Oil markets today reacted to the latest production cutback agreement among OPEC and other oil-producing nations. The question remains whether OPEC’s plan will still have such an impact six months from now.Oil markets closed up today to a near 18-month high on the news that an OPEC production cutback agreement was met with an agreement from more oil-producing nations to join in the reduction. The jump in price came despite the fact that any production caps won’t be in place until next month. According to an OPEC press statement, “The global oil market has witnessed a serious challenge of imbalance and volatility pressured mainly from the supply side. It has led to significant investment cuts in the oil industry, which has a direct impact on...