The two gas station brands mentioned in the crossword solutions are ARCO and SUNOCO. ARCO is a brand of gasoline and convenience stores owned by the British-Dutch company BP. It is primarily located in the western United States, with some locations in the Midwest and Southeast. SUNOCO is an American petroleum and petrochemical manufacturer based in Philadelphia, Pennsylvania. It operates more than 4, 900 retail outlets in the United States, including gas stations, convenience stores, and truck stops.