The 305-mile (491-km) Tuscarora Gas Transmission System delivers natural gas from the Western Canadian Sedimentary Basin, the Rocky Mountains and other US basins to communities in California and Nevada. 

The U.S. draws from a variety of energy sources to support its population of roughly 330 million people. Prominent in that energy mix is natural gas, thanks to its local abundance, affordability, reliability and lower emissions compared with other hydrocarbons.

Take a closer look at maps of our North American natural gas operations.

We focus on providing safe, reliable and competitive natural gas transportation to meet our customer's needs and bring on additional capacity to meet growing demand.

With more than 30 storage locations in four states, Columbia Gas Transmission Storage has enough capacity to handle almost 630 billion cubic feet of natural gas.

Great Lakes Gas Transmission is a 2,115-mile (3,404-km) natural gas pipeline system that transports Canadian natural gas to the U.S. Midwest.

The 295-mile (475-km) Portland Natural Gas Transmission System spans New England from the Canadian border to pipeline connections in New Hampshire, Maine and Massachusetts.

Iroquois is a 414-mile (666-km) interstate natural gas pipeline system that extends from the Canadian border to Commack and the Bronx, NY.