Any gas credit card offered by a major bank will let you earn rewards every time you use your cad. There are no minimum spendings or limitations on where you can earn the rewards. Every dollar charged to the rewards credit card will earn points or cash back. The only minimum spending that may be required is when you are offered a sign up bonus in addition to regular rewards. In this case you will need to spend a certain amount of money during certain period of time.
Disclaimer: This editorial content is not provided or commissioned by the credit card issuer(s). Opinions expressed here are the author's alone, not those of the credit card issuer(s), and have not been reviewed, approved or otherwise endorsed by the credit card issuer(s). Reasonable efforts are made to present accurate information, however all information is presented without warranty. Consult a card's issuing bank for the terms & conditions.
All rates and fees, and other terms and conditions of the products mentioned in this article/post are actual as of the last update date but are subject to change. See the current products' Terms & Conditions on the issuing banks' websites.