(1) - Business marketing services for others in the field of petroleum, natural gas and related hydrocarbons, namely, providing marketing strategies for others in the field of petroleum, natural gas and related hydrocarbons, extraction and development of existing pools of petroleum, natural gas and related hydrocarbons
(2) - Petroleum and fuels, namely crude oil, natural gas, natural gas liquids, natural gasoline, gasoline and diesel
(3) - Coal and fuel oil
(4) - Transportation of petroleum, natural gas and related hydrocarbons via pipeline, rail or truck
(5) - Storage of petroleum, natural gas and related hydrocarbons
(6) - Production of petroleum, natural gas and related hydrocarbons
(7) - Exploration for petroleum, natural gas and related hydrocarbons
(8) - Research and development services in the field of alternative energy
(9) - Research and development of technologies for use in the extraction of, exploration for, development or production of petroleum, natural gas and related hydrocarbons
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