Robbert Cornelis Wilhelmus de Weijer

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.

Arrow Energy Pty Ltd. explores, develops, and produces coal seam gas (CSG). The firm produces CSG from fields in the Surat Basin and Bowen Basin. It also supplies power stations such as the Townsville, Daandine, Braemar, Braemar 2, and Moranbah. The company was founded in 1997 and is headquartered in Brisbane, Australia.

OSD Pty Ltd. provides engineering services. It offers WIMMERA Mallee Pipeline, MCARTHUR River Pipeline, TASMANUAN Gas Pipeline O&M, FIRST Gas Operator venture, FAIRYMEADOW Road Irrigation, BP Refinery Capital Works, NITRIC Acid Upgrade, BRWOSE Lng and WEST Kimberley Power projects. The firm offers its services to oil & gas, mining & minerals, renewables, chemical processing, bulk liquid storage, water, papua new guinea and operations & maintenance industries. The company was founded by Brian O'Sullivan in 1992 and is headquartered in Milton, Australia.

Graphene Manufacturing Australia Pty Ltd. is a global technology business empowering innovation across industries through the bulk supply of graphene. The company was founded by Craig Nicoland and is headquartered in Brisbane, Australia.