I did a 100+ mile run up the ICW from Harkers Island skirting the Pamlico Sound to Washington NC, a few years back. Only one place had fuel...little past half way. That was the most worrisome part of the trip...not the rain, 2-3ft seas during the last 15miles...would I be able to get fuel.
As it was...the docks are set up for sport fishers...heh...try reaching the fuel inlet when you're stretching on your gut so the hose can reach...HA!