Tioga Gas Plant

The Tioga Gas Plant is one of the largest natural gas processing and fractionation facilities in North Dakota. It receives natural gas produced from Hess-operated and third-party operated wells in the Bakken through its Hess and third-party gathering systems. 

In 2021, we completed an expansion of the Tioga Gas Plant which added 150,000 Mcf per day of capacity to the plant, bringing overall plant capacity to 400,000 Mcf per day. The expansion adds residue and y-grade liquids processing capacity to the existing full fractionation and ethane extraction capability of the current plant.

The Tioga Gas Plant has a multitude of residue gas and NGL export options. For residue gas, the plant has total export capacity of more than 250 MMcf/d of residue gas, and for ethane TGP can recover and ship up to 30 MBbl/d of ethane to Canada. Other fractionated products such as propane, butane and natural gasoline can be shipped via truck or rail to local and regional markets. Y-grade liquids are shipped on the Elk Creek Pipeline.

The plant also includes NGL truck loading racks with an aggregate loading capacity of approximately 10,000 barrels per day of propane to serve the local market, and tanks to store approximately 35,000 barrels of propane, 10,000 barrels of butane and 35,000 barrels of natural gasoline.

A Compressed Natural Gas (CNG) terminal is capable of compressing approximately 5,600 Mcf per day of natural gas and loading more than 100 light-duty CNG-fueled vehicles and up to 32 CNG cylinder trailers per day for Hess’ drilling and hydraulic fracturing operations, for a combined capacity of approximately 40 Mdge/d.

Little Missouri Four Plant (“LM4”)

The LM4 Plant is a 200,000 Mcf gross per day gas processing plant located South of the Missouri River. The plant is owned within a 50/50 joint venture with Targa Resources Corp. (Targa). Targa operates LM4 and Hess Midstream owns 100,000 Mcf net per day of the Plant’s processing capacity. The plant also has direct residue gas and NGL pipeline connections at the tailgate of the plant, with export capacity of approximately 135 MMcf/d of natural gas to the Northern Border Interstate Pipeline and 40 MBbl/d of NGLs to ONEOK Elk Creek Pipeline.

Mentor Storage Terminal

Hess Midstream operates an underground propane storage cavern and a rail and truck loading and unloading facility on 40 acres in Mentor, Minnesota.

Approximately 330,000 barrels of propane can be stored on site to mitigate the impact on operations on seasonal variation in demand. The terminal also has a dehydration facility, and rail and truck loading racks capable of injecting and withdrawing 6,000 barrels of propane per day. The propane is sold regionally or exported by interstate rail.