There were 21 electric generating plants in Mississippi in 1999, with a total installed capacity (utility and nonutility) of 8.9 million kW, almost all coal-fired or gas-fired. Total production in the same year was 34.9 billion kWh. The Grand Gulf Nuclear Station boiling-water reactor, built by Mississippi Power Company in Claiborne County, continues to provide power to consumers within Mississippi.
The Tennessee Valley Authority, the nation's largest producer of electricity, has negotiated and signed a contract with CRSS, Inc., to purchase electric power from a planned lignite power plant, known as the Red Hills Power Project, to be developed in Choctaw County.
Mississippi is a major petroleum producer, ranking 10th in the US in 2002. In that year, there were 1,474 producing wells located within the state. Production of petroleum in 1999 totaled 49,000 barrels per day, and there were proved reserves of 167 million barrels. Mississippi produced 112.8 billion cu ft (3.19 billion cu m) of natural gas during 2002, and proved reserves were estimated at 661 billion cu ft (18.7 billion cu m). Most production comes from the south-central part of the state. In 2000 Missisippi's total per capita energy consumption was 402 million Btu (101.3 million kcal), ranking it 14th among the 50 states.