Life Estate
An ownership interest that lasts only for the holder's lifetime; the life tenant collects royalty income but cannot sell the full interest alone.
A life estate is ownership of property, including minerals and royalties, that lasts only for the lifetime of a named person, called the life tenant. When that person dies, the interest passes automatically to whoever holds the remainder interest, the remainderman. Estate plans use it so a surviving spouse can enjoy the income for life while the children are guaranteed the asset afterward.
While alive, the life tenant generally collects the royalty and bonus income the minerals produce. What the life tenant usually cannot do alone is sell the full fee or, in many states, sign a long-term lease without the remainderman joining, because neither party owns the whole interest by themselves. Operators frequently require both signatures on a division order.
The open question is the open mines doctrine: whether the life tenant keeps production proceeds outright or must preserve principal for the remainderman. The answer varies by state and by whether wells existed when the life estate began. This is general information, not legal advice.