Notes and Definitions Beginning with the report period for the week ending March 16, 2012, EIA is including salt dome and nonsalt-dome subtotals for the Producing Region in the Summary section. The sum of the components may not equal the total for the Producing Region, because of independent rounding.
Summary Working gas in storage was 3,374 Bcf as of Friday, August 24, 2012, according to EIA estimates. This represents a net increase of 66 Bcf from the previous week. Stocks were 429 Bcf higher than last year at this time and 361 Bcf above the 5-year average of 3,013 Bcf. In the East Region, stocks were 109 Bcf above the 5-year average following net injections of 47 Bcf. Stocks in the Producing Region were 189 Bcf above the 5-year average of 935 Bcf after a net injection of 16 Bcf. Stocks in the West Region were 63 Bcf above the 5-year average after a net addition of 3 Bcf. At 3,374 Bcf, total working gas is above the 5-year historical range. Working gas stocks in the Producing Region, for the week ending August 24, 2012, totaled 1,124 Bcf, with 227 Bcf in salt cavern facilities and 897 Bcf in nonsalt cavern facilities. Working gas stocks increased 9 Bcf in the salt cavern facilities and increased 7 Bcf in the nonsalt cavern facilities since August 17. An historical series of the salt and nonsalt subtotals of the Producing Region is available for download at