BHP Billiton is a global resources company. Co. operates under a Dual Listed Company (DLC) structure, which consists of the BHP Billiton Limited Group and the BHP Billiton Plc Group, operating as a single economic entity. As of June 30 2017, Co. operated four reportable segments: Petroleum, which is involved in the exploration, development and production of oil and gas; Copper, which is involved in the mining of copper, silver, lead, zinc, molybdenum, uranium and gold; Iron ore, which is involved in the mining of iron ore; and Coal, which is involved in the mining of metallurgical coal and thermal (energy) coal.

Fortescue Metals Group is an iron ore producer. As of June 30 2016, Co.'s operations had four mine sites in the Pilbara. The Chichester Hub, which includes the Cloudbreak and Christmas Creek mines, is located in the Chichester Ranges and the Solomon Hub, in the Hamersley Ranges, includes the Firetail and Kings Valley mines. Co. owns and operates an integrated supply chain including its Herb Elliott Port in Port Hedland and a heavy haul railway with over 620km of track. As of June 30 2016, Co.'s total hematite ore proved and probable reserves were 2.17 billion tonnes. Also, as of June 30 2016, Co.'s total magnetite ore proved and probable reserves were 705.0 million tonnes.

Scentre Group is engaged in the ownership, development, design, construction, asset management, leasing and marketing activities with respect to its Australian and New Zealand portfolio of retail properties. Co.'s operational segment comprises the property investments and property and project management segments. The property investments segment includes existing shopping centers and completed developments. The property and project management segment includes property management and development. As of Dec 31 2015, Co. had a portfolio of 34 centers in Australia and six centers in New Zealand.

Woodside Petroleum is engaged in hydrocarbon exploration, evaluation, development, production and marketing. Co.'s operating segments include: North West Shelf Project, which is engaged in the exploration, evaluation, development, production and sale of liquefied natural gas, pipeline natural gas, condensate, liquefied petroleum gas and crude oil from the North West Shelf ventures; Pluto LNG, which is engaged in the exploration, evaluation, development, production and sale of liquefied natural gas and condensate in assigned permit areas; Australia Oil; Browse FLNG; and Wheatstone LNG. As of Dec 31 2015, Co. had proved reserves of 1.15 billion barrels of oil equivalent.