Years ago, I knew a litter of boxers who were raised for service dogs. They had a gas station theme for the litter. I knew Fina and Texaco, but I believe there was also a Conoco. I dont know any of the others, but they were unique, fun names! BP and Phillips 66 are two more possibilities that I can think of.
You could also pick a favorite TV show, and name the pups after the characters on the show. For example, Little House on the Prairie is on TV. There's Laura, Charles, Mary, Nellie, Nells, Harriet, Edwards, Carolyn, etc.
Puppy naming is always fun!