John A. Holland

Warburg Pincus LLC (Warburg Pincus) is a private equity subsidiary of Warburg Pincus & Company US LLC founded in 1966. The firm is headquartered in New York.

Hawkwood Energy Management LLC engages in production of oil and gas. It focuses in its East Texas operations. The company was founded by Peter E. Jeffe in 2011 and is headquartered in Denver, CO.

Rubicon Oilfield International Ltd provides support activities for oil and operations. The firm offers drilling and completion solutions and products. It also offers directional, horizontal well construction, performance, extended reach drilling, hole conditioning and frac plug milling applications. The company was founded by Michael E. Reeves and John B. Griggs in June 2015 and is headquartered in Houston, TX.

Rubicon Oilfield International Holdings LP provides oilfield services and related equipment. It offers below and above ground oilfield services, as well as drilling well construction solutions. The company was founded by Scott Watson in 2015 and is headquartered in Houston, TX.

MNRL Sub, Inc. engages in the acquisition and managing of a portfolio of mineral and royalty interests. Its portfolio includes basins in the United States, consisting of the Permian Basin in Texas and New Mexico, the SCOOP and STACK plays in the Anadarko Basin of Oklahoma, the DJ Basin in Colorado and Wyoming, and the Williston Basin in North Dakota. The company was founded by Ben M. Brigham in November 2012 and is headquartered in Austin, TX.

VTX Energy Partners LLC provides oil and gas exploration services. The company was founded by Eugene B. Shepherd and is headquartered in Austin, TX.

Conquest Completion Services LLC operates as an oilfield services company providing coiled tubing services, as well as surface equipment rentals. It offers coil tubing, downhole motors, completion fluids, oil skimmers, flow back and rental equipment. The company was founded by Nathan Moore in 2014 and is headquartered in Bossier, LA.

Goldberg Lindsay & Co. LLC (Goldberg Lindsay & Co) is a private equity arm of LG GP Holding III LLC founded in 2001 by Alan E. Goldberg and Robert D. Lindsay. The firm is headquartered in New York.