(a) A lease executed and delivered in compliance with this subchapter is valid and binding on the property or interest in property owned by the estate and covered by the lease for the full term provided by the lease, subject only to the lease's terms and conditions, even if the primary term extends beyond the date the estate is closed in accordance with law.
(b) The authorized primary term of the lease may not exceed five years, subject to the lease terms and provisions extending the lease beyond the primary term by:
(1) paying production;
(2) bona fide drilling or reworking operations, whether in or on the same well or wells or an additional well or wells, without a cessation of operations of more than 60 consecutive days before production has been restored or obtained; or
(3) a shut-in gas well.