Mark Papa

Riverstone Holdings LLC operates as an energy focused investment manager. It conducts buyout and growth capital investments in the exploration and production, midstream, oilfield services, power, and renewable sectors of the energy industry. The company was founded by David Matthew Leuschen and Pierre Fernard Lapeyre, Jr. in 2000 and is headquartered in New York, NY.

Oil States Industries, Inc. manufacturers deepwater production products and subsea pipelines. The firm operates in offshore oil and gas, land oil and gas, defense and general. Its products and services include floating production systems, subsea pipelines and structures, tabular connection systems, fixed structures, decommissioning, cranes, winches, repair, maintenance and refurb, fabrication services, structural test laboratory, acute welding, piper valves, proprietary products, custom molding operations, rotary selector valve, aerospace products, shock mounts, lockseals, clutches and breaks and plugs. The company was founded in 1942 and is headquartered in Arlington, TX.

Casa de Esperanza, Inc. provides safety, support, education and opportunities to the local community. The company is headquartered in 1982 and is headquartered in St. Paul, MN.

Part of SLB NV, Schlumberger NV (Netherlands) is a Dutch company that designs, develops, produces, and supplies technologies, services, products, and systems for the oil & gas industries. The private company is based in The Hague, the Netherlands.