35 operating power generation equipment and facilities for others and business management supervision of pipeline projects for economic utilization of natural gas
36 brokerage services in the field of natural gas, fuel oil, propane, and electricity
37 maintenance of power generation equipment and facilities for others; supervision of construction management for the building of energy power plants; and gas drilling and pumping
39 distribution of energy for others, namely, fuel oil, natural gas, propane, and electricity and the storage of natural gas, fuel oil, and propane for others