Working Gas in Underground Storage, Lower 48
Region Stocks in billion (Bcf)
23-Jul-10 16-Jul-10 Change (Bcf)
East 1,459 1,425 34
West 473 474 -1
Producing 987 992 -5
Total 2,919 2,891 28

RegionHistorical Comparisons
Year Ago (07/23/09)5-Year (2005-2009) Average
Stocks (Bcf)% ChangeStocks (Bcf)% Change
East 1,515 -3.7 1,434 1.7
West 441 7.3 385 22.9
Producing 1,057 -6.6 861 14.6
Total 3,013 -3.1 2,680 8.9

Summary
Working gas in storage was 2,919 Bcf as of Friday, July 23, 2010, according to EIA estimates. This represents a net increase of 28 Bcf from the previous week. Stocks were 94 Bcf less than last year at this time and 239 Bcf above the 5-year average of 2,680 Bcf. In the East Region, stocks were 25 Bcf above the 5-year average following net injections of 34 Bcf. Stocks in the Producing Region were 126 Bcf above the 5-year average of 861 Bcf after a net withdrawal of 5 Bcf. Stocks in the West Region were 88 Bcf above the 5-year average after a net drawdown of 1 Bcf. At 2,919 Bcf, total working gas is within the 5-year historical range.