NGL Fractionation

NGL fractionation facilities separate mixed NGL streams into purity NGL products: ethane, propane, normal butane, isobutane and natural gasoline. The three primary sources of mixed NGLs fractionated in the United States are domestic natural gas processing plants, domestic crude oil refineries and imports of butane and propane mixtures. The mixed NGLs delivered from domestic natural gas processing plants and crude oil refineries to our NGL fractionation facilities are typically transported by NGL pipelines and, to a lesser extent, by railcar and truck.

Enterprise owns interests in 10 NGL fractionators with a combined net fractionation capacity of 531 MBPD. These facilities are located in Texas, Louisiana and Colorado and are linked by pipelines to some of the largest consumers of NGLs in the United States and to international markets through the partnership's import/export terminal on the Houston Ship Channel. Generally, the partnership receives a fee on the volume of NGLs fractionated.

Our Mont Belvieu NGL fractionation facility is a key hub of the domestic and international NGL industry with a gross capacity of 230 MBPD and a net capacity of 178 MBPD. This facility fractionates mixed NGLs from several major NGL supply basins in North America including the Mid-Continent, Permian, San Juan, Rocky Mountains, East Texas and the Gulf Coast.

Our Norco NGL fractionation facility, located near New Orleans, Louisiana, has a gross capacity of 75 MBPD. This facility receives mixed NGLs via pipeline from refineries and natural gas processing plants located in southern Louisiana and along the Mississippi and Alabama Gulf Coast.

The Promix fractionation facility is located in Napoleonville, Louisiana and has the capacity to fractionate up to 145 MBPD of mixed NGLs from natural gas processing plants in southern Louisiana and along the Mississippi Gulf Coast.  Enterprise and an affiliate of Dow Chemical Company each own a 50% interest in this facility.

The Hobbs NGL fractionation facility is located in Gaines County, Texas, where it serves petrochemical end users and refineries in West Texas, New Mexico and California. In addition, the Hobbs facility can supply exports to northern Mexico through existing pipeline infrastructure. The Hobbs facility receives mixed NGLs from several major supply basins including Mid-Continent, Permian Basin, San Juan Basin and the Rocky Mountains. The facility is strategically located at the interconnect of our Mid-America Pipeline System and Seminole Pipeline, providing us flexibility to supply the nation’s largest NGL hub at Mont Belvieu, Texas as well as access to the second-largest NGL hub at Conway, Kansas.

(1)The approximate net NGL fractionation capacity does not necessarily correspond to our ownership interest in each facility.  It is based on a variety of factors such as volumes processed at the facility and ownership interest in the facility.

(2) Reflects consolidated ownership of these fractionators by EPO (34%) and Duncan Energy Partners (66%).

(3) Consists of two NGL fractionation facilities located in northeast Colorado.