The Bison Midstream system is located in Mountrail and Burke Counties in northwestern North Dakota. Bison Midstream gathers, compresses and treats associated natural gas that exists in the crude oil stream produced from the Bakken and Three Forks shale formations. The gathering agreements for the Bison Midstream system include long-term, fee-based or percent-of-proceeds contracts. Volume throughput on the Bison Midstream system is underpinned by acreage dedications from its key customers. A large U.S. independent crude oil and natural gas company and Chord Energy Corporation are the key customers of Bison Midstream. Natural gas gathered on the Bison Midstream system is delivered to Aux Sable Midstream LLC's ("Aux Sable") Palermo Conditioning Plant in Palermo, North Dakota and then delivered to downstream pipelines serving Aux Sable's 2.1 Bcf/d natural gas processing plant in Channahon, Illinois.