I've seen it with oil before.
Much of the price 'increase' in oil is a result of the crash of the dollar. If the dollar recovers, oil will move sharply down.
This is how it is usually presented, but believe it or not, I saw one analyst, or perhaps reporter, stating the opposite. They said the dollar is falling because of the rise in oil prices, LOL.
Funny that the dollar showed a small bounce in the last few weeks, while oil kept on going up. Helped by silly Goldman prognostications, no doubt.