Dan Hampton describes in his book Viper Pilot exactly this situation. His wingman towed in a tanker into enemy territory in Iraq to have him refuel. He wouldn’t have made it back without the gas. BTW great read/listen (there is an audio book available). But I doubt its something that is done regulary.
Agreed on Viper Pilot,Lukrop.
BTW, In the described tanker incident, the FEBA had also moved quite a bit north into Iraq.