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.
1 to form an opinion or reach a conclusion through reasoning and information as I understand it, this is the best plan that we have Synonyms conclude, decide, deduce, derive, extrapolate, gather, judge, make out, reason, inferRelated Words assume, suppose; conjecture, guess, speculate, surmise; construe, interpret, read; contemplate, philosophize, ...