行业价格指数2014

WTI crude oil futures price

12/23/2014: $57.12/bbl

up$1.19 from week earlier
down$41.79 from year earlier

Natural gas futures price

12/23/2014: $3.171/mmBtu

down$0.448 from week earlier
down$1.292 from year earlier

Retail heating oil price

12/22/2014: $3.079 /gal

down$0.063 from week earlier
down$0.903 from year earlier

Crude oil inventories

12/19/2014: 387.2 mmbbl

up7.3 mmbbl from week earlier
up19.6 mmbbl from year earlier

Weekly coal production

12/13/2014: 19.808 million tons

up0.197 million tons from week earlier
up1.733 million tons from year earlier

（信息摘自“美国能源信息署”）