This category is for sites related to the extraction, production or supply of oil and gas products, including operating companies and holding companies, consultants, and service providers. Sites relating only to oil and gas for the consumer (gas stations) are listed in the United States Shopping category.
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- Guttman Group Parent company of Guttman Oil Company, Source One Transportation and Bulk Terminal Storage. Serves the commercial, wholesale, and retail markets in the eastern states. Headquartered in Belle Vernon, Pennsylvania.