Thunder Bay Flight Refueling (Esso Avitat) @ Thunder Bay Airport

I have stopped there three times. Great, quick, and friendly service at reasonable prices.

I second the comments from @douglasr - the Esso Avitat (Thunder Bay Flight Refueling) has big-airport service without the big-airport fees (compare the Esso Avitat at CYUL or CYOW to see what I'm talking about): no ramp fee, no handling fee, no parking fee.

Ryan, who was on duty, was very friendly and professional: he even booked a hotel for me downtown and arranged for them to pick me up in their shuttle, so that I wouldn't have to pay for a taxi.

Support for general aviation at Thunder Bay is awesome. I stopped there both on the way out east (from Calgary) and on the way back. I used the Esso Avitat for both stops and was very pleased with the service. On the way out, Esso refueled us immediately and loaned us their van to go get coffee from Tim Hortons. On the return flight, we arrived late in the day but still received quick service plus the fueler arranged for a hotel room at the Victoria Inn (a good recommendation) and a shuttle to get us there. Parking overnight was free of charge and there was fresh coffee the next morning. The lounge was clean and comfy and had a NavCanada pilot kiosk.