Kelly Wood

Frontier Energy Services LLC operates a midstream energy firm. Its services include gathering, compression, processing, and treating facilities, and the marketing of natural gas and natural gas liquids. The company was founded by Dave Presley in 2002 and is headquartered in Tulsa, OK.

Encore Energy Pte Ltd. provides energy procurement services. It also offers exploration, development and production of oil and natural gas. The company is headquartered in Singapore.

ESCO Corp. manufactures engineered metal components. It offers lip and tooth systems for hydraulic machines, buckets, truck bodies, underground mining drums, crusher parts and scrap recycling hammers. The company was founded by Charles Frederick Swigert on July 13, 1913 and is headquartered in Portland, OR.

Vesta, Inc. manufactures medical equipments. It provides silicone molding, precision silicone and thermoplastic extruded tubing, assemblies and secondary operations within ISO-certified facilities. The firm leverages its expertise in quality standards, product design, and material selection, and infuses value throughout every stage of the product life cycle. The company was founded in 1972 and is headquartered in Franklin, WI.

Arthur Andersen LLP used to provide accounting services. It was also into consulting services for clients that operate businesses throughout the United States and around the world. Arthur Andersen was founded in 1913 and was headquartered in Chicago, IL.

Frontier Field Services LLC offered natural gas exploration, mining services. The firm also provides natural gas gathering, processing, compression, transportation and marketing services. The company was founded in 2002 and was headquartered in Tulsa, OK.