Greetings Leslie:
Blackjack oak (Quercus marilandica) is not generally considered a high-value, commercial oak species. The main value in blackjack oak would be for wildlife value, aesthetics, general habitat, etc. I believe $100/inch is way too high -- if in fact you are relating that value to "timber" and not as an ornamental or landscape tree.
As always, I strongly suggest you contact a local, trained professional consulting forester for an on-site appraisal if you want to receive a fair market assessment for your timber. Local markets tend to dominate in areas with lower-grade wood species (e.g., blackjack oak).
OK Consulting Foresters:
http://www.forestry.ok.gov/Websites/forestry/Images/CONSULTING%20FORESTERS.pdf
Best of luck!