Template:Coal - OilfieldWiki

v t e Coal in nature

Coal by grade	peat¹ · lignite · sub-bituminous coal · bituminous coal · anthracite · graphite¹

Coal combustion	char · coal seam fire · energy value

Coal mining	coalfields · coal gas · history · mining regions

Coal types are ordered by grade. 1: peat is considered a precursor to coal, while graphite is only technically considered a coal type