```
PJM WH REAL TIME PEAK OTC - ICE OTC                                                                                                              Code-064363
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 800 MWh)                                                                                                  :
     :          :    Positions                                                                                                           :
All  :   170,612:    85,078    121,535      9,703     13,727     16,612     31,722      1,932     13,159     10,737        749      2,169:    1,432       729
Old  :   170,612:    85,078    121,535      9,703     13,727     16,612     31,722      1,932     13,159     10,737        749      2,169:    1,432       729
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     1,798:    -1,211      2,388        103        784       -901      2,582       -954        233        578        179        234:      180      -165
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      49.9       71.2        5.7        8.0        9.7       18.6        1.1        7.7        6.3        0.4        1.3:      0.8       0.4
Old  :     100.0:      49.9       71.2        5.7        8.0        9.7       18.6        1.1        7.7        6.3        0.4        1.3:      0.8       0.4
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        85:        41         37          7          9         11          6          5          8          7          .          6:
Old  :        85:        41         37          7          9         11          6          5          8          7          .          6:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 34.1       37.7       51.8       56.5       27.0       36.1       41.2       46.6
Old  :                 34.1       37.7       51.8       56.5       27.0       36.1       41.2       46.6
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MID-C FINANCIAL PEAK OTC - ICE OTC                                                                                                               Code-064391
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 400 MWh)                                                                                                  :
     :          :    Positions                                                                                                           :
All  :    66,669:    50,157     27,066      6,220     27,931      8,211        317      1,192        641        358        863        688:       77        77
Old  :    66,669:    50,157     27,066      6,220     27,931      8,211        317      1,192        641        358        863        688:       77        77
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     1,130:       625       -279        445      1,470       -521        236        204         48        -51       -140        271:       77        77
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      75.2       40.6        9.3       41.9       12.3        0.5        1.8        1.0        0.5        1.3        1.0:      0.1       0.1
Old  :     100.0:      75.2       40.6        9.3       41.9       12.3        0.5        1.8        1.0        0.5        1.3        1.0:      0.1       0.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        44:        24         24          .          6          6          .          .          .          .          4          4:
Old  :        44:        24         24          .          6          6          .          .          .          .          4          4:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 51.5       56.8       73.1       75.1       47.9       43.3       59.8       55.7
Old  :                 51.5       56.8       73.1       75.1       47.9       43.3       59.8       55.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MID-C FINANCIAL OFF-PEAK OTC - ICE OTC                                                                                                           Code-064392
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 25 MWh)                                                                                                   :
     :          :    Positions                                                                                                           :
All  :   567,263:   475,448    273,169      4,140    201,219     77,267          0      1,152      1,656      8,424     12,472          0:      328       328
Old  :   567,263:   475,448    273,169      4,140    201,219     77,267          0      1,152      1,656      8,424     12,472          0:      328       328
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     2,367:    -1,562      1,049      2,272        661         17          0     -1,000      1,312          0          0          0:      328       328
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      83.8       48.2        0.7       35.5       13.6        0.0        0.2        0.3        1.5        2.2        0.0:      0.1       0.1
Old  :     100.0:      83.8       48.2        0.7       35.5       13.6        0.0        0.2        0.3        1.5        2.2        0.0:      0.1       0.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        34:        18         17          .          5          6          0          .          .          .          .          0:
Old  :        34:        18         17          .          5          6          0          .          .          .          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 61.1       57.9       80.0       77.5       56.0       42.2       64.3       59.9
Old  :                 61.1       57.9       80.0       77.5       56.0       42.2       64.3       59.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WH OFF PEAK REAL TIME OTC - ICE OTC                                                                                                          Code-064394
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 50 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  : 1,676,352: 1,061,003  1,240,906    260,404     48,508    232,950     19,319     18,286     71,602      9,016     42,066     22,034:       24         0
Old  : 1,676,352: 1,061,003  1,240,906    260,404     48,508    232,950     19,319     18,286     71,602      9,016     42,066     22,034:       24         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     8,896:     6,321      1,538     14,096     18,824     -6,386    -13,295         80      4,639        384    -12,936      3,137:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      63.3       74.0       15.5        2.9       13.9        1.2        1.1        4.3        0.5        2.5        1.3:      0.0       0.0
Old  :     100.0:      63.3       74.0       15.5        2.9       13.9        1.2        1.1        4.3        0.5        2.5        1.3:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        60:        30         25          6          4          6          .          .          5          .          5          .:
Old  :        60:        30         25          6          4          6          .          .          5          .          5          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 44.2       44.8       63.0       67.8       34.2       42.7       50.2       54.2
Old  :                 44.2       44.8       63.0       67.8       34.2       42.7       50.2       54.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
SP15 FIN DAYAHEAD LPM PEAK OTC - ICE OTC                                                                                                         Code-064395
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 400 Megawatt Hours)                                                                                       :
     :          :    Positions                                                                                                           :
All  :   129,243:    71,092     93,268     28,170      5,744     25,448        720      1,806      1,560      1,523        591        705:       25       121
Old  :   129,243:    71,092     93,268     28,170      5,744     25,448        720      1,806      1,560      1,523        591        705:       25       121
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     2,610:     3,185      3,892        327       -859       -576       -101        -54        443       -511        -77         74:     -231      -233
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      55.0       72.2       21.8        4.4       19.7        0.6        1.4        1.2        1.2        0.5        0.5:      0.0       0.1
Old  :     100.0:      55.0       72.2       21.8        4.4       19.7        0.6        1.4        1.2        1.2        0.5        0.5:      0.0       0.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        52:        26         30          5          4          8          .          .          4          .          .          .:
Old  :        52:        26         30          5          4          8          .          .          4          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 53.5       41.4       70.6       65.3       30.4       34.2       38.9       42.9
Old  :                 53.5       41.4       70.6       65.3       30.4       34.2       38.9       42.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
SP15 FIN DA LPM OFF PEAK OTC - ICE OTC                                                                                                           Code-064396
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 25 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :   476,561:   348,973    277,600     86,947    153,504     39,065          0        688        624        624      4,752        328:        0         0
Old  :   476,561:   348,973    277,600     86,947    153,504     39,065          0        688        624        624      4,752        328:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :   -14,899:   -13,503    -12,827        977       -740     -2,348          0        688        624        -25        328       -624:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      73.2       58.3       18.2       32.2        8.2        0.0        0.1        0.1        0.1        1.0        0.1:      0.0       0.0
Old  :     100.0:      73.2       58.3       18.2       32.2        8.2        0.0        0.1        0.1        0.1        1.0        0.1:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        34:        19         18          .          5          4          0          .          .          .          .          .:
Old  :        34:        19         18          .          5          4          0          .          .          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 68.3       62.4       86.3       83.1       53.7       50.8       59.6       57.0
Old  :                 68.3       62.4       86.3       83.1       53.7       50.8       59.6       57.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE                                                                                           Code-064657
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    52,381:    21,837     21,545      1,990     23,079      4,885     20,058        885        784        865        366        286:    1,676       551
Old  :    52,381:    21,837     21,545      1,990     23,079      4,885     20,058        885        784        865        366        286:    1,676       551
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     1,080:       704        496        474        952       -500        368        -10          0        -10        122          0:       44        20
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      41.7       41.1        3.8       44.1        9.3       38.3        1.7        1.5        1.7        0.7        0.5:      3.2       1.1
Old  :     100.0:      41.7       41.1        3.8       44.1        9.3       38.3        1.7        1.5        1.7        0.7        0.5:      3.2       1.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        48:        24         21          .          7          9          .          5          .          .          .          .:
Old  :        48:        24         21          .          7          9          .          5          .          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 53.2       59.9       70.3       77.5       46.9       56.0       60.5       68.6
Old  :                 53.2       59.9       70.3       77.5       46.9       56.0       60.5       68.6
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NYISO ZONE A LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                            Code-06465A
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(CONTRACTS 0F 400 MEGAWATT HOURS)                                                                                       :
     :          :    Positions                                                                                                           :
All  :     7,286:     5,523      3,858          0      2,093        128        212        362          0         40          0          0:    1,383       845
Old  :     7,286:     5,523      3,858          0      2,093        128        212        362          0         40          0          0:    1,383       845
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      75.8       53.0        0.0       28.7        1.8        2.9        5.0        0.0        0.5        0.0        0.0:     19.0      11.6
Old  :     100.0:      75.8       53.0        0.0       28.7        1.8        2.9        5.0        0.0        0.5        0.0        0.0:     19.0      11.6
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:         8         11          0          .          .          .          .          0          .          0          0:
Old  :        20:         8         11          0          .          .          .          .          0          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 65.9       62.0       77.0       80.9       63.6       56.7       70.6       74.2
Old  :                 65.9       62.0       77.0       80.9       63.6       56.7       70.6       74.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                          Code-06465H
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    15,132:    10,536     10,106      1,736        686      1,444          0        580        100          0        892          0:    1,316     1,324
Old  :    15,132:    10,536     10,106      1,736        686      1,444          0        580        100          0        892          0:    1,316     1,324
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :       140:       136         12          0          0          0          0          0          0          0        124          0:        4         4
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      69.6       66.8       11.5        4.5        9.5        0.0        3.8        0.7        0.0        5.9        0.0:      8.7       8.7
Old  :     100.0:      69.6       66.8       11.5        4.5        9.5        0.0        3.8        0.7        0.0        5.9        0.0:      8.7       8.7
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        30:        17         14          4          .          4          0          .          .          0          .          0:
Old  :        30:        17         14          4          .          4          0          .          .          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 49.7       46.1       69.6       63.7       47.8       37.7       60.8       52.9
Old  :                 49.7       46.1       69.6       63.7       47.8       37.7       60.8       52.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NORTH ILL CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                      Code-06465I
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    10,497:     6,564      6,052         54      1,792        583          0        720         30        601        146         38:    2,627     1,136
Old  :    10,497:     6,564      6,052         54      1,792        583          0        720         30        601        146         38:    2,627     1,136
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :       112:        12        240          0       -120         64          0          0          0          0          0          0:       36       -72
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      62.5       57.7        0.5       17.1        5.6        0.0        6.9        0.3        5.7        1.4        0.4:     25.0      10.8
Old  :     100.0:      62.5       57.7        0.5       17.1        5.6        0.0        6.9        0.3        5.7        1.4        0.4:     25.0      10.8
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        22:        13         11          .          .          .          0          .          .          .          .          .:
Old  :        22:        13         11          .          .          .          0          .          .          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 30.9       54.8       52.5       72.2       27.0       46.4       40.6       58.1
Old  :                 30.9       54.8       52.5       72.2       27.0       46.4       40.6       58.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-06465M
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(2.5 MEGAWATTS PER OFF PEAK HRS)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    29,388:    18,663     11,094      1,548      9,202      3,776      1,200      3,090          0        740          0        592:    2,869     1,634
Old  :    29,388:    18,663     11,094      1,548      9,202      3,776      1,200      3,090          0        740          0        592:    2,869     1,634
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :       174:      -120        -10        -18        122         18        240          0          0        158          0         18:     -122        26
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      63.5       37.8        5.3       31.3       12.8        4.1       10.5        0.0        2.5        0.0        2.0:      9.8       5.6
Old  :     100.0:      63.5       37.8        5.3       31.3       12.8        4.1       10.5        0.0        2.5        0.0        2.0:      9.8       5.6
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        26:        16         12          .          4          6          .          .          0          .          0          .:
Old  :        26:        16         12          .          4          6          .          .          0          .          0          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 36.6       56.1       55.6       76.9       21.2       50.1       34.3       54.2
Old  :                 36.6       56.1       55.6       76.9       21.2       50.1       34.3       54.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
AEP DAYTON OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-06465O
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(2.5 MEGAWATTS PER OFF PEAK HRS)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    10,978:     7,612      5,990      1,000      2,504      1,280          0          0          0        120          0        198:      768     1,006
Old  :    10,978:     7,612      5,990      1,000      2,504      1,280          0          0          0        120          0        198:      768     1,006
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :      -110:        10       -120          0          0          0          0          0          0       -130          0         10:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      69.3       54.6        9.1       22.8       11.7        0.0        0.0        0.0        1.1        0.0        1.8:      7.0       9.2
Old  :     100.0:      69.3       54.6        9.1       22.8       11.7        0.0        0.0        0.0        1.1        0.0        1.8:      7.0       9.2
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:         9         11          .          .          4          0          0          0          .          0          .:
Old  :        20:         9         11          .          .          4          0          0          0          .          0          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 48.7       66.0       76.2       82.4       42.6       46.6       57.9       59.3
Old  :                 48.7       66.0       76.2       82.4       42.6       46.6       57.9       59.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                       Code-06465S
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(2.5 MEGAWATTS PER OFF PEAK HRS)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    11,840:     8,762      7,802        808      1,358        686          0        482        350          0        248          0:    1,234       914
Old  :    11,840:     8,762      7,802        808      1,358        686          0        482        350          0        248          0:    1,234       914
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :        92:        92        114          0          0          0          0          0          0          0         38          0:        0       -60
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      74.0       65.9        6.8       11.5        5.8        0.0        4.1        3.0        0.0        2.1        0.0:     10.4       7.7
Old  :     100.0:      74.0       65.9        6.8       11.5        5.8        0.0        4.1        3.0        0.0        2.1        0.0:     10.4       7.7
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        25:        16         13          .          .          4          0          .          .          0          .          0:
Old  :        25:        16         13          .          .          4          0          .          .          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 44.6       43.2       67.9       66.2       42.2       37.0       62.7       56.7
Old  :                 44.6       43.2       67.9       66.2       42.2       37.0       62.7       56.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
CINERGY CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-064A01
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    10,745:     5,605      6,849      1,250      1,324      1,208         36        500         12        330          0          0:    2,304       852
Old  :    10,745:     5,605      6,849      1,250      1,324      1,208         36        500         12        330          0          0:    2,304       852
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      52.2       63.7       11.6       12.3       11.2        0.3        4.7        0.1        3.1        0.0        0.0:     21.4       7.9
Old  :     100.0:      52.2       63.7       11.6       12.3       11.2        0.3        4.7        0.1        3.1        0.0        0.0:     21.4       7.9
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        24:        13         11          .          .          4          .          .          .          .          0          0:
Old  :        24:        13         11          .          .          4          .          .          .          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 38.8       48.8       61.6       73.8       34.1       41.4       47.2       61.4
Old  :                 38.8       48.8       61.6       73.8       34.1       41.4       47.2       61.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM N ILL PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                          Code-064A34
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    46,955:    44,534     34,660      2,039     11,926          0          0          0          0          0        369          0:      382         0
Old  :    46,955:    44,534     34,660      2,039     11,926          0          0          0          0          0        369          0:      382         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0       -115          0          0          0          0          0          0          0        115          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      94.8       73.8        4.3       25.4        0.0        0.0        0.0        0.0        0.0        0.8        0.0:      0.8       0.0
Old  :     100.0:      94.8       73.8        4.3       25.4        0.0        0.0        0.0        0.0        0.0        0.8        0.0:      0.8       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        23:        11         10          .          .          0          0          0          0          0          .          0:
Old  :        23:        11         10          .          .          0          0          0          0          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 83.0       82.8       95.1       96.5       83.0       82.8       90.8       93.8
Old  :                 83.0       82.8       95.1       96.5       83.0       82.8       90.8       93.8
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM N ILL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                      Code-064A35
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   665,655:   621,021    437,188     39,139    218,202      5,495          0          0          0          0      4,770          0:        0         0
Old  :   665,655:   621,021    437,188     39,139    218,202      5,495          0          0          0          0      4,770          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:       784          0       -784          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      93.3       65.7        5.9       32.8        0.8        0.0        0.0        0.0        0.0        0.7        0.0:      0.0       0.0
Old  :     100.0:      93.3       65.7        5.9       32.8        0.8        0.0        0.0        0.0        0.0        0.7        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        22:        10          8          .          .          .          0          0          0          0          .          0:
Old  :        22:        10          8          .          .          .          0          0          0          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 85.8       78.2       96.8       96.9       85.1       73.5       92.8       92.2
Old  :                 85.8       78.2       96.8       96.9       85.1       73.5       92.8       92.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM PSEG PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                           Code-064A54
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    50,189:    27,643     34,803     20,006     12,846      2,540          0          0          0          0          0          0:        0         0
Old  :    50,189:    27,643     34,803     20,006     12,846      2,540          0          0          0          0          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      55.1       69.3       39.9       25.6        5.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      55.1       69.3       39.9       25.6        5.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        22:        10         10          4          .          .          0          0          0          0          0          0:
Old  :        22:        10         10          4          .          .          0          0          0          0          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 62.3       80.8       87.0       94.5       62.3       80.8       80.9       87.2
Old  :                 62.3       80.8       87.0       94.5       62.3       80.8       80.9       87.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM PSEG OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                       Code-064A55
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   917,450:   516,607    633,610    353,883    236,880     46,960          0          0          0          0          0          0:        0         0
Old  :   917,450:   516,607    633,610    353,883    236,880     46,960          0          0          0          0          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :    12,010:    12,010     12,010          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      56.3       69.1       38.6       25.8        5.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      56.3       69.1       38.6       25.8        5.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        21:        10          9          4          .          .          0          0          0          0          0          0:
Old  :        21:        10          9          4          .          .          0          0          0          0          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 62.4       80.6       87.3       97.3       62.4       79.3       83.1       87.1
Old  :                 62.4       80.6       87.3       97.3       62.4       79.3       83.1       87.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WESTERN PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-064A56
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :   157,902:    86,462    126,722     65,903     27,310      2,748          0          0          0      1,201          0      1,099:      489        23
Old  :   157,902:    86,462    126,722     65,903     27,310      2,748          0          0          0      1,201          0      1,099:      489        23
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :       194:      -107        148          0          0          0          0          0          0          0          0         46:      255         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      54.8       80.3       41.7       17.3        1.7        0.0        0.0        0.0        0.8        0.0        0.7:      0.3       0.0
Old  :     100.0:      54.8       80.3       41.7       17.3        1.7        0.0        0.0        0.0        0.8        0.0        0.7:      0.3       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        37:        16         21          .          4          .          0          0          0          .          0          .:
Old  :        37:        16         21          .          4          .          0          0          0          .          0          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 65.2       50.8       89.3       71.6       65.1       50.8       85.8       71.4
Old  :                 65.2       50.8       89.3       71.6       65.1       50.8       85.8       71.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WESTERN OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A57
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 50 MEGAWATT HOURS)                                                                                        :
     :          :    Positions                                                                                                           :
All  : 2,763,940: 1,538,284  2,196,654  1,169,240    474,773     38,458          0          0          0          0     36,097     17,958:        0         0
Old  : 2,763,940: 1,538,284  2,196,654  1,169,240    474,773     38,458          0          0          0          0     36,097     17,958:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :    17,130:    13,651      6,321        360      7,690      3,119          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      55.7       79.5       42.3       17.2        1.4        0.0        0.0        0.0        0.0        1.3        0.6:      0.0       0.0
Old  :     100.0:      55.7       79.5       42.3       17.2        1.4        0.0        0.0        0.0        0.0        1.3        0.6:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        37:        14         19          .          5          .          0          0          0          0          .          .:
Old  :        37:        14         19          .          5          .          0          0          0          0          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 68.1       52.8       92.3       75.1       67.5       52.8       90.0       75.0
Old  :                 68.1       52.8       92.3       75.1       67.5       52.8       90.0       75.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WESTERN PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-064A58
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    48,615:    32,623     41,217      9,457      2,440      1,910      1,275        820          0      2,117      1,038      1,190:       43         0
Old  :    48,615:    32,623     41,217      9,457      2,440      1,910      1,275        820          0      2,117      1,038      1,190:       43         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0         46          0          0          0          0          0          0         46          0        -46:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      67.1       84.8       19.5        5.0        3.9        2.6        1.7        0.0        4.4        2.1        2.4:      0.1       0.0
Old  :     100.0:      67.1       84.8       19.5        5.0        3.9        2.6        1.7        0.0        4.4        2.1        2.4:      0.1       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        37:        20         16          5          .          .          .          .          0          .          .          .:
Old  :        37:        20         16          5          .          .          .          .          0          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 47.5       59.1       67.5       75.9       43.4       57.6       59.4       68.7
Old  :                 47.5       59.1       67.5       75.9       43.4       57.6       59.4       68.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WESTERN OFF PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A59
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  : 1,433,711:   968,828  1,052,901     56,836    219,880    107,437     23,520     23,520          0    263,930     16,813     13,160:        0         0
Old  : 1,433,711:   968,828  1,052,901     56,836    219,880    107,437     23,520     23,520          0    263,930     16,813     13,160:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :    24,264:    -8,541        744          0          0          0     23,520     23,520          0          0     -9,285      9,285:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      67.6       73.4        4.0       15.3        7.5        1.6        1.6        0.0       18.4        1.2        0.9:      0.0       0.0
Old  :     100.0:      67.6       73.4        4.0       15.3        7.5        1.6        1.6        0.0       18.4        1.2        0.9:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        40:        21         14          4          .          5          .          .          0          .          .          .:
Old  :        40:        21         14          4          .          5          .          .          0          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 47.2       56.7       66.1       76.3       47.2       49.1       62.8       66.7
Old  :                 47.2       56.7       66.1       76.3       47.2       49.1       62.8       66.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENG INT HUB PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A60
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    51,764:    44,815     36,301      2,420     10,656      4,254          0          0          0        105          0          0:      170       553
Old  :    51,764:    44,815     36,301      2,420     10,656      4,254          0          0          0        105          0          0:      170       553
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      86.6       70.1        4.7       20.6        8.2        0.0        0.0        0.0        0.2        0.0        0.0:      0.3       1.1
Old  :     100.0:      86.6       70.1        4.7       20.6        8.2        0.0        0.0        0.0        0.2        0.0        0.0:      0.3       1.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        27:        16         15          .          4          .          0          0          0          .          0          0:
Old  :        27:        16         15          .          4          .          0          0          0          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 51.2       46.5       74.8       74.9       41.4       36.7       56.6       58.3
Old  :                 51.2       46.5       74.8       74.9       41.4       36.7       56.6       58.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MW IND TR REAL TIME PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A61
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    14,554:    11,424     11,028      1,275      1,530          0          0        815        460        674          0        721:        0         0
Old  :    14,554:    11,424     11,028      1,275      1,530          0          0        815        460        674          0        721:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         .:         .          .          .          .          .          .          .          .          .          .          .:        .         .
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      78.5       75.8        8.8       10.5        0.0        0.0        5.6        3.2        4.6        0.0        5.0:      0.0       0.0
Old  :     100.0:      78.5       75.8        8.8       10.5        0.0        0.0        5.6        3.2        4.6        0.0        5.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:         8          8          .          .          0          0          .          .          .          0          .:
Old  :        20:         8          8          .          .          0          0          .          .          .          0          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 65.4       75.0       89.7       95.9       65.4       75.0       85.5       90.8
Old  :                 65.4       75.0       89.7       95.9       65.4       75.0       85.5       90.8
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM N ILL HUB 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                      Code-064A63
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    39,616:    18,173     31,501     19,038      2,550      1,153        170          0        460          0      3,414        411:      211       127
Old  :    39,616:    18,173     31,501     19,038      2,550      1,153        170          0        460          0      3,414        411:      211       127
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :       460:       345          0         46          0          0       -460          0        460          0        -69         69:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      45.9       79.5       48.1        6.4        2.9        0.4        0.0        1.2        0.0        8.6        1.0:      0.5       0.3
Old  :     100.0:      45.9       79.5       48.1        6.4        2.9        0.4        0.0        1.2        0.0        8.6        1.0:      0.5       0.3
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        24:        13          8          .          .          .          .          0          .          0          .          .:
Old  :        24:        13          8          .          .          .          .          0          .          0          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 73.7       71.4       87.1       91.2       71.4       65.5       80.0       84.1
Old  :                 73.7       71.4       87.1       91.2       71.4       65.5       80.0       84.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NYISO ZONE G 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                       Code-064A68
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    18,640:    11,973     11,636      3,878      4,951      1,811          0        132          0        576          0          0:      402       110
Old  :    18,640:    11,973     11,636      3,878      4,951      1,811          0        132          0        576          0          0:      402       110
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :       347:      -464        255        765          0          0          0         46          0         66          0          0:      -20        46
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      64.2       62.4       20.8       26.6        9.7        0.0        0.7        0.0        3.1        0.0        0.0:      2.2       0.6
Old  :     100.0:      64.2       62.4       20.8       26.6        9.7        0.0        0.7        0.0        3.1        0.0        0.0:      2.2       0.6
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        24:        12         12          .          .          .          0          .          0          .          0          0:
Old  :        24:        12         12          .          .          .          0          .          0          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 54.9       52.9       78.1       78.4       48.4       47.6       68.5       67.6
Old  :                 54.9       52.9       78.1       78.4       48.4       47.6       68.5       67.6
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENG CONN OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A71
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   394,304:   257,624    285,866     49,575     21,333     87,105          0          0          0          0          0          0:        0         0
Old  :   394,304:   257,624    285,866     49,575     21,333     87,105          0          0          0          0          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      65.3       72.5       12.6        5.4       22.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      65.3       72.5       12.6        5.4       22.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:        11          6          .          .          .          0          0          0          0          0          0:
Old  :        20:        11          6          .          .          .          0          0          0          0          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 68.2       89.5       87.4      100.0       41.2       61.4       56.9       66.4
Old  :                 68.2       89.5       87.4      100.0       41.2       61.4       56.9       66.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENG HUB OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A78
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   994,386:   848,201    653,241          0    225,600    103,620     23,400     11,925          0     19,165          0          0:        0         0
Old  :   994,386:   848,201    653,241          0    225,600    103,620     23,400     11,925          0     19,165          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      85.3       65.7        0.0       22.7       10.4        2.4        1.2        0.0        1.9        0.0        0.0:      0.0       0.0
Old  :     100.0:      85.3       65.7        0.0       22.7       10.4        2.4        1.2        0.0        1.9        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        32:        16         18          0          5          .          .          .          0          .          0          0:
Old  :        32:        16         18          0          5          .          .          .          0          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 54.9       56.3       78.3       78.2       34.4       34.2       48.4       44.5
Old  :                 54.9       56.3       78.3       78.2       34.4       34.2       48.4       44.5
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM N ILL HUB 5 OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A79
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   785,186:   340,299    646,362    269,135     77,697     50,352     47,040          0          0     67,585          0     10,775:        0         0
Old  :   785,186:   340,299    646,362    269,135     77,697     50,352     47,040          0          0     67,585          0     10,775:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :   117,000:    46,800    117,000          0    -46,800     46,800          0          0          0     23,400          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      43.3       82.3       34.3        9.9        6.4        6.0        0.0        0.0        8.6        0.0        1.4:      0.0       0.0
Old  :     100.0:      43.3       82.3       34.3        9.9        6.4        6.0        0.0        0.0        8.6        0.0        1.4:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        23:        14          6          .          .          .          .          0          0          .          0          .:
Old  :        23:        14          6          .          .          .          .          0          0          .          0          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 63.5       85.5       87.6       97.1       56.0       69.0       71.4       76.7
Old  :                 63.5       85.5       87.6       97.1       56.0       69.0       71.4       76.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NYISO ZONE A 5MW OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A82
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   176,749:   150,563    137,352     25,418     38,629        768          0          0          0          0          0          0:        0         0
Old  :   176,749:   150,563    137,352     25,418     38,629        768          0          0          0          0          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :     4,680:     4,680      4,680          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      85.2       77.7       14.4       21.9        0.4        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      85.2       77.7       14.4       21.9        0.4        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:         9          9          .          .          .          0          0          0          0          0          0:
Old  :        20:         9          9          .          .          .          0          0          0          0          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 71.1       75.4       92.3       95.7       70.6       75.4       90.8       94.4
Old  :                 71.1       75.4       92.3       95.7       70.6       75.4       90.8       94.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MW CINERGY OFF PEAK CAL MONTH - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A88
Disaggregated Commitments of Traders - Futures Only, July 26, 2011                   
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatts Per Hour)                                                                                     :
     :          :    Positions                                                                                                           :
All  :   366,040:   361,240    332,304          0     33,736          0          0          0          0      4,800          0          0:        0         0
Old  :   366,040:   361,240    332,304          0     33,736          0          0          0          0      4,800          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 19, 2011                                                                    :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      98.7       90.8        0.0        9.2        0.0        0.0        0.0        0.0        1.3        0.0        0.0:      0.0       0.0
Old  :     100.0:      98.7       90.8        0.0        9.2        0.0        0.0        0.0        0.0        1.3        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:         9         11          0          .          0          0          0          0          .          0          0:
Old  :        20:         9         11          0          .          0          0          0          0          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 78.8       70.8       98.8       87.5       64.5       52.1       71.2       66.0
Old  :                 78.8       70.8       98.8       87.5       64.5       52.1       71.2       66.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

----

Updated July 29, 2011