Summary
Working gas in storage was 3,312 Bcf as of Friday, September 23, 2011, according to EIA estimates. This represents a net increase of 111 Bcf from the previous week. Stocks were 91 Bcf less than last year at this time and 5 Bcf above the 5-year average of 3,307 Bcf. In the East Region, stocks were 52 Bcf below the 5-year average following net injections of 67 Bcf. Stocks in the Producing Region were 54 Bcf above the 5-year average of 982 Bcf after a net injection of 33 Bcf. Stocks in the West Region were 3 Bcf above the 5-year average after a net addition of 11 Bcf. At 3,312 Bcf, total working gas is within the 5-year historical range.

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