Williston shunted a lot of the heavy truck traffic around town to the west, and that has freed up the highways in town considerably.
As far as storage, pipeline, tanker capacity, it grows to fill the need, and North Dakota is producing more oil than ever.
If the market was flooded, we wouldn't still be drilling. There are likely another 20 years of development drilling in the Bakken and Three Forks alone, and those are just two of the oil bearing formations in the Williston Basin.
What I have been told by a customer of mine that lives in Powers Lake, is that the traffic delays that plagued the northwest corner of the state have diminished.
He also stated there was a huge rush in 2009-2011 into the area from people looking for work. Many of these have returned to where they came from.
As far as storage, pipelines, etc. we know infrastructural improvements take time. New pipeline approval can take years.
What I mean is it appears the BOOM is over. Now what we are seeing is sustainable growth. The mad rush of a few years is over. Now ND will build motels, hotels, apartments, roads, oil shipping & storage facilities to move the products(oil & gas) out and the drilling mud, pipe, rig mats, lumber, in.