Oil prices were already falling before the midterms, driven by supply and demand. Once things calmed down on the Iran front, the U.S., Venezuela, and Saudi Arabia stepped in to fill the gap, keeping prices down for now. If fighting breaks out again, prices will surge. Watching the market too long can make you see only what you want to see. What’s really going on this time—who’s stepping in and who’s pulling out? Share your thoughts.