A method of fueling a gas turbine with methane gas originating from low-methane (40%-80%) natural gas comprising the following steps: 1) blending inert gas and a natural gas stream, 2) removing at least one acid from the blend, 3) hydrating the blend, 4) converting part of the methane to hydrogen, 5) dehydrating the blend obtained in step (4) for ultimately obtaining a dehydrated hydrogen enhanced inert gas/methane gas/hydrogen gas blend, and 5) fueling a gas turbine with the blend obtained in step (5).