Amjad Barzandji

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.

Slate River Resources LLC explores oil and natural gas with operations focused on developing unconventional natural gas resources in the rocky mountain regions. The company has operations in the Uinta and Piceance Basins in eastern Utah and western Colorado. It was formed on February 8, 2005 and is located in Denver, CO.

Lime Rock Management LP (Lime Rock Management) is Private Equity firm founded in 1998 by Jonathan Clark Farber and John T. Reynolds. The firm is headquartered in Westport with additional office in London.

IDM Group LLC is an acquisition vehicle. The private company is based in Tacoma, WA.

Lime Rock Partners LLC provides investment services in the exploration and production, energy service, and oil service technology sectors. The company was founded by Jonathan Clark Farber and John T. Reynolds in 1998 and is headquartered in Westport, CT.

GEODynamics BV provides oil and gas exploration services. It offers commercial development and perforating technology to the global oil and gas industry. The company was founded in 2003 by David S. Wesson and is headquartered in Amsterdam, the Netherlands

Part of American Block Manufacturing Co., Southwest Oilfield Products, Inc. manufactures fluid end pump products. The company is based in Houston, TX. Southwest Oilfield Products was acquired by American Block Manufacturing Co. from GES-Global Energy Services, Inc. on April 27, 2015.

PanGeo Subsea, Inc. provides underwater 3D acoustic imaging technology for the oil and gas industry. The firms uses Acoustic Corer and Sub-Bottom Imager technologies for providing service. It delivers solutions that mitigate risk and create value for oil and gas, offshore renewable energy and other industries including mining and military applications. The company was founded by Moya Cahill in 2006 and is headquartered in St. John's, Canada.

EnerMech Ltd. engages in provision of mechanical engineering products and services. It offers industrial, process, pipeline, training, electrical and instrumentation, valve supply and manufacture, cranes and lifting, subsea umbilicals and cables, equipment rental and valve integrity management services. The firm serves the petrochemicals, LNG, offshore and onshore oil and gas, midstream, power, defence, renewables, infrastructure and mining markets. The company was founded by Doug Duguid on March 1, 2008 and is headquartered in Aberdeen, the United Kingdom.

TEC Well Service LLC provides workover and well servicing services. The firm operates through the following divisions: Ark-La-Tex, Permian, North Texas, and Niobrara. Its services include workover rigs, swabbing/braided line rigs, tank and vacuum trucks, and pressure pumping/kill truck. The company was founded by Ronald Shore in 1978 and is headquartered in Longview, TX.

Revelation Energy LLC provides coal mining services. The company was founded by Jeffery A. Hoops on February 11, 2009 and is headquartered in Milton, WV.

Expert Petroleum SRL engages in the exploration and production of oil and gas. It designs and finances field rehabilitation work programs to increase the field production and reserves. The company was founded by David Martinon and Michel Louboutin in 2005 and is headquartered in Bucharest, Romania.

UTEC International Ltd. provides geophysical survey services. It offers construction support, industrial measurement, positioning, and hydrographic and route survey services to its clients. The company was incorporated on December 16, 2005 and is headquartered in Aberdeen, the United Kingdom.

River Ridge Energy LLC develops natural oil and gas services. The company was founded in 2009 and is headquartered in Wexford, PA.

AccessESP LLC provides rigless electric submersible pump conveyance solutions for the global oil industry. It offers a permanent magnet motor and a side pocket mandrel wet connect system, into a patented solution consisting of a tubing-mounted permanent completion and a slickline retrievable assembly. The company was founded by Geoff Kimber-Smith and Phil Head in 2004 and is headquartered in Houston, TX.

Arsenal Resources LLC operates as an oil and gas company. It engages in the acquisition, exploration, development and production of oil, natural gas and natural gas liquids. The company was founded by Rob Kozel on June 30, 2011 and is headquartered in Wexford, PA.

GEODynamics, Inc. manufactures perforating equipment. Its offers GTEC which provides services such as charge development and optimization, charge performance benchmarking, perforating system development, customer specific tests and gun collapse testing, software simulation and technik services. The company was founded by David S. Wesson in 2004 and is headquartered in Millsap, TX.

Shelf Drilling Holdings Ltd. provides shallow water drilling services to the oil and gas industry in Asia, Africa and the Middle East. It engages in drilling and completion of exploratory and developmental offshore oil and natural gas wells. The firm's fleet consists of jack up rigs and swamp barges. The company was founded on November 30, 2012 and is headquartered in Dubai, the United Arab Emirates.

Augustus Energy Partners II LLC provides oil and gas exploration services. The firm focuses on leasing and drilling as well as acquisitions of producing properties in the Rocky Mountain region. The company was founded by Steven D. Durrett in 2013 and is headquartered in Billings, MT.

Capstone Natural Resources II LLC provides oil and gas production services. Its primary interest is in the acquisition and enhancement of mature oil producing properties in the Permian Basin of West Texas and Eastern New Mexico through development drilling, down spacing and enhanced recovery. The company was founded on November 2, 2014 and is headquartered in Tulsa, OK.

KSW Environmental LLC engages in provision of silica dust control solutions. It offers Airis Dust Vacuum 4 (ADV-4) that maximizes dust control with minimal disruption to other parts of completion. The company was founded in 2012 and is headquartered in Tulsa, OK.

SDI Gas LLC provides oilfield services. It operates through the following divisions: MEC and HDD. The MEC offers engineering, construction, and repair of natural gas compression stations. The HDD provides directional drilling of gas pipelines under obstructions. The company was founded in 2015 and is headquartered in Mt. Morris, PA.

Ardyne Technologies Ltd. provides oilfield services. It develops and supplies technology and services to the global energy industry, focusing on reducing rig time spent on downhole casing removal in slot recovery and re-entry, workover, and plug and abandonment operations. The company is headquartered in Aberdeen, the United Kingdom.

Wayfinder Resources LLC provides oil and gas exploration and production services. The company was founded in 2017 and is headquartered in Houston, TX.

San Jacinto Minerals II LLC is an American company that engages in oil and gas field operations.

Axis Energy Services LLC provides energy services. Its services include completion, pressure, pumping, nitrogen, and chemical services. The company was founded in 2018 and is headquartered in Longview, TX.

The Children's Museum of Houston is an innovative learning center that focuses on child-centered education to inspire a lifelong passion for learning. The private company is based in Houston, TX. The museum offers 90,000 square feet of interactive and fun exhibits for children to explore.

Prairie Energy distributes electricity.