Joseph Darby

Centurion Energy International, Inc. explores and produces oil and natural gas. The company was founded by Said Youssefa Arrata and Barry Swan on May 20, 1997 and is headquartered in Calgary, Canada.

DNO North Sea Plc engages in the exploration, appraisal, development, and production of oil and gas. The company was founded on December 19, 2002 and is headquartered in Aberdeen, the United Kingdom.

Mowlem Plc provides solutions in building, construction, infrastructure and environmental services. It provides construction & support services to public and private sector customers from major building & infrastructure projects through to smaller building & civil engineering works and from total facilities management through to direct delivery of mechanical & electrical, cleaning and security services. The company was founded in 1822 and is headquartered in Isleworth, UK

Alkane Energy Ltd. produces coal mine methane. It engages in the production of clean and green energy primarily from methane. The firm operates mid-sized gas to power electricity plants providing both predictable and fast response capacity to the grid. The company was founded by William Cameron Davies on September 12, 1994 and is headquartered in Edwinstowe, the United Kingdom.

British Nuclear Fuels Plc provides nuclear fuel services and generates electricity. Its activities include cover remediation, decommissioning, waste management, and effluent treatment. The company was founded in 1971 and is located in Warrington, UK.