Tex. Civ. Prac. & Rem. Code § 15.095

A suit against a railroad company, a canal company, or the owners of a line of transportation vehicles for injury to a person or property on the railroad, canal, or line of vehicles or for liability as a carrier may be brought in a precinct through which that railroad, canal, or line of vehicles passes or in a precinct in which the route of that railroad, canal, or vehicle begins or ends.