4 NATURAL GAS, FUEL OIL, MINERAL OIL, NATURAL GAS CONDENSATE, FUEL FOR THE PRODUCTION OF ELECTRICAL ENERGY
37 MINING EXTRACTION, NATURAL GAS EXTRACTION, INSTALLATION AND MAINTENANCE OF OIL, GAS, NATURAL GAS CONDENSATE AND PETROLEUM FUEL PIPELINES, DRILLING OF WELLS
40 TREATMENT OF GAS, OIL, NATURAL GAS CONDENSATE AND FUELS FOR OTHERS, CUSTOM PROCESSING OF OIL, GAS, NATURAL GAS CONDENSATE AND FUELS, REFINING OF CRUDE OIL, GAS, OIL, NATURAL GAS CONDENSATE AND FUELS OF OTHERS, PRODUCTION OF ENERGY
The stippling is a feature of the mark and is not intended to indicate color.