For the gasoline gift card rewards, does anybody have information on where they are accepted?

The Offer Details only state the gift cards are valid at “specified Gift Card merchants.” I wanted to find out where the cards would be accepted before making my reward selections. The response from Fandango to this question was “a list will be provided during the redemption process.” I was concerned that if I choose the gasoline gift card but then find out my desired merchants (especially Safeway and ARCO) are not included “during the redemption process,” I would not be able to go back and make a different selection.

Any information on this would be appreciated.