The crude oil output increased to 4,144,597 barrels in 1985, but the natural gas decreased to 5,862,313 mcf. In 2000 crude oil production was down to 3,251,509 barrels, and natural gas was up to 9,380,918 mcf. In 2001 Duke Energy North America built a power plant (which it sold to NRG Energy, Inc., that year) near Newcastle.