My dad and uncle had joint ownership of their dad’s farm. My dad purchased my uncle’s half of the farm, but my uncle retained his mineral rights for 20 years. Those 20 years end December 31, 2017. He has since died and his son has inherited those minerals. Can his son legally enter into a 3-year lease, since he will only own the minerals a bit over a year? If so, will he be entitled to the entire half of any such lease?