(a) An agreement executed under this subchapter may include the following provisions:
(1) that operations incident to drilling a well on any portion of a unit shall be considered for all purposes to be conduct of the operations on each tract in the unit;
(2) that production allocated by the agreement to each tract included in the unit shall be considered for all purposes to have been production from the tract;
(3) that the interest reserved to or provided for the state or any of its funds on production from any tract included in the unit shall be paid only on that portion of the production from the unit that is allocated to the tract under the agreement; and
(4) that each lease included in the unit shall remain in effect so long as the agreement remains in effect and that on termination of the agreement each lease shall continue in effect under the terms and conditions of the lease.
(b) The agreement may include any other terms and conditions the commissioner or any board, official, agent, agency, or authority of the state that has the authority to lease or to approve a lease of the land for sulphur may consider to be in the best interest of the state.