June 17, 2019
OFS Energy Fund Sells Allied Power Group to AEA Investors
Transaction generates strong return for OFS’s Fund III limited partners over ownership period

Active Investments - Fund III / Fund II

Fund III Portfolio


Integrity Gas Services, LLC is an oilfield and industrial services company providing nitrogen sales and pumping services to the upstream, midstream, and downstream oil and gas sectors, as well as specialty pump down services to the upstream oil and gas sector. Integrity is headquartered in Houston, Texas with additional field offices in West Texas and operations across all major US basins and the Gulf Coast. For more information, please visit


Pro Oilfield Services, LLC is an oilfield services company providing wireline, wireline lubrication, top-hole drilling, solids control, mixing plants/chemicals, and torque and test services. The Company is headquartered in Houston, Texas and operates in the Marcellus Shale and Utica Shale regions of Pennsylvania, the Haynesville Shale region of Louisiana, the Permian Basin region of West Texas, and the Eagle Ford Shale region of South Texas. For more information, please visit


VanZandt Controls, LLC specializes in valve automation, valve sourcing, instrumentation, and process controls. The Company is headquartered in Odessa, Texas. For more information, please visit


Shale Support is a provider of logistical services and frac-sand or “proppant” products to enhance the recovery rates of hydrocarbon products from natural gas and crude oil wells. With headquarters in Picayune, Mississippi, and sand mines in both Mississippi and Louisiana, the company operates an extensive mining and transload network strategically aligned with key destination terminals that serve the Marcellus, Utica, Haynesville, Tuscaloosa, Mid-Con, Permian and Eagle Ford Shale Basins. For more information, please visit


Ace Completions provides completion chemicals, wellhead services, and transportation and logistics services primarily in the Permian Basin. The Company is headquartered in Odessa, Texas. For more information, please visit


Fund II Portfolio


Bold Production Services provides early production systems and bulk separation equipment, as well as gas treatment and process equipment and services for midstream applications. Bold was established in 2013 and is headquartered in Houston, Texas. The company is led by Glen Wind and Blake Maywald, two industry veterans with whom OFS has previous experience. For more information, please visit

Davis Chemical Services is a Texas-based well service company providing pumping services, well service rigs, tank rental and completion chemical sales to the Texas and Louisiana oilfields. Davis Chemical Services is headquartered in Marshall, Texas, and has an additional yard in Nixon, Texas. For more information, please visit

Integral Oilfield Solutions is a newly formed oilfield services business focused on providing engineered equipment and critical services to the offshore drilling industry.  IOS, based in Houston, is a partnership between OFS Energy Fund (financial sponsor) and Mark Provine (CEO) which initially acquired the assets of ODS International.  Mark Provine, the former CEO of Total Instrumentation & Controls, serves as CEO and will assist with integration and growth opportunities.  For more information, please visit
KW International, LLC provides upstream and midstream process and production equipment and related services to the oil and gas industry. Based in Houston, Texas, KWI is in the process of expanding into a new 140,000 square foot advance-design manufacturing facility in Columbus, Texas. Founded by Ken Wind, KWI and its predecessor companies have provided energy solutions for more than 50 years. For more information, please visit
Terra Oilfield Services, LLC provides critical water transfer, treatment and fluids management services to the oil and gas industry primarily during the drilling and completion phases.  TOFS is headquartered in Conroe, Texas and has operations across Texas, Oklahoma, Ohio and North Dakota. For more information, please visit


OFS Energy Fund
6363 Woodway Drive, Suite 900

Houston TX 77057
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Main Number: (713) 580-2727