The last time I went that route I fueled in Isabella - Tower - Lake Vermillion had about 6 inches of water on it and it was 40 degrees so I had to refuel again in Cook. Orr is in between Cook and I Falls so you could get gas there if you had to. I had my Yammi so I got from Cook to I Falls in good shape gas wise. I Falls is a decent sized town with plenty of gas stations. It is not a speed run. Lots of twists and turns. It takes time. Not a lot of traffic. Saw a few Bald Eagles.