Sort of like at my local Fleet/Farm type store where I do a majority of my shopping for supplies, etc.
Mobil 1 (most all varieties) regular non-sale price is $6.99/qt. Gallons are $29.99. Not 5 qt jugs, gallons. And when it goes on sale, it's on qts only. But you can buy it by the 6 qt case size.
Thankfully twice a year Mobil runs their $15 rebate/5 qts. which makes it a good buy.