Mo. Rev. Stat. § 537.380

Each railroad corporation owning or operating a railroad in this state shall be responsible in damages to every person and corporation whose property may be injured or destroyed by fire communicated directly or indirectly by locomotive engines in use upon the railroad owned or operated by such railroad corporation, and each such railroad corporation shall have an insurable interest in the property upon the route of the railroad owned or operated by it, and may procure insurance thereon in its own behalf for its protection against such damages.