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 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 Plant NGL throughput capacity is 80,000 barrels per day and can store approximately 80,000 barrels of natural gas liquids (NGLs) for export via three pipelines- Vantage, Alliance and Oneok- and the Tioga Rail Terminal. The plant also has direct residue gas pipeline connections at the tailgate of the plant to both the Alliance Pipeline and the WBI Pipeline. The plant features 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 total of 190,000 Mcf per day can be exported to the Alliance Pipeline, the Northern Border Interstate Pipeline, the Williston Basin Interstate Pipeline and gas lift operations in McKenzie and Williams Counties.

A Compressed Natural Gas (CNG) terminal is capable of compressing approximately 2,500 Mcf per day of natural gas and loading more than 100 light-duty CNG-fueled vehicles and up to 10 CNG cylinder trailers per day for Hess’ drilling operations.

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.

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.