Summary
Working gas in storage was 3,716 Bcf as of Friday, October 21, 2011, according to EIA estimates. This represents a net increase of 92 Bcf from the previous week. Stocks were 28 Bcf less than last year at this time and 158 Bcf above the 5-year average of 3,558 Bcf. In the East Region, stocks were 25 Bcf above the 5-year average following net injections of 44 Bcf. Stocks in the Producing Region were 114 Bcf above the 5-year average of 1,067 Bcf after a net injection of 41 Bcf. Stocks in the West Region were 19 Bcf above the 5-year average after a net addition of 7 Bcf. At 3,716 Bcf, total working gas is within the 5-year historical range.

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