Chevron is a "Top Tier" gasoline.
Top Tier requirements mean that any station that has the brand name sign (in this case Chevron) in any part of the USA, company owned or privately owned. Meets the standard in ALL grades of gasoline.
Does it have ethanol?, as stated, depends upon what part of the country. Many areas are required to have the ethanol blend in all brands of gasoline sold.
Only way to avoid getting the ethanol blended fuel is to drive out of the "EPA Oxygenated fuel requirement" area.