Tex. Nat. Res. Code § 152.064

If all or part of the standing trees are owned by someone other than the landowner, either by a present right or by a future right under the terms of a valid existing contract, the landowner shall notify the service of that fact and furnish the name and address of each forest owner not later than the 10th day after the date the landowner receives notice from the service under Section 152.014 or 152.018.