Lime Rock Partners

Operator of an oil and gas exploration company based in Midland, Texas. The company's operations are focused on acquiring and developing unconventional properties in the Delaware Basin in New Mexico and Texas.

Shelf Drilling, established in 2012 and based in Dubai, United Arab Emirates, specializes in shallow water offshore drilling services for the oil and gas industry. The company operates a fleet of 32 independent cantilever jack-up rigs, serving a diverse client base including government-owned energy companies, integrated oil companies, and independent exploration and production firms across South East Asia, India, West Africa, the Middle East, North Africa, and the Mediterranean. Shelf Drilling's services encompass drilling, completion, and well maintenance for shallow water offshore oil and natural gas wells.

Reveal Energy Services Inc., founded in 2016 and headquartered in Houston, Texas, specializes in hydraulic fracture measurement and monitoring services. The company offers a unique technology that utilizes pressure-based methods to generate accurate hydraulic fracture maps, allowing operators to evaluate the effectiveness of completion designs with minimal operational risk and cost. By employing proprietary software and earth models, Reveal Energy Services can create detailed maps using only surface pressure measurements from observation wells. This innovative approach enables clients to monitor a few stages on each well, thereby maximizing the value of their operations in the geographic mapping industry. As a subsidiary of Statoil Gulf Services L.L.C., Reveal aims to enhance the efficiency and effectiveness of hydraulic fracturing in shale formations.

EV Offshore specializes in advanced downhole video and integrated sensor technology for the oil and gas industry. The company designs ruggedized camera systems capable of operating at depths of 10,000 meters and in extreme conditions of up to 175° C and 15,000 psi. Its services are utilized globally, from the North Slope of Alaska to offshore New Zealand, for various applications including mechanical inspection, well integrity assessment, and production enhancement. By combining high-quality imaging with key measurements, EV Offshore enables clients to diagnose and resolve complex wellbore issues effectively. With a success rate exceeding 95%, the company leverages its in-house research and engineering expertise to provide actionable insights to oil and gas operators, helping them clean up wellbores for optimal image quality.

Vantage Energy is an independent oil and natural gas company focused on the acquisition, development, and exploration of properties in the United States, particularly in the Appalachian Basin. The company operates through two main segments: Exploration and Production (E&P), which involves the exploration and production of oil, natural gas, and natural gas liquids, and Midstream, which provides natural gas gathering and water distribution services for its operations and third-party clients. Vantage Energy also explores tight gas sands, gas shales, and coalbed methane across various regions in North America, including the Green River, Uinta, Piceance, Cherokee, and Fort Worth areas.

Virginia Explosives & Drilling Company, Inc. ("VEDCO") delivers contract drilling and blasting services for the coal mining, quarry, and construction industries

NATCO Group is a medium-sized company that provides process equipment, systems, and services used in the production of oil and gas. Its equipment solutions include oil treating products such as dehydration and desalting products; separation products, including membrane technology, phase separation, gas scrubbing, and solid solutions; and gas conditioning solutions such as contaminant removal, gas processing, and emission control solutions. NATCO Group’s equipment solutions also comprise water quality solutions, including produced water, water injection, and brine treatment products; measurement systems such as custody transfer systems and distribution solutions; automation and controls, including subsea controls, process management controls, and process analytical solutions; and retrofits. The company is headquartered in Houston, Texas.