EQT Converts Marcellus Drilling Rigs to Run on LNG

Drilling rigs take a lot of horsepower to run, and the engines that run them are big and use a lot of fuel. That fuel is typically diesel, and the emissions may (or may not) cumulatively contribute to air pollution if there are enough drilling rigs in a particular region. At least that’s the contention of the federal EPA. EQT, in a public relations coup, is the first to start converting its Marcellus Shale drilling rigs from running on diesel to running on liquefied natural gas (LNG). LNG has a couple of advantages: it costs about 40% less than diesel, and it pollutes less when burned. EQT’s first conversion is a rig operating in northern West Virginia.

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