This report tracks U.S. natural gas inventories held in underground storage facilities. The weekly stocks generally are the volumes of working gas as of the report date. Changes in reported stock levels reflect all events affecting working gas in storage, including injections, withdrawals, and reclassifications between base and working gas. EIA also provides an estimate of the "implied flow" of working natural gas into or out of underground natural gas storage facilities that excludes reportable reclassifications-those totaling 7 billion cubic feet (Bcf) or more-from the weekly "net change" in working natural gas. Totals may not match sum of components because of independent rounding.

The complete documentation of EIA's estimation methodology is available in the report, Methodology for EIA Weekly Underground Natural Gas Storage Estimates.

Information about the method used to prepare weekly data to compute the 5-year averages, maxima, minima, and year-ago values for the weekly report can be found in Computing the 5-year Averages, Maxima, Minima, and Year-Ago Values for the Weekly Natural Gas Storage Report of the methodology report.

Regions Map

The weekly storage regions are:
East Region Connecticut, Delaware, District of Columbia, Florida, Georgia, Iowa, Illinois, Indiana, Kentucky, Massachusetts, Maryland, Maine, Michigan, Missouri, North Carolina, Nebraska, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, Wisconsin, and West Virginia
West Region Arizona, California, Colorado, Idaho, Minnesota, Montana, Nevada, North Dakota, Oregon, South Dakota, Washington, Wyoming, and Utah
Producing Region Alabama, Arkansas, Kansas, Louisiana, Mississippi, New Mexico, Oklahoma, and Texas