William Rufus Estis

PetroKazakhstan, Inc. produces oil and oil related products. It produces crude oil from eight different zones in the Kumkol Fields, both north, and south. PetroKazakhstan was founded in 1981 and is headquartered in Calgary, Canada.

Rosetta Resources Inc. is an independent oil and gas exploration company, which engages in the acquisition and development of onshore energy resources in the U.S. The company also involves in the purchasing of new undeveloped leases, acquiring oil and gas producing properties and drilling prospects from third parties. Its operations are primarily located in the South Texas, including Eagle Ford shale and in the Southern Alberta Basin in Northwest Montana. The company was founded in June 2005 and is headquartered in Houston, TX.

Part of TETRA Technologies, Inc., Maritech Resources LLC engages in the exploration and mining of oil and gas. The company is based in The Woodlands, TX.

Atlantis Holding Norway AS extracts crude petroleum and natural gas. The Emirati company is ultimately controlled by the Government of China.

Building Management Solutions Integrators Ltd. provides information and assistance on the usage of energy. It designs, installs & maintains building control systems and provides consulting services. The company was founded in 2008 and is headquartered in Windsor, the United Kingdom.