Pretty common every year. It when you can expect it to raise.Why the 10 to 15 cent jump right before Memorial Day? Sudden shortage?
Normally this is the trend but like @Davidc said above, the times are changing.I think they took some out of the stockpile a bit ago. Expect gas prices to rise a bit as some of that surplus gets drained during the summer months.
It really depends on if the Saudis live up to their production cuts. Since the US has been pumping like mad and don't show signs of slowing down.