EQT was the first driller in the Marcellus Shale to convert a drilling rig to run on electricity produced by engines using an LNG/diesel mix (see this MDN story). CONSOL was next to experiment with converting some of their rigs to use LNG/diesel (see this MDN story). Then Seneca Resources, the gas drilling arm of National Fuel Gas Company, announced two of their drilling rigs will use 100% LNG as fuel (see this MDN story).
What started as a trickle is turning into a flood in Pennsylvania and throughout the Marcellus/Utica region and beyond. More companies are in the process of converting fleets to run on LNG or a mix of LNG/diesel. These new conversions will not only power initial drilling, but will also power the massive pump engines and heavy equipment used in the fracking process itself…