 DALLAS, July 20, 2021 PRNewswire -- Simmons Bank, as Trustee of the Permian Basin Royalty Trust NYSE: PBT Permian today declared a cash distribution to the holders of its units of beneficial interest of 0.021355 per unit, payable on August 13, 2021, to unit holders of record on July 30, 2021. This months distribution increased from the previous month as the result of increased production of oil offset by a decrease in gas production for the Texas Royalty Properties. 