Summary
Working gas in storage was 2,606 Bcf as of Friday, May 4, 2012, according to EIA estimates. This represents a net increase of 30 Bcf from the previous week. Stocks were 799 Bcf higher than last year at this time and 803 Bcf above the 5-year average of 1,803 Bcf. In the East Region, stocks were 400 Bcf above the 5-year average following net injections of 24 Bcf. Stocks in the Producing Region were 299 Bcf above the 5-year average of 739 Bcf after a net withdrawal of 2 Bcf. Stocks in the West Region were 104 Bcf above the 5-year average after a net addition of 8 Bcf. At 2,606 Bcf, total working gas is above the 5-year historical range.

Working gas stocks in the Producing Region, for the week ending May 4, 2012, totaled 1,038 Bcf, with 241 Bcf in salt cavern facilities and 797 Bcf in nonsalt cavern facilities. Working gas stocks decreased 8 Bcf in the salt cavern facilities and increased 6 Bcf in the nonsalt cavern facilities, since April 27. An historical series of the salt and nonsalt subtotals of the Producing Region, reflecting all published revisions and dating back to January 7, 2011, is available for download at: wngsr_producing_region_salt.xls.

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