Ask a landlord-tenant lawyer and get answers ASAP
The ranch is my property.
The tenant has an informal unwritten agreement with me
He used to have a written agreement ending Jan 2012 when he lived here
Thank you for your response.
The statute specifically allows you to provide him with a date by which he has to come and pick up the goods or you can sell them at public auction. He can't merely pay storage fees into perpetuity. All you have to do is send the notice and give him a deadline as stated in my answer above. What the statute is saying in regard to storage fees is that he does not have a right to reclaim his property until he has paid all the storage fees due.
You are in an odd situation. Usually, a tenant will want to pick up his possessions when he is being charged storage fees by a landlord. Instead, this tenant is trying to convert the fact that he left personal property on the ranch into some kind of agreement by you to store that property forever. That is simply not supported by the law.
Send him the notice, and if he doesn't show up to claim his stuff, sell it.