ACKNOWLEDGEMENTS SECTION I SUPPLY AND DEMAND This study was prepared by and under the direction of Radford L. Schantz. W. Gibson Jaworek contribu all parts of the study, but especially to Chapter C. Principal staff analysts assisting in the preparation of the were John Freitag, Thomas E. Browne, Sara Lepman, Louise Waldruff, and Ellen Brown. J. Rhoads reviewed the report and made many helpful suggestions. Foster Economic Consultants, Ltd., of Calgary, Alberta, Canada, prepared a special study on petroleu natural gas supplies in Canada. Arthur D. Little, Inc., of Cambridge, Mass., prepared a special study of liq natural gas. Assistance was also provided by two independent consultants who are affiliated with Associates: David N. McClanahan, Houston, Tex., assisted in all parts of the study, but especially with reg natural gas liquids; Clarke B. Gillespie, Fort Worth, Tex., provided a special study on nuclear stimulation. Acknowledgement is also given to a number of people in both government and industry who provided va assistance in data gathering and in the review of preliminary drafts of the report. SECTION II THE COST OF FINDING AND PRODUCING HYDROCARBON SUPPLIES This study was written and directed by Dr. Stephen F. Sherwin with the assistance of Sara L. Lepma prepared the statistical appendix. Clarke B. Gillespie provided the reservoir depletion curves and assisted collection of cost data for offshore operations. Mary J. Klipple performed the research on of transportation costs, and Evelynne Gordon assisted in the assembly of data on time lag. Dr. J. Rhoads Fost Celia Star Gody provided many helpful suggestions in their review of the study. Acknowledgement is also given to the cooperation of the Louisiana State Geological Survey; the Geol Survey, U.S. Department of the Interior: and the many offshore drilling operators in providing access to dat A. Projected Reserve Additions from 1968 to 1975 ... C. Factors Affecting Minimum Gas Inventories in The United States D. Factors Which Could Affect the Terminal Year of the First Phase 902 234 .... Chart- Trend in Reserve-To-Production Ratio and New Supply-To-Production Ratio for Natural Gas, 1947-1967 Chart- Trend in Gas Well Drilling, 1947-1967 Table- New Field and New Reservoir Discoveries in Relation to Total Additions to Natural Gas Reserves Table- Estimated Sources of Natural Gas to Meet Projected Table- Estimated New Supplies of Indigenous Natural Gas Projected to |