Michael John Wagstaff

Vedanta Resources Ltd. engages in the extraction and processing of minerals, oil, and gas. It operates through the following segments: Zinc-India, Zinc-International, Oil and Gas, Iron Ore, Copper-India/Australia, Copper-Zambia, Aluminum, Power, and Others. The Others segment comprises of port and berth, and glass substrate business. The company was founded by Anil Kumar Agarwal in 1976 and is headquartered in London, the United Kingdom.

Centrica Production Ltd. acquires, develops and produces oil and gas. The firm engages in exploration, development and production of crude petroleum and natural gas. The company was founded by Laurence William Kinch, Mike Fleming and Bruce Alan Ian Dingwall in 1996 and is headquartered in Aberdeen, the United Kingdom.

North Sea Midstream Partners Ltd. owns and operates midstream oil and gas infrastructure assets. It offers offshore pipelines, onshore gas or oil processing plants and associated storage facilities many of which are currently owned and operated by upstream field owners. The company was founded by Michael J. Wagstaff and Andy Heppel in 2012 and is headquartered in Loirston, the United Kingdom.

Robit GB Ltd. designs and manufactures drilling equipment. The firm offers button bits, valved, hyper, and large diameter hammers, large diameter button bits, overburden and eccentric drilling systems, shock absorbers, drill tubes and drilling accessories. The company was founded on October 12, 1973 and is headquartered in Chesterfield, the United Kingdom.