| Name | Title | Contact Details |
|---|
Frontier Refining and Marketing is a Denver, CO-based company in the Energy and Utilities sector.
NexTier Oilfield Solutions is a leading provider of integrated completions focused on accelerating production in the most demanding US land basins.
Western Refining is a El Paso, TX-based company in the Energy and Utilities sector.
Tri-Valley Corporation is a Bakersfield, CA-based company in the Energy and Utilities sector.
Guttman Oil Company is a Belle Vernon, PA-based company in the Energy and Utilities sector.