Summary
Working gas in storage was 2,667 Bcf as of Friday, May 11, 2012, according to EIA estimates. This represents a net increase of 61 Bcf from the previous week. Stocks were 774 Bcf higher than last year at this time and 773 Bcf above the 5-year average of 1,894 Bcf. In the East Region, stocks were 393 Bcf above the 5-year average following net injections of 47 Bcf. Stocks in the Producing Region were 282 Bcf above the 5-year average of 763 Bcf after a net injection of 7 Bcf. Stocks in the West Region were 98 Bcf above the 5-year average after a net addition of 7 Bcf. At 2,667 Bcf, total working gas is above the 5-year historical range.

Working gas stocks in the Producing Region, for the week ending May 11, 2012, totaled 1,045 Bcf, with 238 Bcf in salt cavern facilities and 807 Bcf in nonsalt cavern facilities. Working gas stocks decreased 3 Bcf in the salt cavern facilities and increased 10 Bcf in the nonsalt cavern facilities, since May 4. 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