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.
Thesaurus: synonyms and related words. Difficult situations and unpleasant experiences. a (heavy) cross to bear idiom. a cloud on the horizon idiom. a fate worse than death idiom. a hard/tough row to hoe idiom. a narrow squeak idiom. bind.