In 1976 the Northern Rockies experienced a 22% decline in drilling compared to 1975. All states suffered except North Dakota and South Dakota. North Dakota had an increase of 9.4% in total drilling; South Dakota had an increase of 14.2% in total drilling. A new and significant area in western Wyoming, the overthrust belt, had a 50% wildcat success rate. The exploration of Cretaceous stratigraphic sandstones in the Powder River Basin continues strongly. At the end of the year, activity in general was on the upswing, but there was not enough time to compensate for the doldrums of the summer when drilling decreased partly because of unfortunate government policies in the areas of price and environment.

First Page Preview

First page PDF preview
You do not have access to this content, please speak to your institutional administrator if you feel you should have access.