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Table 7. underground Natural Gas storage - by season, 2009-2011 (volumes in billion cubic feet).

Table 7. Underground Natural Gas Storage - by Season, 2009--2011
(Volumes in Billion Cubic Feet)

Year,             Natural Gas               Change in
Season,               in                    Working
and Month         Underground               Gas from
                  Storage at                  Same
                    End of                   Period
                    Period                  Previous
                                                Year
           Base   Working Gas  Total   Volume   Percent  Injections
            Gas

2009
Refill
Season

April      4,255        1,910  6,165       474     33.0         356
May        4,257        2,375  6,632       535     29.1         512
June       4,268        2,760  7,028       583     26.8         448
July       4,263        3,090  7,354       573     22.8         421
August     4,267        3,359  7,626       493     17.2         362
September  4,276        3,646  7,922       485     15.3         352
October    4,281        3,810  8,091       410     12.1         266

Total         --           --                                 2,718

2010
Heating
Season

November   4,288        3,837  8,125       492     14.7         173
December   4,277        3,130  7,407       290     10.2          44
January    4,278        2,319  6,597       185      8.7          65
February   4,281        1,696  5,978       -62     -3.5          40
March      4,282        1,662  5,944         3      0.2         204

Total         --           --                                   527

2010
Refill
Season

April      4,281        2,012  6,293       102      5.4         425
May        4,282        2,421  6,703        47      2.0         464
June       4,289        2,741  7,030       -19     -0.7         385
July       4,283        2,967  7,249      -123     -4.0         340
August     4,283        3,150  7,433      -209     -6.2         329
September  4,287        3,500  7,787      -146     -4.0         409
October    4,300        3,847  8,146        37      1.0         405

Total         --           --                                 2,758

2011
Heating
Season

November   4,304        3,773  8,077       -65     -1.7         163
December   4,305        3,107  7,412       -23     -0.7          66
January    4,306        2,308  6,614       -11     -0.5          53
February   4,306        1,724  6,029        27      1.6          84
March      4,304        1,581  5,884       -82     -4.9         172

Total         --           --                                   540

2011
Refill
Season

April      4,307        1,789  6,096      -223    -11.1         320
May        4,308        2,188  6,495      -234     -9.7         464
June       4,305        2,530  6,835      -211     -7.7         430
July       4,304        2,774  7,079      -193     -6.5         368
August     4,304        3,020  7,323      -131     -4.1         382
September  4,305        3,416  7,721       -84     -2.4         462

Year,                   Storage
Season,                 Activity
and Month
                      Withdrawals      Net
                                     Withdrawals
                                         (a)

2009 Refill Season

April                     106         -251
May                        45         -467
June                       62         -386
July                       83         -338
August                     88         -274
September                  57         -295
October                    99         -167

Total                     539       -2,179

2010 Heating Season

November                  140          -33
December                  738          694
January                   877          812
February                  660          620
March                     240           36

Total                   2,655        2,128

2010 Refill Season

April                      70         -355
May                        55         -409
June                       64         -321
July                      114         -227
August                    143         -186
September                  56         -353
October                    52         -352

Total                     556       -2,202

2011 Heating Season

November                  238           74
December                  732          666
January                   852          799
February                  668          584
March                     317          145

Total                   2,808        2,268

2011 Refill Season

April                     108         -212
May                        66         -398
June                       90         -340
July                      124         -244
August                    138         -244
September                  64         -398

(a) Positive net withdrawals indicate the volume of withdrawals in
excess of injections. Negative net withdrawals indicate the volume of
injections in excess of the quantities of withdrawals

~ Not applicable.

Notes: See Appendix A, Explanatory Note 5, for discussion of revision
policy. Gas in storage at the end of a reporting period may not equal
the quantity derived by adding or subtracting net injections or
withdrawals during the period to the quantity of gas in storage at
the beginning of the period. This is due to changes in the quantities
of native gas included in base gas and/or losses in base gas due to
migration from storage reservoirs. Totals may not equal sum of
components because of independent rounding. Geographic coverage is
the Lower 48 States and the District of Columbia

Sources: Energy Information Administration (EIA): Form EIA-191M,
"Monthly Underground Gas Storage Report.
COPYRIGHT 2011 U.S. Department of Energy
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Publication:Natural Gas Monthly
Date:Nov 1, 2011
Words:676
Previous Article:Table 6. underground Natural Gas storage - all operators, 2006-2011.
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