I've been doing research for several years, but I just started on this side of the family!
The best source of info that I've found is the GENFORUM web site. Check out the OYLER surname page (OYLER is the original spelling of the name...just one of the tidbits I've picked up)!
I found a distant cousin there...I have a GEDCOM file that I just received from them. I'd be happy to forward you a copy...it has Oylers back to Virgina in early 1800s.
I was also able to learn alot from James Johnson who also posts in this forum.
Hopefully this helps...I look forward to sharing info with you!