Potential Gas Committee reports 15 percent increase to future natural gas supplies in the United States, the highest reported level on record

The estimated future supply of natural gas in the United States has increased 15 percent since 2022, to the highest reported levels on record, according to the Potential Gas Committee’s (PGC) latest biennial assessment of the nation’s estimated natural gas resource base released this week. Eric Roberts, professor of geology and geologic engineering at Colorado School of Mines, is director of the PGC.

Future gas supply totals 4,562 trillion cubic feet for year-end 2024, an increase of 15 percent from the comparable year-end estimate in 2022. Technically recoverable resources of natural gas, those in the ground but not yet recovered, total 3,871 trillion cubic feet in 2024, according to the PGC assessment. An independent assessment of proven reserve volumes of 691 trillion cubic feet brings total future supply to the highest level assessed in the 60-year history of the PGC. 

The report, “Potential Supply of Natural Gas in the United States,” was released Sept. 23, 2025, at a Washington, D.C. event hosted by the American Gas Association. Experts from the PGC presented on the current state of technically recoverable resources in the United States, providing valuable information on a region-by-region basis. 

 The increase in gas supplies is related to:

• Increases found in over pressured Haynesville/Deep Bossier Shale in the Gulf Coast area;
• A new assessment of Alaskan gas, the first in 10 years;
• The addition of offshore resources in Alaska and Atlantic East Coast.

The PGC biennial assessment is the most comprehensive report of the potential for future natural gas supplies in the U.S. The PGC is made up of approximately 80 knowledgeable and highly experienced volunteer members who work in the natural gas exploration, production, transportation and distribution industries, as well as the technical services and consulting sectors. 

The Potential Gas Committee assesses the natural gas resource potential for 90 geologic provinces comprising six geographic areas of the Lower 48 States and Alaska, 56 of which are onshore and 34 offshore. The assessment captures the status of a dynamic system of drilling and appraisal. Potential natural gas resources transition into proven reserves and eventually into flowing natural gas production.  

How to Obtain the Potential Gas Committee Report 

Orders for the PGC’s report, Potential Supply of Natural Gas in the United States (December 31, 2024), may now be placed with the Potential Gas Agency, Colorado School of Mines, Golden, CO 80401-1887. The cost of the report is $400 (plus applicable sales tax for Colorado orders). Purchasers will receive both the printed report and a digital version (PDF file) of the document. For additional information about ordering the new and previous reports, please visit the website potentialgas.mines.edu or contact Eric Roberts at 303-273-3887 or eric.roberts@mines.edu. 

About the Potential Gas Committee 

The Potential Gas Committee (PGC) consists of about 40 knowledgeable volunteer members who work in the natural gas exploration, production, transportation and distribution industries, technical services, and consulting sectors. The PGC benefits from the input of respected technical advisors and observers within federal and state government agencies, academia, industry, and research organizations in the United States. Although the PGC functions independently, the Potential Gas Agency at Colorado School of Mines provides the Committee with guidance, technical assistance, training, administrative support, and assistance with member recruitment and outreach. The PGA receives financial support from prominent E&P companies, gas pipeline companies, distributors, trade associations, and individuals.