MarkWest Utica EMG, a joint venture (JV) between MarkWest Energy Partners and Energy and Minerals Group (EMG), has announced its plans to build a new cryogenic plant at Seneca complex and expand its Cadiz gas processing facility in Ohio, US.

The JV is planning to build a new 200 million cubic feet per day (MMcf/d) cryogenic gas processing facility at its Seneca processing complex in Noble County to support the growing production in the southern core of the Utica Shale.

MarkWest Utica’s third Seneca plant will increase the Seneca complex capacity to 600MMcf/d and will support the drilling activities of Antero Resources (Antero), Gulfport Energy and other producers in the southern core of the Utica Shale.

The first two Seneca gas processing plants are expected to begin operations in the final quarter of 2013, while the third plant will start service in the second quarter of 2014.

MarkWest Utica EMG is also developing its Cadiz complex in Harrison County, Ohio and is planning to complete the 200MMcf/d Cadiz II plant.

The plant will increase the capacity of the Cadiz complex to 325 MMcf/d by mid-2014.

MarkWest Energy Partners chairman, president, and chief executive officer Frank Semple said, "Together with our joint venture partner EMG, we are committed to providing our producer customers with fully-integrated midstream infrastructure and award winning customer service in one of America’s most exciting emerging resource plays."