Petroleum related wells in Montana, North Dakota, and South Dakota

The the Williston Basin has been a leading petroleum producer for over a half century with development beginning around the turn of the 20th century. The spatial and temporal spread of the associated wells is important from both an economic perspective but also a natural resource view. These data were gathered from the state/province oil and gas divisions for use by USGS researchers and their collaborators in water resource specific studies. Each state/province provides slightly different information for each well, with some providing more information and others less. We attempted to create a spatial cross-walk that allowed each database to be merged to one another to create a final regional spatial database. Each well attribute contains information on the well type, SPUD date, name, operator and unique ID. In addition some of the wells have information on the producing field and bottom hole location.