Gas Transmission Northwest Corporation, also known as the GTN system, has been transporting natural gas to the western energy markets since 1957. It has pipelines in northern Idaho, southeastern Washington and central Oregon. The company interconnects with Pacific Gas & Electric Company, Northwest Pipeline Corporation and Tuscarora Gas Transmission Company. Gas Transmission Northwest Corporation also transports more than 2.9 billion cubic feet of gas on a daily basis. It has over 10 compressor stations. In addition, the company serves nearly 45 businesses, as well as producers, marketers, and electric and gas utilities. Gas Transmission Northwest Corporation has a staff of approximately 150 employees. It is a part of TransCanada Corporation. The company is regulated by the Federal Energy Regulatory Commission and the Department of Transportation.