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Seneca Resources Company, LLC, the exploration and production segment of National Fuel Gas Company, headquartered in Houston, Texas, explores for, develops, and produces natural gas in the Appalachian Region including the Marcellus and Utica Shales.Our above-and-beyond environmental stewardship includes 100% responsibly sourced gas designations, innovative technology, state-of-the-art water management, and a robust biodiversity program.