Listen to clemsonfor, and Gourdon Gould.
As a former logger, I can tell you that anyone that is familiar with the area can take a 'drive by' and decide if the timber is worth harvesting professionaly. I went on several trips when I was logging, and my boss would say......centers are rotted, without ever slowing down.
You have timber that is not desireable. I hate to tell you that, but such is the case. Your local loggers/foresters, know much more about your area than anyone here on TBN.
You can check with 'pulpwood places', but most only accept logs up to 14 inches.
If you can use the wood for your own use............firewood or boards..........that's your best bet..........or just sell it for firewood.
Yellow white oak isn't going to bring much revenue.
What I did on my property was, I cut the trees, I cut them to length in the woods(most trees were cut 8 ft' from the butt end, (leave extra as elplained earlier), and then I pulled them out with my F250, and an old truck hood.. Mine were sold, already cut and skidded..........they just picked 'em up.
Look at your first cut, if there is one blemish, cut it to 8 foot, if no blemishes.....go out to 10 ft. Here it gets tricky, ya gotta figure your log dimension at the butt, and the log dimension at the cut...........one can lose a lot of board feet in a hurry if the tree necks down too fast.
White oak has a tendency to have a large butt............then neck down drastically after 8 to 10 feet. If you have a 40 inch butt, but you are at 28 inches at ten feet, but 35 inches at 8 feet.................you get the drift.