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1995 National Oil and Gas Assessment and Onshore Federal Lands
Donald L. Gautier, Gordon L. Dolton and Emil D. Attanasi

U. S. Geological Survey Open-File Report 95-75-N
January 1998

This Report is preliminary and has not been reviewed for conformity to U.S. Geological Survey editorial standards and stratigraphic nomenclature.  Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government.


  1. Summary
  2. Introduction
  3. Resources Assessed
  4. Methods of Assessment
    1. Geologic assessment methods
    2. Economic assessment methods
  5. Data
    1. Data sources for assessment of onshore Federal Lands
    2. Distribution of Federal Lands
  6. Federal Onshore Oil and Gas Resources
    1. Technically recoverable oil and gas resources
    2. Economically recoverable oil and gas resources
  7. Conclusions
  8. Regional and Province Geologists
  9. References
  10. Appendix A. Tables of province names and regions, estimates of technially recoverable and economic resources in undiscovered conventional fields, continuous-type accumulations, and coalbed gas accumulations
  11. Appendix B. Tables showing play names, codes, and percentages of play resources allocated to onshore Federal Lands
  12. Appendix C. Economic assumptions for preparing incremental cost functions




[For this assessment, 6,000 cubic feet of gas equals 1 barrel of oil equivalent (BOE)]

multiply unit by to obtain metric unit
barrel 0.159 cubic meter
cubic foot 0.02832 cubic meter
foot 0.3048 meter


BBO Billions of barrels of oil BCFG Billions cubic feet gas
BBL Billions of barrels TCFG Trillions cubic feet gas
MMBO Millions of Barrels of oil mcf Thousands of cubic feet
MMBOE Millions of barrels of oil equivalent bbl Barrels



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