Good question. I see OPEC cut production again and while I keep hearing we are a net exporter (of crude) now, for some reason, OPEC is still the driving force concerning pump prices. I really think refiners use that as a tool to gouge consumers more than anything else.
It's a 'gotta have it' commodity so if it costs a dollar per gallon (good thing) or 5 bucks a gallon (not a good thing), you'll buy it anyway because you have to have it.
I'm always looking for ways to beat the price. My wife and I have Kroger cards and shop at Kroger. I got my Kroger World Mastercard not to long ago on a promotion that I'd receive at least 25 cents off per gallon (for a year, no limit) when I used it, providing I bought at least 100 bucks a month in groceries which I (we) do anyway, out cards are linked, my wife and mine and last time I got gas, I saved the 25 cents plus an additional 30 cents so 55 cents off the advertised pump price and I filled the Suburban and my car and Amy's buggy. That is a helluva savings anyway you cut it on a 'gotta have it' commodity. Interestingly, the Kroger gas station is usually a couple cents less (advertised price) than the other filling stations close by.
So, I have to have it but if I can get it cheaper, I do. It's all weasel pee anyway. Good gasoline went by-bye with unleaded years ago.