Despite ongoing regulatory snags that have persisted, Energy Transfer Partners LP reaffirmed that its Mariner East 2 (ME2) natural gas liquids (NGL) pipeline project is still on track to enter service by the end of 2Q2018. Management said during a recent earnings call that 94% of the mainline construction is complete and 83% of the horizontal directional drills are complete. Pennsylvania regulators fined the project $12.6 million in early February to resolve dozens of violations, but it was cleared to restart construction, which had been suspended in January. The 350-mile project, which was originally scheduled to enter service in late 2016, would span the Keystone state to deliver Appalachian NGLs to a Philadelphia complex for domestic and international distribution. ME1 is already in service. A third pipeline, known as ME 2X that would run parallel to ME2, is also currently under construction and scheduled to be online in mid-2019.