MarkWest Loses 28K Barrels of Non-Toxic Drilling Mud in PA Coal Mine

If a tree falls in a forest and no one is around to hear it, does it make a sound? Similarly, if a pipeline being drilled loses 28,500 barrels (1.2 million gallons) of nontoxic drilling mud into an abandoned coal mine void, does it matter? The environmental left is attempting to make a big deal out of MarkWest Liberty Midstream's drilling project in Washington County, PA, in which the company has, over a series of 19 different episodes, lost a cumulative 28,500 barrels of nontoxic bentonite drilling mud into an old coal mine void as it drilled the Chiarelli to Imperial Pipeline Project, between October 2025 and January 2026. Bentonite is the same stuff used to make kitty litter and toothpaste.

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