Oil paint on watercolor paper doesn't work.
Only cost me two days and $29.00 in wasted art supplies to learn this lesson.
I think gesso may be the answer. I'll soon find out.
Edit to original post: Yes, it was the gesso. That's what I needed all along. Or something else to seal the paper. I should know better. How long have I been doing this? Come to think, why am I using watercolor paper with oils anyway?
Second edit: I found the answer to the technique I'm seeking! See, I'm not crazy. There is a technique for using oils on watercolor paper.