Summary
Working gas in storage was 3,576 Bcf as of Friday, September 21, 2012, according to EIA estimates. This represents a net increase of 80 Bcf from the previous week. Stocks were 296 Bcf higher than last year at this time and 282 Bcf above the 5-year average of 3,294 Bcf. In the East Region, stocks were 75 Bcf above the 5-year average following net injections of 46 Bcf. Stocks in the Producing Region were 159 Bcf above the 5-year average of 994 Bcf after a net injection of 29 Bcf. Stocks in the West Region were 48 Bcf above the 5-year average after a net addition of 5 Bcf. At 3,576 Bcf, total working gas is above the 5-year historical range.

Working gas stocks in the Producing Region, for the week ending September 21, 2012, totaled 1,153 Bcf, with 232 Bcf in salt cavern facilities and 921 Bcf in nonsalt cavern facilities. Working gas stocks increased 15 Bcf in the salt cavern facilities and increased 14 Bcf in the nonsalt cavern facilities since September 14. An historical series of the salt and nonsalt subtotals of the Producing Region is available for download at: wngsr_producing_region_salt.xls.

http://ir.eia.gov/ngs/ngs.html