Great Northern Gathering & Marketing LLC (GNGM) gathers and transports crude oil in the Williston Basin of North Dakota and the Powder River Basin of Wyoming. GNGM also provides crude oil transportation service through leased capacity on the BakkenLink Pipeline.

Local Pipeline Tariffs
F.E.R.C. 1.0.0 Great Northern Gathering & Marketing Rules and Regulations effective January 1, 2014
F.E.R.C. 2.2.0 Great Northern Gathering & Marketing LLC Proportional Tariff effective July 1, 2015