Citi Driver's Edge: 3% Gas, Supermarket, Drugstore. Doubled to 6% for the first 12 months.
Discover Open Road: 5% on Auto Related, but only on first $100 per month.
Citi Platinum Amex: 5% on Gas, Supermarket, Drugstore. 3% on all else. Valid for 2 years. $125 fee per year, waived for first year.