Summary
Working gas in storage was 3,653 Bcf as of Friday, September 28, 2012, according to EIA estimates. This represents a net increase of 77 Bcf from the previous week. Stocks were 272 Bcf higher than last year at this time and 281 Bcf above the 5-year average of 3,372 Bcf. In the East Region, stocks were 70 Bcf above the 5-year average following net injections of 42 Bcf. Stocks in the Producing Region were 163 Bcf above the 5-year average of 1,017 Bcf after a net injection of 27 Bcf. Stocks in the West Region were 47 Bcf above the 5-year average after a net addition of 8 Bcf. At 3,653 Bcf, total working gas is above the 5-year historical range.

Working gas stocks in the Producing Region, for the week ending September 28, 2012, totaled 1,180 Bcf, with 245 Bcf in salt cavern facilities and 935 Bcf in nonsalt cavern facilities. Working gas stocks increased 13 Bcf in the salt cavern facilities and increased 14 Bcf in the nonsalt cavern facilities since September 21. 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