Working gas in storage was 3,112 Bcf as of Friday, September 9, 2011, according to EIA estimates. This represents a net increase of 87 Bcf from the previous week. Stocks were 140 Bcf less than last year at this time and 52 Bcf below the 5-year average of 3,164 Bcf. In the East Region, stocks were 89 Bcf below the 5-year average following net injections of 59 Bcf. Stocks in the Producing Region were 37 Bcf above the 5-year average of 944 Bcf after a net injection of 22 Bcf. Stocks in the West Region matched the 5-year average after a net addition of 6 Bcf. At 3,112 Bcf, total working gas is within the 5-year historical range.