Tag Archives: reserves

USGS says Powder River Basin has 40 years of coal reserves, not 250

[ The Powder River Basin (PRB) in Wyoming and Montana supplies 42% of coal in the United States, mainly to generate electricity across the nation.  So far 11 billion tons of coal filling 95 million rail cars have been removed. … Continue reading

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EIA definition of Proved Reserves and Resources

July 17, 2014 Oil and natural gas resource categories reflect varying degrees of certainty Source: U.S. Energy Information Administration Note: Resource categories are not drawn to scale relative to the actual size of each resource category. The graphic shown above … Continue reading

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