Gregory L. Miller

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 Resources LLC manages oil and natural gas properties in the United States. It focuses on acquisition, exploration, and management of oil and gas wells. The company is headquartered in New Orleans, LA.

Optimal Energy, Inc. operates as energy consultancy. It offers energy efficiency, renewable energy and demand-side management. The company is headquartered in Moorestown, NJ.