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MarkWest Starts Up New OH Facilities, Restarts Damaged SW PA Processing

Nearly two months after being struck by lightning, the third processing train at MarkWest Energy Partners LP's Houston facility in southwest Pennsylvania is operational, at the same time that new facilities started up in Ohio.

The 355 MMcf/d Houston midstream complex in Chartiers Township, about 30 miles southwest of Pittsburgh, was shut down for days after lightning caused a small fire, damaging its heat exchanger (see Shale DailyMay 29).

The accident forced the company to reroute gas through a header system about 50 miles west to MarkWest's Majorsville complex in Marshall County, WV. Two of the Houston plants were restarted June 2 (see Shale DailyJune 2), while the heat exchanger at the third 200 MMcf/d plant remained shuttered for repairs until Tuesday.

MarkWest also said Tuesday capacity at its Seneca complex in Noble County, OH, had increased to 600 MMcf/d with the startup of a third cryogenic plant. The company plans to complete a fourth 200 MMcf/d processing train there in 2Q2015.  Additionally, the company recently completed a 40,000 b/d de-ethanization facility at its Cadiz facility in Harrison County, OH, where ethane produced will be delivered to the Appalachia-to-Texas Express pipeline, which began service early this year (see Shale DailyDec. 5, 2013).

With those additions, MarkWest said it has completed 25 infrastructure projects in the Marcellus and Utica shales totaling 3 Bcf/d of processing capacity and nearly 200,000 b/d of fractionation (see Shale DailyFeb. 3). The company expects to complete five more projects in the Appalachian Basin by the end of this year, with eight more in the next two years.

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