Contents

1. EIA Coal Reserves Data

• The Demonstrated Reserve Base
• Coal Resource Data Framework
• Recent Developments

2. New Coal Resource and Reserve Data in Illinois

• Overview
• Study Area
• Methodology and Criteria
• Coal Accessibility Adjustments
• Recovery Rates

3. 1997 Demonstrated Reserve Base and Estimated Recoverable Reserves

• Demonstrated Reserve Base
• Estimated Recoverable Reserves
• Status of Coal Reserves Data Base

Acronyms and Abbreviations Used

Glossary of Selected Coal Classification Terms

Appendix A. Detailed Estimates of Demonstrated Reserve Base and Estimated Recoverable Reserves for U.S. Coal by Heat and Sulfur Content

• A1. Estimates of the Demonstrated Reserve Base of Coal by Btu/Sulfur Range, State, and Type of Mining
  
• A2. Estimated Recoverable Reserves of Coal by Btu/Sulfur Range, State, and Type of Mining

Tables

1. Estimates of the Demonstrated Reserve Base and Estimated Recoverable Reserves of Bituminous Coal in Illinois by Btu/Sulfur Range and Type of Mining

2. Reliability Classifications for Coal Resources in Illinois

3. Categories of Coal Seam Thickness in Illinois

4. Categories of Overburden Thickness

5. Factors Considered and Applied in Illinois to Estimate the Accessible Reserve Base

6. Demonstrated Reserve Base of Coal in the United States, 1995, 1997

7. Demonstrated Reserve Base of Coal by State and Rank, 1995, 1997

8. Demonstrated Reserve Base of Coal by State and Potential Method of Mining, 1995, 1997

9. Demonstrated Reserve Base of Coal by State and Rank, Potentially Minable by Underground Methods, 1995, 1997

10. Demonstrated Reserve Base of Coal by State and Rank, Potentially Minable by Surface Methods, 1995, 1997

11. EIA Sulfur Content Categories for Coal

12. Demonstrated Reserve Base of Coal in the United States by Sulfur Range and Coal-Producing Region

13. Net Accessibility and Recovery Factors for Coal Resources, by Coal-Producing Region

14. Estimated Recoverable Reserves of Coal in the United States by Sulfur Range and Major Region

15. Status of 1997 Database Updates for Energy Information Administration (EIA) Coal Resource and Reserved Data

A1. Estimates of the Demonstrated Reserve Base of Coal by Btu/Sulfur Range, State, and Type of Mining

A2. Estimated Recoverable Reserves of Coal by Btu/Sulfur Range, State, and Type of Mining

Figures

1. Coal-Bearing Areas of the United States

2. Delineation of U.S. Coal Resources and Reserves

3. Coal-Bearing Areas of Illinois

Databases

The Coal Reserves Database (CRDB) for 1997

Contact:

Mr. Richard Bonskowski

richard.bonskowski@eia.doe.gov

Phone: (202) 287-1725