Gas Transmission Northwest, a medium-sized 1,378-mile pipeline company owned by TC Energy Corporation and operated by Gas Transmission Northwest Corporation, runs from Kingsgate, British Columbia, to Malin, Oregon. Operating at full capacity, it serves the utility/power and marketer sectors, with prominent customers including Pacific Gas & Electric Co., Portland General Electric, and Tourmaline Oil Marketing Corp. Gas Transmission Northwest LLC owns and operates this natural gas pipeline system extending from the International Boundary near Kingsgate, British Columbia, through Idaho, Washington, and Oregon to the California boundary.