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.
Meaning: A calm lengthy intent consideration. Classified under: Nouns denoting cognitive processes and contents. Synonyms: musing; reflection; rumination; thoughtfulness; contemplation; reflexion. Hypernyms (contemplation is a kind of...): consideration (the process of giving careful thought to something) Hyponyms (each of the following is a kind of contemplation): cogitation; study (attentive consideration and meditation)