US Estimates Federal Coal Reserves Could Power Nation for 600 Years

Washington, D.C.: The United States Department of the Interior has released a new assessment estimating that coal resources beneath federally managed public lands could meet the nation’s current energy needs for at least 600 years, underscoring the country’s vast untapped fossil fuel reserves. The findings are based on a comprehensive U.S. Geological Survey (USGS) report evaluating coal reserves and resources across federal lands in the contiguous United States and Alaska.

According to the report, federally managed lands in the lower 48 states contain approximately 356 billion short tons of available coal resources, in addition to 4.2 billion short tons of reported coal reserves associated with active mining operations. Alaska is estimated to hold at least 140 billion short tons of additional federal coal resources, making the country one of the world’s largest holders of coal reserves.

Interior Secretary Doug Burgum said the updated assessment provides policymakers with a clearer understanding of the nation’s long-term energy potential. He described coal as an important component of U.S. energy security and electricity generation, adding that the report would help guide responsible management of federal lands while supporting economic growth and reliable power supplies.

The report comes as the U.S. government has taken several steps to strengthen domestic coal production amid rising electricity demand driven by artificial intelligence, advanced manufacturing, and expanding data center infrastructure. The Department of Energy has also announced funding for projects aimed at modernizing existing coal-fired power plants and extending their operational life.

Despite the sizeable resource estimate, analysts note that the report reflects geological availability rather than economically recoverable or environmentally approved production. Future coal development will depend on market conditions, mining economics, environmental regulations, permitting processes, and competition from natural gas and renewable energy sources. Coal’s share of U.S. electricity generation has declined significantly over the past decade, although it continues to play a role in providing reliable baseload power.

The updated assessment is expected to influence future discussions on U.S. energy policy, resource management, and energy security as policymakers seek to balance domestic fossil fuel development with climate and environmental objectives.