By Bret Kenwell Oil prices are down more than 11% so far this week. The chart holds an important hint for investors. Oil prices have been under pressure this week as a series of headwinds knocked the commodity lower. Oil futures are down about 3% on Wednesday and fell more than 8% on Tuesday as oil broke below $100. In all, it’s down almost 11% so far this week. The major concern right now is a recession. If there’s a global recession — and some may argue we’re in a recession right now — then energy demand is going to take a hit. Other headwinds include North American production picking up pac…