I need help getting old 3od copper wire that is stuck in the conduit out. I want to rewire using this conduit. I've tried soapy water, I've got farm jack right now attached to it giving it constant tension. What else can I try?

Unfortunately, this is an electricians nightmare. There is no trick other than brute force.

And then you take the chance of breaking the wire. Be sure to grip all conductors and sheathing if possible.

You can try pouring WD-40 into the conduit, give it time to seep in.

If you are able to get the wire out, the conduit will need to be cleaned out of the soap and lubricant.

I assume this is an underground conduit?