chain of title

Chain of title, in the oil and gas context, refers to the ordered, historical sequence of recorded conveyances, reservations, and encumbrances affecting ownership of a specific mineral or leasehold interest in real property, beginning with the original source of title, such as a sovereign grant or patent, and continuing to the present holder. In the oil and gas industry, examining the chain of title—typically through title opinions and abstracting—verifies legal ownership, identifies defects or gaps, and confirms the extent of rights (e.g., working interest, royalty interest, easements) necessary for leasing, drilling, and production operations.