Central Region Energy Resources Team

1995 National Assessment of United States Oil and Gas Resources:
Results, Methodology, and Supporting Data

CD-ROM GIFDigital Data Series 30

These CD-ROM products were published in support of the 1995 USGS National Assessment of United States Oil and Gas Resources and contain data and information summarizing the results of a 3-year study of the oil and gas resources for onshore and State waters in the United States. The study describes 560 oil and gas plays in the United States—confirmed and hypothetical, conventional and unconventional.

Portions of the original CD-ROMs no longer function on modern computing platforms and have been archived. While these CD-ROM’s are still available and can be obtained by emailing Energy Team CD Distribution (, portions of these data and information have been re-engineered and are currently available online at the Energy Resources Program website. In addition to the 1995 products, new and revised oil and gas resource assessments have been conducted throughout the United States using more comprehensive total petroleum system (TPS) methodologies. Links to these information assets are provided below.

See the website, National Oil and Gas Assessment (NOGA Online) for detailed information, maps and data from DDS-30, DDS-35 and DDS-36.

U.S. Geological Survey
Denver Federal Center
P.O. Box 25046, MS 939
Denver, CO 80225-0046

Contact: Energy Team CD Distribution(
Telephone: (303) 236-1644

Number of discs: 1
Price: No charge

U.S. Geological Survey
Denver Federal Center
P.O. Box 25046, MS 939
Denver, CO 80225-0046

Format: ISO 9660
Operating system: DOS: Windows 3.1 or higher; Macintosh: System 7 or higher
Memory: DOS: 4 MB; Macintosh: 8 MB
Video requirements: SVGA
Software: The contents of this CD-ROM consist of the Macintosh and MS-Windows versions of the program entitled 95assess.mac and 95assess.exe respectively. The remainder of the files in the main directory are subroutine modules, or movies, shared by the two programs and contain images of the text, graphs, maps, and code. Although all data and software on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials.

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