I haven't checked recently, but I thought that BP Ultimate contained no ethanol. Their website mentions the following
"BP ULTIMATE OCTANE 98 minimum BP Ultimate is the highest octane retail fuel that BP has on the market. It has an octane rating between 98 and 100 and does not contain ethanol."
The octane mentioned confuses me because I thought that Ultimate here in the Chicago area was 92 octane. I'd recommend checking that the pump. They have stickers listing the octane and ethanol content. Good luck