The ethane production from the Marcellus/Utica Shale areas of Pennsylvania, West Virginia and Ohio will be delivered by the 1,230-mile system to Mont Belvieu in Texas.

Enterprise executive vice president and chief operating officer A.J. Teague said the firm already has long-term commitments that are more than sufficient to proceed with ATEX Express pipeline development.

Teague said the company will still continue to receive steady interest from other producers who seek long-term transportation capacity.

"We will use this open commitment period to determine market interest in executing additional binding, 15-year transportation agreements," Teague added.

Enterprise Products Partners’ assets include about 50,700 miles of onshore and offshore pipelines, and 14 billion cubic feet of storage capacity for natural gas.

It also has 190 million barrels of storage capacity for NGLs, petrochemicals, refined products and crude oil.