Portland Natural Gas Transmission, a small 295-mile pipeline spanning New England from the Canadian border to New Hampshire, Maine, and Massachusetts, is owned by TC Energy and Énergir (Noverco, Inc. (Trencap, LP)) and operated by Portland Natural Gas Transmission System. Operating at full capacity, it serves utility/power and marketer sectors, with major customers including Eversource Gas Company, Northern Utilities Inc., and New Brunswick Energy Marketing.