Working gas in storage was 1,964 Bcf as of Friday, May 10, 2013, according to EIA estimates. This represents a net increase of 99 Bcf from the previous week. Stocks were 694 Bcf less than last year at this time and 83 Bcf below the 5-year average of 2,047 Bcf. In the East Region, stocks were 105 Bcf below the 5-year average following net injections of 55 Bcf. Stocks in the Producing Region were 29 Bcf below the 5-year average of 825 Bcf after a net injection of 31 Bcf. Stocks in the West Region were 51 Bcf above the 5-year average after a net addition of 13 Bcf. At 1,964 Bcf, total working gas is within the 5-year historical range.