William E. Haley

Superior Well Services, Inc. provides wellsite solutions to oil and natural gas companies, primarily technical pumping services and down-hole surveying services. The company was founded in March 2005 and is Headquartered in Indiana, PA.

Diamondback Energy Services, Inc. provides oil and natural gas exploration services. Its services include drilling, stimulation and pumping, fluid logistics, well completion, and production. The company's clients include Chesapeake Energy, EOG Resources, and Devon Energy. Diamondback Energy Services was founded in December 2005 and is headquartered in Oklahoma City, OK.

Oilfield Management Services LLC is a diversified oilfield service company. It provides horizontal drilling and well stimulation services primarily in the onshore unconventional tight sands and shale oil and natural gas. The company operates through two segments: Completion & Production Services and Horizontal & Directional Drilling Services. The Completion & Production Services segment provides pressure pumping and pressure control services. The Horizontal & Directional Drilling Services segment is designed to drill unconventional wells. The company was founded on September 29, 2005 and is headquartered in Oklahoma City, OK.