Comments on: New USGS assessment indicates Wolfcamp shale holds an estimated 20 billion barrels of oil

Comments on: New USGS assessment indicates Wolfcamp shale holds an estimated 20 billion barrels of oil /new-usgs-assessment-indicates-wolfcamp-shale-holds-estimated-20-billion-barrels-oil-40990 Get the latest oil drilling news with 三昇体育 Mon, 21 Nov 2016 16:36:43 +0000 hourly 1 https://wordpress.org/?v=6.1.1