We left Richardson, TX @ 9am and since I had over 3/4 tank of gas we didn’t stop to top off. Prices in the neighborhood were running $2.57.
An hour up US Hwy 75 the gas prices were down to $2.55 but when we crossed the Red River into Oklahoma they jumped dramatically to $2.65. For the rest of the time we were in Oklahoma it was pretty much between $2.65 to $2.67 with 2 exceptions. Across the street from the first Choctaw Casino/Resort after entering Oklahoma, gas prices were $2.69. The second was in a small town call Chouteau, it was $2.49. We stopped at one of the two gas stations (a Shell) to get drinks and I asked the cashier about their prices. He had no idea. He said that yesterday they were at $2.55 and they were told to drop their prices this morning.
Passing into Missouri (near Joplin) the prices dropped immediately ($2.54). That is what it is here in Independence. Made it in about 9 1/2 hours (with a one hour lunch break & a 5 minute drink stop).
I’ll top of tomorrow and see what happens when we drive back on Tuesday.