Yes. These aren't through the existing banks. It's not hinged on whether or not you have a contract. If you purchase your inputs and get a crop production loan from company A, you have to sell your product back to company A.
On the livestock side of things, let's face it, this industry is extremely volatile and extremely risky, and profits have been virtually zero since 2003. The bank isn't going to borrow feedlot money to go and buy cattle, or very seldom. Those producers who buy their feeder cattle go to a dealer-financed program where they have to buy the feeder cattle. Often they are marked up, and then they have to sell them back to that same producer, whether they have a contract or not.