Probably won't find one better than Fox's
http://www.foxproducts.com/pdfs/LetsPlay…
but like the other respondent said, go to a music shop and get an oboe primer that has both music exercises and a fingering chart.
Here are some others:
http://www.lee.k12.fl.us/schools/com/ban…
http://www.wfg.woodwind.org/oboe/


