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Bi-Petro Inc is a Springfield, IL-based company in the Energy and Utilities sector.
A family company founded in 1921, Colonial`s history is rooted in the marketing, retailing, and distribution of petroleum products for the transportation, industrial, and marine applications. Over time, Colonial expanded its offerings to include natural gas marketing, liquid & dry bulk storage, maritime services, and industrial chemical sales. Today, Colonial provides industry leading levels of service, ranking #64 on Forbes List of America`s Largest Private Companies.
Schlumberger Limited is an oilfield services company. Schlumberger employees represent more than 140 nationalities working in more than 120 countries.
Walter Oil and Gas Corporation is a Houston, TX-based company in the Energy and Utilities sector.
Petroleum Helicopters International, Inc., is an American commercial helicopter operator, founded in 1949, by Robert L.