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Ameredev is an Austin-based exploration and production company focused on the acquisition and development of oil and gas properties in the United States.
Alpha Seismic Compressors is a Portland, OR-based company in the Energy and Utilities sector.
Heli-port Drilling is a Grand Junction, CO-based company in the Energy and Utilities sector.
Army Trail Shell is a Bloomingdale, IL-based company in the Energy & Utilities sector.
HollyFrontier Corporation, headquartered in Dallas, Texas, is an independent petroleum refiner and marketer that produces high value light products such as gasoline, diesel fuel, jet fuel and other specialty products. HollyFrontier operates through its subsidiaries a 135,000 barrels per stream day ("bpsd") refinery located in El Dorado, Kansas, a 125,000 bpsd refinery in Tulsa, Oklahoma, a 100,000 bpsd refinery located in Artesia, New Mexico, a 52,000 bpsd refinery located in Cheyenne, Wyoming and a 31,000 bpsd refinery in Woods Cross, Utah. HollyFrontier markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states.