Columbia Gas Transmission LLC
Columbia Gas Transmission transports an average of 3 billion cubic feet of natural gas per day through a nearly 12,000-mile pipeline network in 10 states, serving hundreds of communities. Our customers include local gas distribution companies, energy marketers, electric power generating facilities and hundreds of industrial and commercial end users.
Columbia Gas Transmission also owns and operates one of North America’s largest underground natural gas storage systems that includes 37 storage fields in four states with nearly 600 billion cubic feet in total capacity. Using depleted natural gas production reservoirs, we safely store gas when demand is low so it can be made available to our customers during times of peak usage.
Within the natural gas industry, Columbia Gas Transmission is often referred to as TCO.
