National Fuel Gas Company operates as a diversified energy company It operates through four segments Exploration and Production Pipeline and Storage Gathering and Utility The Exploration and Production segment explores for develops and produces natural gas and oil in California and in the Appalachian region of the United States As of September 30 2021 it had proved developed and undeveloped reserves of 21537 thousand barrels of oil and 3723433 million cubic feet of natural gas The Pipeline and Storage segment provides interstate natural gas transportation and storage services through an integrated gas pipeline system in Pennsylvania and New York and owns and operates underground natural gas storage fields This segment also transports natural gas for National Fuel Gas Distribution Corporation as well as for other utilities industrial companies and power producers in New York State and owns and operates the Empire Pipeline The Gathering segment builds owns and operates natural gas processing and pipeline gathering facilities in the Appalachian region as well as provides gathering services to Seneca Resources Company LLC The Utility segment sells natural gas or provides natural gas transportation services to approximately 753000 customers in Buffalo Niagara Falls and Jamestown New York and Erie and Sharon Pennsylvania The company markets gas to industrial wholesale commercial public authority and residential customers primarily in western and central New York and northwestern Pennsylvania As of September 30 2021 the company also owned approximately 95000 acres of timber property and managed approximately 2500 additional acres of timber cutting rights National Fuel Gas Company was incorporated in 1902 and is headquartered in Williamsville New York