▁of ▁the ▁greater ▁supply , ▁consumer ▁prices ▁for ▁natural ▁gas ▁are ▁significantly ▁lower ▁in ▁the ▁United ▁States ▁than ▁in ▁Europe ▁and ▁Japan . ▁ ▁The ▁low ▁price ▁of ▁natural ▁gas , ▁together ▁with ▁its ▁smaller ▁carbon ▁foot print ▁compared ▁to ▁coal , ▁has ▁encourag ed ▁a ▁rapid ▁growth ▁in ▁electric ity ▁generated ▁from ▁natural ▁gas . ▁ ▁Between ▁ 2 0 0 5 ▁and ▁ 2 0 1 4 , ▁US ▁production ▁of ▁natural ▁gas ▁liqu ids ▁( N GL s ) ▁increased ▁ 7 0 %, ▁from ▁ ▁per ▁day ▁in ▁ 2 0 0 5 ▁to ▁ ▁per ▁day ▁in ▁ 2 0 1 4 . ▁ ▁The ▁US ▁has ▁been ▁the ▁world ' s ▁leading ▁producer ▁of ▁natural ▁gas ▁liqu ids ▁since ▁ 2 0 1 0 , ▁when ▁US ▁N GL ▁production ▁passed ▁that ▁of ▁Sa udi ▁Arab ia . ▁ ▁Although ▁the ▁United ▁States ▁leads ▁the ▁world ▁in ▁natural ▁gas ▁production , ▁it ▁is ▁only ▁fifth ▁in ▁proved ▁res erves ▁of ▁natural ▁gas , ▁behind ▁Russia , ▁Iran , ▁Q atar , ▁and ▁Turk men istan . ▁ ▁Co al ▁ ▁Generation ▁of ▁electric ity ▁is ▁the ▁largest ▁user ▁of ▁coal , ▁although ▁its ▁use ▁is ▁in ▁decl ine . ▁ ▁About ▁ 5 0 % ▁of ▁electric ▁power ▁was ▁produced ▁by ▁coal ▁in ▁ 2 0 0 5 , ▁decl ining ▁to ▁ 3 0 % ▁in ▁ 2 0 1 6 . ▁Electric ▁util ities ▁buy ▁more ▁than ▁ 9 0 % ▁of ▁the ▁coal ▁consum