What type of structure was the williston basin?
intracratonic sedimentary basin
The Williston Basin is a large intracratonic sedimentary basin in eastern Montana, western North Dakota, South Dakota, and southern Saskatchewan, that is known for its rich deposits of petroleum and potash.
How did the Williston Basin form?
It extended north into Saskatchewan and Alberta and south into South Dakota. Below the surface, many formations were laid down by millions of years of geological events. Over time, pressure converted the organic materials in the formations into oil and natural gas. The Williston Basin is not visible on the surface.
How thick is the Bakken Formation?
The lower black-shale member reaches a maximum thickness of about 45 ft (14 m), compared to 20 ft (6 m) for the upper black-shale member, but is smaller in areal extent (maps D and E).
How deep is the Williston Basin?
The Williston basin covers parts of Montana, North Dakota, South Dakota, and Canada. It is a large intracratonic basin where sedimentation occurred throughout much of the Phanerozoic period and is 15,128 ft thick at its deepest known point according to a well located in McKenzie County in Western North Dakota.
How much oil is in Williston Basin?
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean oil and gas resources of 134 million barrels of oil and 81 billion cubic feet of gas in upper Paleozoic strata of the Williston Basin Province in North Dakota, Montana, and South Dakota.
How deep is the Bakken oil?
The depth to the top of the Bakken can vary from a few thousand feet in Canada to more than 10,000 feet in the deeper areas in North Dakota. In terms of geologic age, it was deposited during the upper Devonian and Lower Mississippian periods about 360 million years ago.
Why is Michigan a basin?
The Michigan Basin contains sedimentary rocks that were deposited in a circular depression that formed in Earth’s crust during Paleozoic time, between about 544 and 286 million years ago. During most of this period, Michigan was flooded by the sea.
Who owns the Bakken oil fields?
Oct 7 (Reuters) – Dallas Cowboys owner Jerry Jones’ Comstock Resources (CRK. N) on Thursday agreed to sell its assets in North Dakota’s Bakken basin to Northern Oil and Gas for $154 million, as it looks to shore up capital.
How much oil is left in the Bakken?
4.3 billion barrels
The USGS estimates that there may be 1.3 to 7.3 billion barrels of undiscovered, technically recoverable oil in the Bakken Formation (with a mean estimate of 4.3 billion barrels).
How far down is bedrock in Michigan?
around 4,000 feet
Around the margins, such as under Mackinaw City, Michigan, the Precambrian surface is around 4,000 feet (1,200 m) below the surface. This 4,000-foot (1,200 m) contour on the bedrock clips the northern part of the Lower Peninsula and continues under Lake Michigan along the west.