Yesterday evening, DH filled up his car, paying $4.089/gal for regular.
This morning, I saw they were getting $4.149 for regular.
This evening, I saw one of the staff members changing the sign as I drove by. The new price for regular: $4.219.
So, prices were raised twice in a 24-hour period, by a total of 13 cents per gallon.
And it's not even Memorial Day weekend yet.