See the article about a refinery in the Midwest going down for maintenance temporarily. Gas Buddy is a good source for analysis and news about oil and gasoline prices as well as looking up local prices.
According to the article, prices should resume their downward slide through the fall, though there can be temporary spikes along the way.
https://blog.gasbuddy.com/ " Great Lakes Gas Prices Expected to Rise on Unplanned Refining Issue
By coincidence, I also live in Royal Oak. I usually fill up at one of the stations at Crooks and 12 Mile. I find they're usually the cheapest in the Royal Oak area. I filled up this morning at $2.41.9/gal, which is the lowest it's been there in awhile. Based on the article above I expect to see a temporary spike in price over the week or so until that refinery comes back online, which is why I filled up rather than wait.
The thing to remember is that while they are certainly connected, gasoline and oil prices can fluctuate in opposite directions sometimes. Oil production (how much is pulled out of the ground) can be high, as it is now (a glut), putting downward pressure on prices, but gasoline distillation from that oil is a separate process and if that is reduced for some reason, gas prices can actually rise while oil prices fall, though the two generally coincide. Remember also that gasoline is not the only thing made from oil. Most plastics and many other products are derived from oil.
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