Keywords: Montana, underground storage, lease agreement, surface only, types Montana Underground Storage Lease and Agreement (Surface Only) refers to a legal contract that allows the leasing of underground storage facilities located solely on the surface of properties in Montana. This agreement is relevant for individuals, companies, or organizations requiring secure storage for various underground purposes. 1. Types of Montana Underground Storage Lease and Agreement (Surface Only): a) Natural Gas Storage Lease: This type of agreement is specific to the storage of natural gas in underground reservoirs. Lessees can utilize the surface area to build and maintain the required infrastructure for the safe storage and retrieval of natural gas. b) Petroleum and Oil Storage Lease: This particular lease agreement is designed for storing petroleum and oil-based products beneath the surface. It permits lessees to construct storage tanks, pipelines, and associated facilities on the surface to facilitate the storage and distribution of petroleum-based resources. c) Propane Storage Lease: Considered a subtype of natural gas storage, propane storage leases cater to commercial entities or individuals requiring underground storage facilities for propane gas. Such agreements grant permission to build necessary infrastructure on the surface, ensuring efficient storage and retrieval of propane. d) Chemical Storage Lease: This agreement encompasses storage of hazardous or non-hazardous chemicals beneath the surface. It allows lessees to construct surface-based structures, tanks, or containers suitable for the safe and compliant storage of chemicals. e) Underground Water Storage Lease: This type of lease agreement permits individuals or organizations to utilize underground reservoirs for water storage purposes. It enables lessees to create surface-based infrastructure like wells, pumps, and pipelines for the extraction and storage of water. In each of these lease agreements, the surface-only aspect signifies that all activities related to storage, maintenance, and access occur solely above ground level. The lessee's rights are typically limited to the surface area required for constructing facilities related to underground storage, while the ownership of the underground storage area itself remains with the lessor. Montana Underground Storage Lease and Agreement (Surface Only) provides a legally binding framework that protects the rights and responsibilities of both lessors and lessees. It ensures that underground storage activities are carried out safely, efficiently, and in compliance with relevant environmental regulations and industry standards.