SoftVest Advisors, LLC → PERMIAN BASIN ROYALTY TRUST PBT

Item 4 of the Original Schedule 13D is amended by adding the following: On December 26, 2025, SoftVest, LP, as beneficiary of the Trust, filed an Original Petition for Modification of Trust (the "Original Petition") in the District Court of Tarrant County, Texas, seeking to effect the Indenture Reformation. The case (096-373245-25) has been assigned to the 96th District Court of Tarrant County. The foregoing is qualified in its entirety by reference to the full text of the Original Petition, a copy of which is attached as Exhibit 4 and incorporated by reference herein.