Does the database use only the play definitions developed by Nehring Associates?
No; it also includes play definitions from the U.S. Government (USG) and the Gas Research Institute. The Significant Oil and Gas Fields of the United States Database was the first publicly available source of nationwide play definitions. However, because we recognize the value of different perspectives on play definition, we have also incorporated the play definitions of the U.S. Government (USG) and the Gas Research Institute into the database. For further information, see The Database: Organization by Play.
