Summary
Working gas in storage was 3,806 Bcf as of Friday, December 7, 2012, according to EIA estimates. This represents a net increase of 2 Bcf from the previous week. Stocks were 48 Bcf higher than last year at this time and 283 Bcf above the 5-year average of 3,523 Bcf. In the East Region, stocks were 42 Bcf above the 5-year average following net withdrawals of 12 Bcf. Stocks in the Producing Region were 171 Bcf above the 5-year average of 1,114 Bcf after a net injection of 12 Bcf. Stocks in the West Region were 70 Bcf above the 5-year average after a net addition of 2 Bcf. At 3,806 Bcf, total working gas is above the 5-year historical range.

Working gas stocks in the Producing Region, for the week ending December 7, 2012, totaled 1,285 Bcf, with 320 Bcf in salt cavern facilities and 966 Bcf in nonsalt cavern facilities. Working gas stocks increased 4 Bcf in the salt cavern facilities and increased 9 in the nonsalt cavern facilities since November 30. 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