Summary
Working gas in storage was 2,815 Bcf as of Friday, May 25, 2012, according to EIA estimates. This represents a net increase of 71 Bcf from the previous week. Stocks were 732 Bcf higher than last year at this time and 724 Bcf above the 5-year average of 2,091 Bcf. In the East Region, stocks were 368 Bcf above the 5-year average following net injections of 44 Bcf. Stocks in the Producing Region were 263 Bcf above the 5-year average of 817 Bcf after a net injection of 16 Bcf. Stocks in the West Region were 94 Bcf above the 5-year average after a net addition of 11 Bcf. At 2,815 Bcf, total working gas is above the 5-year historical range.

Working gas stocks in the Producing Region, for the week ending May 25, 2012, totaled 1,080 Bcf, with 261 Bcf in salt cavern facilities and 819 Bcf in nonsalt cavern facilities. Working gas stocks increased 4 Bcf in the salt cavern facilities and increased 12 Bcf in the nonsalt cavern facilities since May 18. 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