Columbia Gas Transmission is a natural gas pipeline that gathers gas in the Gulf of Mexico and transports it to New York. Its pipelines are in Pennsylvania, New Jersey, Maryland, Ohio, Virginia and West Virginia. It is owned by TransCanada Corporation. Its FERC code is 21. See also List of North American natural gas pipelines Sources External links Natural gas pipelines in the United States Natural gas pipelines in New York (state) Natural gas pipelines in Pennsylvania Natural gas pipelines in Ohio Natural gas pipelines in New Jersey Natural gas pipelines in Maryland Natural gas pipelines in Virginia Natural gas pipelines in West Virginia