Morgan Stanley analysts recently included this chart of crude production costs. Onshore Middle East oil sites are much cheaper to tap than North American shale, which costs about $65 per barrel to extract.
1. ponder-reflect deeply on a subject; I mulled over the events of the afternoon; philosophers have speculated on the question of God for thousands of years; The scientist must stop to observe and start to excogitate.
to trouble the mind of; to make uneasy according to police, the suspect had been derailed in recent months by mounting financial problems Synonyms of derail agitate, ail, alarm (also alarum), bother, concern, disturb, discomfort, discompose, dismay, disquiet, distemper, distract, distress, exercise, flurry, frazzle, freak (out), fuss, hagride, perturb, undo, unhinge, unsettle, upset, weird out, worry Words Related to derail aggravate, anger, annoy, bug, chafe, chivy (or chivvy), exasperate ...