Eric Fraser Ainsworth

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.

Envestra Ltd. owns and operates gas distribution networks and transmission pipelines in various states and the Northern Territory within Australia. The company is engaged in the provision of natural gas haulage services to retailers through the transmission pipelines and distribution networks it owns and manages; and development of the business through expansion of the existing networks, acquisition of networks and construction of new networks. It owns networks in Victoria, South Australia, Queensland and Southern New South Wales. Envestra was founded on May 16, 1997 and is headquartered in Adelaide, Australia.

Part of Beach Energy Ltd., Delhi Petroleum Pty Ltd. is an Australian company that produces petroleum oil. The private company is based in Melbourne, Australia. Delhi Petroleum was acquired by Beach Energy Ltd. on September 05, 2006 for $442.47 million.