Texas Education Code - EDUC § 109.160. Exploratory Term of Lease;  Extension;  Other Provisions

(a) The exploratory term of a lease as determined by the board prior to the promulgation of the advertisement shall not exceed five years, and each lease shall provide that the lease will terminate at the expiration of its exploratory term unless by unanimous vote of the board the lease is extended for a period not to exceed three years.

(b) If oil, gas, sulphur, or other minerals are being produced in paying quantities from the premises, the lease shall continue in force and effect as long as the oil, gas, sulphur, or other minerals are being so produced.  No extension may be made by the board until the last 30 days of the original term of the lease.

(c) The lease shall include additional provisions and regulations prescribed by the board to preserve the interest of the state, not inconsistent with the provisions of this subchapter.