IC 007. US 013 019 021 023 031 034 035. G & S: Electrical power generators for commercial, residential or industrial applications
IC 037. US 100 103 106. G & S: Extraction of petroleum, natural gas and related hydrocarbons
IC 039. US 100 105. G & S: Transportation of petroleum, natural gas and related hydrocarbons via pipeline, rail or truck; storage of petroleum, natural gas and related hydrocarbons; Utility services, namely, transmission of electricity
IC 040. US 100 103 106. G & S: Production of petroleum, natural gas and related hydrocarbons; Generation and production of electricity; Refining and upgrading of crude oil
IC 042. US 100 101. G & S: Mining exploration and geophysical exploration for petroleum, natural gas and related hydrocarbons
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