The 11,900-mile (19,200 km) long system is operated by the Tennessee Gas Pipeline Company, a subsidiary of Kinder Morgan.

[11] KM proposed that "approximately 91% of the NED Market Path Component would be co-located along existing utility corridors/adjacent to TGP mainline.

"[13] KM claimed, "NED helps sustain electric grids, reduce emissions, lower energy costs and spur economic growth region-wide.

"[12] The new pipeline would "bring up to 2.2 billion cubic feet per day (62×10^6 m3/d) of natural gas from the Marcellus shale fields to New England and Canadian markets.

"[14] Detractors pointed out the safety issues involved with locating a high-volume, high-pressure gas transmission pipeline through towns and near neighborhoods that would be within the explosion blast zone of a leak.

[16] Ultimately, the NED project was shelved due to a shortage of enough customers to justify an increased natural gas supply in New England.

Corrosion (internal or external), equipment malfunctions, manufacturing defects, faulty welds, and incorrect installation together accounted for 56% of leaks and more than $90 million in property damage.