Oil may not grow on trees, but pitch does.
Do a google of 'pine pitch'.
Thanks, thats interesting to learn of.
I didnt know what.
"No need to paint Noah's Ark black - the pitch was probably extracted from pine trees (which might be "gopher wood" anyway). Perfectly water proof, gum based pitch melts easily, has a faint pine odor, looks like a thick varnish, washes up with alcohol and remains flexible. It can be used as both a coating and an adhesive. It could be applied either with heat or by dilution with alcohol. Manufacture is simple. Surely this is the perfect material, even by today's standards."
Check this link out that I found on the search:
This must be the same stuff I see oozing from my japanese pine.