USGS Assessment Of The Wolfcamp Formation, Midland Basin, Permian Province, 2016

The abstract from the USGS:

The U.S. Geological Survey completed a geology-based assessment of undiscovered, technically recoverable continuous petroleum resources in the Wolfcamp shale in the Midland Basin part of the Permian Basin Province of west Texas.

This is the first U.S. Geological Survey evaluation of continuous resources in the Wolfcamp shale in the Midland Basin.

Since the 1980s, the Wolfcamp shale in the Midland Basin has been part of the “Wolfberry” play. This play has traditionally been developed using vertical wells that are completed and stimulated in multiple productive stratigraphic intervals that include the Wolfcamp shale and overlying Spraberry Formation.

Since the shift to horizontal wells targeting the organic-rich shale of the Wolfcamp, more than 3,000 horizontal wells have been drilled and completed in the Midland Basin Wolfcamp section.

The U.S. Geological Survey assessed technically recoverable mean resources of 20 billion barrels of oil and 16 trillion cubic feet of associated gas in the Wolfcamp shale in the Midland Basin.

So, note: this is the Wolfcamp shale in the Midland Basin. The Wolfcamp underlies the entire Permian, all three divisions of the Permian -- the Midland (east), Central Basin, and the Delaware (west).

I am not yet aware of a recent USGS assessment of the Wolfcamp in the Delaware.

Other than the Wolfcamp and the Spraberry I am not aware of a recent USGS assessment of other formations or plays in the Permian.

The USGS recently posted its assessment of the Eagle Ford in Texas.

The USGS is currently assessing the Bakken/Three Forks in the Williston Basin, which will update the 2013 assessment.