35 operation of cogeneration and other non-regulated electric generation facilities for others; providing accounting, computer data processing and database management, and marketing services in the field of generation, transportation and marketing of oil, gas, electricity and related energy commodities for and to others, operation of power generation equipment and facilities for others; distributorship services and making available for acquisition power and its by-products for and to others, namely, power and its by-products generated from cogeneration, diesel fuel, natural gas, oil, natural gas liquids, liquefied petroleum gas, coal, and related energy sources, providing and arranging for long term natural gas, oil, natural gas liquids, liquefied petroleum gas, petrochemicals and/or refined petroleum products supply contracts; and distributorships services in the field of natural gas, oil, natural gas liquids, liquefied petroleum gas and petrochemicals for others