投稿日：2018/04/22(日) 13:03
投稿者：Jarred　[home]　[mail]

Could you give me some smaller notes? invite cocoa hx U.S. utilities have been burning less thermal coal in recentyears as the boom in hydraulic fracturing extraction techniqueshas driven down prices for natural gas. Higher natural gasprices this year, however, have prompted a switch back tocheaper coal. Natural gas-fired electricity generation hasdeclined 14 percent this year, Peabody said.