Jochem Scherpenisse

Gulf Indonesia Resources Ltd. explores and produces oil and natural gas primarily on the island of Sumatra. The company was founded in 1997 and is headquartered in Jakarta, Indonesia.

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.

Sensa Ltd. designs and manufactures fiber optic sensors. The firm offers fire detection, power circuit temperature monitoring, trace heat monitoring, leak detection systems for pipeline and cryogenic storage, and monitoring other critical assets. Its solutions include design and engineering, support, and user interface. The company was founded in 1984 and headquartered in Southampton, the United Kingdom.

Naftogaz of Ukraine NJSC engages in petroleum and natural gas field operations. Its activities include imports and wholesales trading, extraction and processing, transmission, storage, distribution and supply of oil products, and upstream, transmission, storage, refinery, distribution and supply of gas products. The company was founded in 1998 and is headquartered in Kiev, Ukraine.

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.

Eastern Drilling AS owns and operates offshore oil rigs and drilling vessels. It is an offshore drilling company that develops semi-submersible drilling rigs for operations in harsh and deep water environments. The company was founded on March 4, 1997 and is headquartered in Stavanger, Norway.

Virginia Explosives & Drilling Co., Inc. operates as a drilling contractor. It delivers contract drilling and blasting services for the coal mining, quarry, and construction industries. The company was founded in 2006 and is headquartered in Vansant, VA.

VEDCO Holdings, Inc. operates as a holding company with interests in providing outsourced drilling and blasting services. It specializes in drilling and blasting, from regulatory issues to safety procedures and blast design. The company was founded in 2006 and is headquartered in Vasant, VA.

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

Epi-V LLP is a private equity firm headquartered in UK. The firm was established in 2007 following the financial commitment of LDC which is part of Lloyds TSB Development Capital. It invests in emerging technology and service firms in the upstream oil and gas services sector.

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.

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.

Noble Rochford Drilling Ltd. operates an oil and gas offshore drilling rig. The company was founded on January 19, 2000 and is headquartered in Sugar Land, TX.

Silixa Ltd. provides fiber optic monitoring solutions. It delivers data from distributed fiber-optic acoustic (iDAS™) and temperature (ULTIMA™ DTS and XT-DTS™) measurements. The firm offers products and services in the area of Oil & Gas, Pipeline Surveillance, Flow Metering, and Distributed Sensing. The company was founded by Mahmoud Farhadiroushan, Tom Parker, and Sergey Shatalin in April 2007 and is headquartered in Elstree, United Kingdom.

Part of PT Medco Daya Abadi Lestari, PT Conocophillips Indonesia Ltd. offers exploration, development, and production of oil and gas. The company is based in Jakarta, Indonesia.

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.

OiLSERV Co. provides oilfield services. It offers wireline logging, cementing and stimulation, coiled tubing, surface and downhole testing, slickline, fluids solutions, and drilling services. The company was founded by Amjad Barzandji in 2006 and is headquartered in Erbil, Iraq.

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.

Tercel Oilfield Products Ltd. designs and produces drilling and well construction products. It offers fixed cutter bits, roller cone, cutter technology, reamers, drilling heads, stabilizers, shock tools, jars, motors, centralizers, casing and reaming shoes, navigators and driltools. The company was founded in January 2010 and is headquartered in Dubai, the United Arab Emirates.

Part of EnQuest Plc, Enquest Progress Ltd. engages in the production and development of oil and gas fields. The company is based in Leeds, UK. Enquest Progress was acquired by EnQuest Plc from Whalsay Energy Holdings Ltd.

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.

Repsol Sinopec Resources UK Ltd. is an oil and gas exploration and production company with interests in 48 fields, of which they operate 38, on the Continental Shelf with 11 offshore installations and two onshore terminals. The joint venture company is based in Aberdeen, UK and have subsidiaries in the United Kingdom. Plans are underway for the decommissioning of the oil field, platform complex, two demonstrator wind turbines, pipelines, and cables. The CEO of the British company is Luis Polo.

M-Flow Technologies Ltd. provides multiphase metering and monitoring for the upstream oil and gas production. The company was founded by Giles Frederick Edward in 2012 and is headquartered in Oxfordshire, the United Kingdom.

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.

Ardyne Holdings Ltd. is a specialist downhole technology and British services company founded in 2015. The private company is based in Aberdeen, UK and is backed by Lime Rock Partners. Ardyne's team are industry leaders in milling planning and execution with a new fleet of casing and section mills. The company offers patented technology for sale, supported by their Knowledge Transfer and training service. Ardyne's services are aimed at reducing rig time on Well Abandonment, Slot Recovery, Workover and Exploration operations. The company has 100+ employees and additional facilities in various locations.

Well-Safe Solutions Ltd. engages in the provision of abandonment services. The company was founded by Mark Alexander Pirie Patterson in 2017 and is headquartered in Aberdeen, the United Kingdom.