Thomas Blades

Part of Halliburton Co., NUMAR Corp. is a private company that makes and markets tools used to evaluate subsurface rock formations. The company is based in Malvern, PA. NUMAR was acquired by Halliburton Co. on September 30, 1997 for $430.02 million. The CEO of the company is Melvin Miller.

Linde GmbH is a holding company, which engages in the gas and engineering business. It operates through the following division: Gases, Engineering, and Other Activities. The Gases Division offers a wide range of compressed and liquefied gases as well as chemicals. The Engineering Division delivers olefin, natural gas, air separation, hydrogen, and synthesis gas plants. The Other Activities Division comprises operations of logistics services company Gist. The company was founded by Carl Paul Gottfried von Linde on June 21, 1879 and is headquartered in Pullach, Germany.

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.

SPECTRO Analytical Instruments GmbH manufactrures analytical instruments such as metal analyzers and instruments for the analysis of chemical elements. The company was founded On 6th of June 1979 and is headquartered in Kleve, Germany.