Enable Mississippi River Transmission, LLC (MRT) is a medium-sized pipeline company with a network extending 1,600 miles from Texas to Illinois. Owned by Enable Midstream Partners, LP (Energy Transfer Partners, LP) and operated by Enable Mississippi River Transmission, LLC, MRT operates at around 50% utilization. The company's Main Line System comprises three high-pressure pipelines originating at Perryville, Louisiana, and extending through Arkansas and Missouri to termination points at MRT’s Columbia and Meramec Measuring Stations near St. Louis, Missouri. Additionally, MRT’s West Line extends from Harrison County, Texas to Perryville, Louisiana, where it connects with MRT’s Main Line system. The system also includes the Fountain Hill Line, linking MRT’s Unionville Storage Facilities to the Main Line System, and the East Line, a trunk line extending into the greater St. Louis area from Clay County in Southeastern Illinois. MRT’s infrastructure features various interconnects for gas receipt from producing fields and delivery by other pipelines. Its storage facilities include the East and West Unionville Storage Fields in Lincoln Parish, Louisiana, and the St. Jacob Storage Field in Madison County, Illinois. MRT primarily serves the midstream, utility/power sectors, with key customers including Spire Missouri Inc., Ameren Illinois Company, and Enable Gas Transmission.