The pipeline, which was originally scheduled to be completed in the first quarter of 2013, has an initial capacity of about 209,000 barrels per day.
The 570-mile, 16-inch pipeline, extends from Winkler County in West Texas to ETP’s Jackson County processing plant in Jackson County, Texas.
It is owned by Lone Star NGL, a joint venture between the two partnerships.
The company transports natural gas liquids (NGLs) produced in the Permian and Delaware Basins in West Texas to Mont Belvieu, Texas.
Lone Star NGL executive vice president Steve Spaulding said, "The West Texas Gateway is critical in supporting the rapid increase in the production of natural gas liquids in the Permian Basin and Delaware Basin as well as throughout the Eagle Ford Shale, where additional NGL takeaway capacity is in high demand."