Energy Information Administration "Working Gas in Underground Storage, Lower 48" "Released: May 24, 2012 at 10:30 a.m. (eastern time) for the Week Ending May 18, 2012" "Next Release: May 31, 2012" Region,Stocks in billion (Bcf),,,,,,Historical Comparisons ,,,,,,,Year Ago (05/18/11),,,,5-Year (2007-2011) Average ,18-May-12,,11-May-12,,Change (Bcf),,Stocks (Bcf),,% Change,,Stocks (Bcf),,% Change East,"1,281","","1,236","","45","","844",,"51.8",,"900",,"42.3",,"" West,"399","","386","","13","","259",,"54.1",,"301",,"32.6",,"" Producing,"1,064","","1,045","","19","","891",,"19.4",,"790",,"34.7",,"" Total,"2,744","","2,667","","77","","1,994",,"37.6",,"1,991",,"37.8",,"" Note: This table is provided for ready processing of weekly volumes estimates. It does not include any special notices or other additional information that is available only on the official Weekly Natural Gas Storage Report which is located at http://ir.eia.gov/ngs/ngs.html.