J Studios/DigitalVision via Getty Images Introduction OPEC has turned into a party-pooper, throwing a wrench in the bullish oil price thesis, at least for the time being. As some may have noticed, earlier this month, OEPC+ announced gradual production increases after somewhat aggressive production cuts in the past were used to protect oil prices. The accord prolongs roughly 2 million barrels a day of cuts, which have played a key role in supporting crude prices above $80 a barrel this year but were set to e ...