You might be among the many Americans rejoicing at the fairly dramatic drop in prices at the pump during the past few weeks. I didn’t think I’d ever see gasoline below $2/gal. but low and behold, I saw $1.79 at a gas station in the suburbs of Denver. If you’re also among the people who aren’t quite sure how OPEC works to set gas prices globally, then the Telegraph has a wonderful explainer video.

screen capture from the telegraph's video

lines showing plane flight patterns
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