Ticaboo resort has premium and ethanol free. Not sure what "offShore" which is now owned by Ticaboo has. Halls has 91 octane, Bullfrog does not. Halls fuel dock has more limited hours than Bullfrog.
Coming from Denver we try to avoid hauling 40 gallons over the passes, but generally fuel up in Green River as we know it's cheaper than the Ticaboo/Offshore, not sure if hauling from Green River offsets the price difference with Ticaboo/OffShore