Gas turbine generators and gas engine generators are power plants that are often encountered in oil and gas companies. Kangean Energy Indonesia Ltd is one of the leading oil and gas companies and owns natural gas wells and processes them into gas sales. With the presence of natural gas dipagerungan, it is more efficient if the power plant in the pagerungan uses natural gas fuel. Load sharing operations for gas turbine generators and gas engine generators are used for the purpose, increasing the electricity generated for gas supply refinery plants and Pagerungan Besar Island, simplifying workmanship if there is repair of the plant, maintaining continuity of electricity supply in Pagerungan. Turbine gas is an internal combustion engine. As a generator of generators, gas turbine and gas engine have different working principles. Turbine gas with axial compressor and gas engine with piston. The machine rotates the generator to produce electricity. Main generator, 5 units and 1 backup generator. 3 x 500 Kilo Watt 480 Volt and 2 x 1000 Kilo Watt 4160 Volts to supply electricity to the gas refinery plant and the whole island pagerungan generator works parallel in load sharing operations. Before working interconnected in advance the load is estimated, then synchronized and the unit can work in load sharing operations. Synchronization is controlled by SPM-A, loading per unit is controlled by automatic generator loading control, and load sharing and overall speed is controlled by load sharing and speed control