Mark Presslie

Darcy Technologies Ltd. engages in the design and manufacturer of downhole sand control technology. The company was founded on February 6, 2010 and is headquartered in London, the United Kingdom.

Deep Casing Tools Ltd. designs and manufactures advanced casing and completion tools for the oil and gas and geothermal industries. It offers Turbocaser Express, Turborunner, Shalerunner, and Turbocaser Deepwater services. The company was founded by Derek Frederick Herrera in 2008 and is headquartered in Aberdeen, the United Kingdom.

The Service Company of Mississippi LLC provides mechanical contracting services. It offers heating, air-conditioning, electrical, plumbing, and generator services for commercial, residential, industrial, and government buildings. The company was founded by Kelly E. Vaughn in 1982 and is headquartered in Meridian, MS.

Schlumberger AG operates as a holding company, which engages in the production, sale, and distribution of alcoholic and non-alcoholic beverages. The firm offers wine, sparkling wine, champagne, and spirituous beverages. It distributes its products under the Gurktaler Alpenkräuter, Rossbacher, Underberg, Asbach, Bols, Metaxa, Leibwächter, Nonino, Stock, Remy Martin, Stolichnaya, XUXU, evian, Volvic, Badoit, Riemerschmid, and SENS brands. The company was founded by Robert Alwin Schlumberger in 1842 and is headquartered in Vienna, Austria.