You are viewing a single comment's thread from:RE: Insight into the world of crude oil: from digging to refining, to a look at other ‘by-products’. – WELLS AND DRILLING PROCESS EXPLAINEDView the full contextwafrica (66)in #stemng • 7 years ago Hello! I find your post valuable for the wafrica community! Thanks for the great post! @wafrica is now following you! ALWAYs follow @wafrica and use the wafrica tag!