Reserves

Quantities of unextracted coal that comprise the demonstrated base for future production, including both proved and probable reserves. Also see Proved energy reserves; Probable energy reserves; Energy reserves; Proved (measured) reserves, coal; and Probable (indicated) reserves, coal.

See Proved energy reserves.

Includes all proved reserves associated with the company's net working interests.

That portion of the demonstrated reserve base that is estimated to be recoverable at the time of determination. The reserve is derived by applying a recovery factor to that component of the identified coal resource designated as the demonstrated reserve base.