Regional reserves, regional reserve estimates (coal)

What is Regional reserves, regional reserve estimates (coal)?

Regional reserves, regional reserve estimates (coal) meaning Same as reserves; alternative wording is used by EIA to distinguish regional reserves, which are derived by factoring (downward) from a demonstrated reserve base for one or more study areas or regions, from reserves at active mines, which are aggregated (upward) from reserve estimates reported by individual mines on Form EIA-7A.

 

reference: Glossary – U.S. Energy Information Administration (EIA)

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