National Fuel Gas Co. is a holding company, which engages in the production, gathering, transportation, distribution, and marketing of natural gas. It operates through the following segments: Exploration and Production, Pipeline and Storage, Gathering, and Utility. The Exploration and Production segment handles the exploration for and the development of natural gas and oil reserves in California and in the Appalachian region of the United States. The Pipeline and Storage segment transports and stores natural gas for utilities, natural gas marketers, exploration and production companies, and pipeline companies in the northeastern United States markets. The Gathering segment builds, owns, and operates natural gas processing and pipeline gathering facilities in the Appalachian region. The Utility segment sells natural gas to retail customers and provides natural gas transportation services in western New York and northwestern Pennsylvania. The company was founded in 1820 and is headquartered in Williamsville, NY.