How to remove a stuck wiring Snake?

I've managed to get a Snake stuck in ribbed conduit. I managed to get about 15 feet of the snake in the tube before it stopped advancing and now I can't get it out.

How can I remove it without damaging anything?

Picture of Snake, wire, and blue ribbed conduit


Without sacrificing the existing wiring in the line there's very little you can do here that doesn't risk damaging what's in the conduit. Best suggestion I have is to twist the snake 1/4 turn left and right while working it back and forth to see if it will break free. You can also try Dyna-Blue or something similar, but that's best applied before trying the pull...

On occasions like this it is sometimes better to cut the snake and declare it a loss rather than risk destroying the existing wires and having a real repair project on your hands.