Indiana Code Title 32. Property § 32-23-8-1

(A) the last payment of rentals on the oil and gas lease as stipulated in the lease or contract;  or

(B) operation for oil or gas has ceased, both by the nonproduction of oil or gas and the nondevelopment of the lease;  and

(A) no rentals have been paid to or received by the owner or any person, bank, or corporation in the owner's behalf for a period of one (1) year after they have become due;  and

(B) the leases and contracts have not been operated for the production of oil or gas for one (1) year.