Jeffrey Kaufmann

BJ Services Co. LLC engages in the provision of pressure pumping, cementing, stimulation, and coiled tubing services. The company was founded on May 30, 1990 and is headquartered in Houston, TX.

SESI Holdings, Inc. engages in the provision of oilfield services and equipment. It operates through the following segments: Drilling Products and Services, Onshore Completion and Workover Services, Production Services, and Technical Solutions. The Drilling Products and Services segment provides downhole drilling tools and surface rentals. The Onshore Completion and Workover Services segment offers pressure pumping, fluid management and workover services. The Production Services segment consists of intervention services. The Technical Solutions segment involves the products and services that address customer-specific needs with applications which typically require engineering, manufacturing, or project planning. The company was founded by Terence E. Hall in 1989 and is headquartered in Houston, TX.

SPN Well Services, Inc. offers trucking services. The company was founded on June 15, 2007 and is headquartered in Gainesville, TX.