The TC Louisiana Intrastate Pipeline (TCLI) is an intrastate natural gas pipeline system that originates in Gillis, Louisiana and extends to various downstream Louisiana delivery points in Jefferson Davis parish.

Trans Québec & Maritimes Pipeline (TQM) has been operational since 1982 and has operated a gas transmission system since 1982. The pipeline connects with the Canadian Mainline near the Ontario/Québec border to transport natural gas to the Montréal and Québec City corridor, and interconnects with the Portland Natural Gas Transmission System from the Northeast US.