 12, 2014 for $19.98 million.

Part of Oil Search Ltd., Papuan Oil Search Ltd. is an Australian company that provides oil and gas field exploration services. The company is based in Sydney, Australia.