```
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE                                                                                           Code-064657
Disaggregated Commitments of Traders - Futures Only, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    41,166:    25,372     23,846      2,621      9,709      5,876      3,804        560        610          0         33        189:    2,694       343
Old  :    41,166:    25,372     23,846      2,621      9,709      5,876      3,804        560        610          0         33        189:    2,694       343
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -498:      -373       -364         71       -602         41       -231        120        160          0         31        -27:     -139       143
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      61.6       57.9        6.4       23.6       14.3        9.2        1.4        1.5        0.0        0.1        0.5:      6.5       0.8
Old  :     100.0:      61.6       57.9        6.4       23.6       14.3        9.2        1.4        1.5        0.0        0.1        0.5:      6.5       0.8
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  :        42:        23         21          4          4          6          .          .          .          0          .          .:
Old  :        42:        23         21          4          4          6          .          .          .          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  :                 34.7       48.2       54.7       71.4       28.7       34.1       39.5       51.6
Old  :                 34.7       48.2       54.7       71.4       28.7       34.1       39.5       51.6
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :     7,871:     5,962      3,773         20      3,124        286        432          0          0        445         42         65:      661       581
Old  :     7,871:     5,962      3,773         20      3,124        286        432          0          0        445         42         65:      661       581
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :         .:         .          .          .          .          .          .          .          .          .          .          .:        .         .
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      75.7       47.9        0.3       39.7        3.6        5.5        0.0        0.0        5.7        0.5        0.8:      8.4       7.4
Old  :     100.0:      75.7       47.9        0.3       39.7        3.6        5.5        0.0        0.0        5.7        0.5        0.8:      8.4       7.4
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  :        20:        10          8          .          .          .          .          0          0          .          .          .:
Old  :        20:        10          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  :                 52.6       69.3       76.7       86.0       44.5       52.7       60.8       62.4
Old  :                 52.6       69.3       76.7       86.0       44.5       52.7       60.8       62.4
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    15,716:     9,055     10,236      2,987      1,670      2,185          0        180        240          0        296          0:    1,249       909
Old  :    15,716:     9,055     10,236      2,987      1,670      2,185          0        180        240          0        296          0:    1,249       909
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -671:      -443       -380       -210        -52        -67        -20          0        -20          0        -62          0:       89       -90
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      57.6       65.1       19.0       10.6       13.9        0.0        1.1        1.5        0.0        1.9        0.0:      7.9       5.8
Old  :     100.0:      57.6       65.1       19.0       10.6       13.9        0.0        1.1        1.5        0.0        1.9        0.0:      7.9       5.8
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  :        29:        14         16          4          .          5          0          .          .          0          .          0:
Old  :        29:        14         16          4          .          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  :                 44.9       43.5       67.5       66.2       37.8       31.3       51.7       47.3
Old  :                 44.9       43.5       67.5       66.2       37.8       31.3       51.7       47.3
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    11,778:     7,534      8,784      1,316        686      1,220          0          0          0          0          0          0:    1,708     1,088
Old  :    11,778:     7,534      8,784      1,316        686      1,220          0          0          0          0          0          0:    1,708     1,088
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -710:      -467       -628        -81        -18        -20          0          0          0          0          0          0:     -142       -44
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      64.0       74.6       11.2        5.8       10.4        0.0        0.0        0.0        0.0        0.0        0.0:     14.5       9.2
Old  :     100.0:      64.0       74.6       11.2        5.8       10.4        0.0        0.0        0.0        0.0        0.0        0.0:     14.5       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:        12         10          4          .          .          0          0          0          0          0          0:
Old  :        20:        12         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  :                 37.8       67.7       62.7       82.3       31.1       65.8       50.8       67.3
Old  :                 37.8       67.7       62.7       82.3       31.1       65.8       50.8       67.3
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    31,185:    19,483     11,703      1,418      9,072      7,256          0      1,560         70          0        570        130:    2,828       824
Old  :    31,185:    19,483     11,703      1,418      9,072      7,256          0      1,560         70          0        570        130:    2,828       824
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -769:      -432       -300        -94       -198       -119          0        -80          0          0        -50          0:     -124       -22
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      62.5       37.5        4.5       29.1       23.3        0.0        5.0        0.2        0.0        1.8        0.4:      9.1       2.6
Old  :     100.0:      62.5       37.5        4.5       29.1       23.3        0.0        5.0        0.2        0.0        1.8        0.4:      9.1       2.6
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  :        29:        17         16          .          6          7          0          .          .          0          .          .:
Old  :        29:        17         16          .          6          7          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  :                 37.8       53.4       57.9       76.0       27.2       40.7       38.8       48.9
Old  :                 37.8       53.4       57.9       76.0       27.2       40.7       38.8       48.9
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    11,973:     6,590      6,936      1,908      2,475      1,131        280          0         60        246          0         56:    1,702     1,315
Old  :    11,973:     6,590      6,936      1,908      2,475      1,131        280          0         60        246          0         56:    1,702     1,315
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -494:      -312       -350        -58        -41        -22        -60          0          0         -8          0          0:      -34       -81
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      55.0       57.9       15.9       20.7        9.4        2.3        0.0        0.5        2.1        0.0        0.5:     14.2      11.0
Old  :     100.0:      55.0       57.9       15.9       20.7        9.4        2.3        0.0        0.5        2.1        0.0        0.5:     14.2      11.0
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:        11         11          .          .          5          .          0          .          .          0          .:
Old  :        21:        11         11          .          .          5          .          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  :                 41.9       46.7       62.9       72.7       38.7       41.1       50.3       55.9
Old  :                 41.9       46.7       62.9       72.7       38.7       41.1       50.3       55.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENG CONN PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-06465T
Disaggregated Commitments of Traders - Futures Only, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    32,749:    21,632     18,212      3,212      4,165      7,650          0          0          0          0      2,700          0:      255        22
Old  :    32,749:    21,632     18,212      3,212      4,165      7,650          0          0          0          0      2,700          0:      255        22
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -2,520:    -2,457     -1,344        -63       -630          0          0          0          0          0       -525          0:        0       -21
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      66.1       55.6        9.8       12.7       23.4        0.0        0.0        0.0        0.0        8.2        0.0:      0.8       0.1
Old  :     100.0:      66.1       55.6        9.8       12.7       23.4        0.0        0.0        0.0        0.0        8.2        0.0:      0.8       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  :        20:         9          6          .          .          .          0          0          0          0          .          0:
Old  :        20:         9          6          .          .          .          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  :                 57.8       71.8       85.9       96.0       36.2       41.2       55.2       61.8
Old  :                 57.8       71.8       85.9       96.0       36.2       41.2       55.2       61.8
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    15,263:    11,367      9,139      1,233      4,028      1,486        132          0         12         40          0          0:      993       598
Old  :    15,263:    11,367      9,139      1,233      4,028      1,486        132          0         12         40          0          0:      993       598
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -1,042:      -640       -868       -450       -202         48          0          0          0         40          0          0:      -40       -20
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      74.5       59.9        8.1       26.4        9.7        0.9        0.0        0.1        0.3        0.0        0.0:      6.5       3.9
Old  :     100.0:      74.5       59.9        8.1       26.4        9.7        0.9        0.0        0.1        0.3        0.0        0.0:      6.5       3.9
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  :        29:        17         17          .          5          6          .          0          .          .          0          0:
Old  :        29:        17         17          .          5          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  :                 47.7       61.1       65.0       78.6       45.2       53.4       58.4       64.9
Old  :                 47.7       61.1       65.0       78.6       45.2       53.4       58.4       64.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
CINERGY OFF PEAK LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                         Code-064A02
Disaggregated Commitments of Traders - Futures Only, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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 MW X OFF PEAK HOURS PER MONTH)                                                                                     :
     :          :    Positions                                                                                                           :
All  :     9,908:     6,582      2,820      1,078      4,690      1,078          0          0          0          0          0          0:    1,170     1,320
Old  :     9,908:     6,582      2,820      1,078      4,690      1,078          0          0          0          0          0          0:    1,170     1,320
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -472:      -279       -148       -108       -282          0          0          0          0          0          0          0:      -85       -42
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      66.4       28.5       10.9       47.3       10.9        0.0        0.0        0.0        0.0        0.0        0.0:     11.8      13.3
Old  :     100.0:      66.4       28.5       10.9       47.3       10.9        0.0        0.0        0.0        0.0        0.0        0.0:     11.8      13.3
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  :        22:        15         12          .          4          4          0          0          0          0          0          0:
Old  :        22:        15         12          .          4          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  :                 39.1       61.1       60.4       75.7       35.2       52.8       50.9       58.3
Old  :                 39.1       61.1       60.4       75.7       35.2       52.8       50.9       58.3
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    52,882:    50,238     38,524      2,134     13,804        510          0          0          0          0          0          0:        0        44
Old  :    52,882:    50,238     38,524      2,134     13,804        510          0          0          0          0          0          0:        0        44
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -2,583:    -2,436     -2,037       -147       -504          0          0          0          0          0          0          0:        0       -42
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      95.0       72.8        4.0       26.1        1.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.1
Old  :     100.0:      95.0       72.8        4.0       26.1        1.0        0.0        0.0        0.0        0.0        0.0        0.0:      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  :        21:         9          8          .          .          .          0          0          0          0          0          0:
Old  :        21:         9          8          .          .          .          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  :                 87.7       84.5       97.1       98.0       87.7       84.5       97.1       97.0
Old  :                 87.7       84.5       97.1       98.0       87.7       84.5       97.1       97.0
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :   771,902:   717,819    532,420     47,835    233,234      6,248          0          0          0          0          0          0:        0         0
Old  :   771,902:   717,819    532,420     47,835    233,234      6,248          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 27, 2010                                                                    :
     :   -48,960:   -42,024    -42,840     -6,936     -6,120          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      93.0       69.0        6.2       30.2        0.8        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      93.0       69.0        6.2       30.2        0.8        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:         9          6          .          .          .          0          0          0          0          0          0:
Old  :        21:         9          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  :                 85.8       87.6       95.9       99.2       85.8       87.6       95.9       98.9
Old  :                 85.8       87.6       95.9       99.2       85.8       87.6       95.9       98.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM PPL PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                            Code-064A52
Disaggregated Commitments of Traders - Futures Only, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    37,451:    31,653     34,646      4,990      2,805          0          0          0          0          0          0          0:      808         0
Old  :    37,451:    31,653     34,646      4,990      2,805          0          0          0          0          0          0          0:      808         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -2,121:    -1,386     -2,121       -714          0          0          0          0          0          0          0          0:      -21         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      84.5       92.5       13.3        7.5        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      2.2       0.0
Old  :     100.0:      84.5       92.5       13.3        7.5        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      2.2       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:         9         10          5          .          0          0          0          0          0          0          0:
Old  :        23:         9         10          5          .          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  :                 77.2       77.6       91.6       96.2       62.2       73.7       76.6       84.4
Old  :                 77.2       77.6       91.6       96.2       62.2       73.7       76.6       84.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM PPL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-064A53
Disaggregated Commitments of Traders - Futures Only, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :   548,539:   472,365    493,959     76,174     54,580          0          0          0          0          0          0          0:        0         0
Old  :   548,539:   472,365    493,959     76,174     54,580          0          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 27, 2010                                                                    :
     :   -19,328:    -7,088    -19,328    -12,240          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      86.1       90.0       13.9       10.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      86.1       90.0       13.9       10.0        0.0        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:         9         10          4          .          0          0          0          0          0          0          0:
Old  :        22:         9         10          4          .          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  :                 79.6       74.5       94.8       95.5       58.7       68.8       74.0       78.8
Old  :                 79.6       74.5       94.8       95.5       58.7       68.8       74.0       78.8
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    72,601:    24,610     47,374     47,883     25,227          0          0          0          0          0          0          0:      108         0
Old  :    72,601:    24,610     47,374     47,883     25,227          0          0          0          0          0          0          0:      108         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -4,452:    -1,848     -2,646     -2,583     -1,806          0          0          0          0          0          0          0:      -21         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      33.9       65.3       66.0       34.7        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.1       0.0
Old  :     100.0:      33.9       65.3       66.0       34.7        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      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  :        26:         9         13          6          .          0          0          0          0          0          0          0:
Old  :        26:         9         13          6          .          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  :                 69.8       65.1       88.2       90.1       69.8       65.1       88.1       90.1
Old  :                 69.8       65.1       88.2       90.1       69.8       65.1       88.1       90.1
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  : 1,249,454:   399,471    861,574    849,983    387,880          0          0          0          0          0          0          0:        0         0
Old  : 1,249,454:   399,471    861,574    849,983    387,880          0          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 27, 2010                                                                    :
     :   -69,520:   -20,968    -37,696    -48,552    -31,824          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      32.0       69.0       68.0       31.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      32.0       69.0       68.0       31.0        0.0        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  :        25:        10         11          6          .          0          0          0          0          0          0          0:
Old  :        25:        10         11          6          .          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  :                 70.4       61.9       86.7       90.2       70.4       60.6       86.7       87.3
Old  :                 70.4       61.9       86.7       90.2       70.4       60.6       86.7       87.3
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :   220,252:   130,067    150,854     86,015     67,938      1,460          0          0          0      2,710          0          0:        0         0
Old  :   220,252:   130,067    150,854     86,015     67,938      1,460          0          0          0      2,710          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -8,189:    -5,585     -4,516     -1,869     -3,673          0          0          0          0       -735          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      59.1       68.5       39.1       30.8        0.7        0.0        0.0        0.0        1.2        0.0        0.0:      0.0       0.0
Old  :     100.0:      59.1       68.5       39.1       30.8        0.7        0.0        0.0        0.0        1.2        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  :        41:        23         23          .          8          .          0          0          0          .          0          0:
Old  :        41:        23         23          .          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  :                 64.8       55.5       85.4       76.8       64.8       54.1       84.2       72.8
Old  :                 64.8       55.5       85.4       76.8       64.8       54.1       84.2       72.8
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  : 3,752,878: 2,242,860  2,576,113  1,486,422  1,153,169     23,596          0          0          0          0          0          0:        0         0
Old  : 3,752,878: 2,242,860  2,576,113  1,486,422  1,153,169     23,596          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 27, 2010                                                                    :
     :  -116,654:   -91,766    -60,184    -24,888    -56,470          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      59.8       68.6       39.6       30.7        0.6        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      59.8       68.6       39.6       30.7        0.6        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  :        36:        20         16          .          6          .          0          0          0          0          0          0:
Old  :        36:        20         16          .          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  :                 68.0       61.3       89.2       80.7       68.0       61.0       88.6       79.1
Old  :                 68.0       61.3       89.2       80.7       68.0       61.0       88.6       79.1
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    67,197:    56,904     61,526      6,275        323      2,743          0          0          0      1,275      2,350          0:        0       255
Old  :    67,197:    56,904     61,526      6,275        323      2,743          0          0          0      1,275      2,350          0:        0       255
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -3,182:    -2,993     -3,077       -105         84        -84          0          0          0          0       -105          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      84.7       91.6        9.3        0.5        4.1        0.0        0.0        0.0        1.9        3.5        0.0:      0.0       0.4
Old  :     100.0:      84.7       91.6        9.3        0.5        4.1        0.0        0.0        0.0        1.9        3.5        0.0:      0.0       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  :        35:        22         15          4          .          .          0          0          0          .          .          0:
Old  :        35:        22         15          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  :                 48.3       58.5       66.9       80.4       40.1       46.2       51.2       54.2
Old  :                 48.3       58.5       66.9       80.4       40.1       46.2       51.2       54.2
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  : 1,190,099: 1,036,249  1,018,108     41,027     16,248     89,423          0          0          0     23,400     66,320          0:        0         0
Old  : 1,190,099: 1,036,249  1,018,108     41,027     16,248     89,423          0          0          0     23,400     66,320          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :   -48,552:   -44,472    -42,432        -10      6,630     -4,070          0          0          0          0     -2,040          0:        0    -6,640
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      87.1       85.5        3.4        1.4        7.5        0.0        0.0        0.0        2.0        5.6        0.0:      0.0       0.0
Old  :     100.0:      87.1       85.5        3.4        1.4        7.5        0.0        0.0        0.0        2.0        5.6        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:        18         16          4          .          4          0          0          0          .          .          0:
Old  :        32:        18         16          4          .          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  :                 53.7       58.5       75.6       75.7       45.7       47.2       55.6       59.6
Old  :                 53.7       58.5       75.6       75.7       45.7       47.2       55.6       59.6
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    60,085:    43,888     35,295      2,920     14,103     10,577          0          0          0      2,700        110          0:        0         0
Old  :    60,085:    43,888     35,295      2,920     14,103     10,577          0          0          0      2,700        110          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :    -3,420:    -2,202     -1,851      1,065        189     -1,758          0          0          0       -525          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      73.0       58.7        4.9       23.5       17.6        0.0        0.0        0.0        4.5        0.2        0.0:      0.0       0.0
Old  :     100.0:      73.0       58.7        4.9       23.5       17.6        0.0        0.0        0.0        4.5        0.2        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  :        35:        18         20          .          6          6          0          0          0          .          .          0:
Old  :        35:        18         20          .          6          6          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  :                 50.7       44.9       70.2       71.4       27.4       29.7       41.0       39.4
Old  :                 50.7       44.9       70.2       71.4       27.4       29.7       41.0       39.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NYISO ZONE 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                         Code-064A66
Disaggregated Commitments of Traders - Futures Only, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :     9,626:     7,893      6,226      1,043      2,779        324          0          0          0        216          0          0:      150       297
Old  :     9,626:     7,893      6,226      1,043      2,779        324          0          0          0        216          0          0:      150       297
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :      -819:      -504       -567       -189       -168        -63          0          0          0        -42          0          0:      -21       -21
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      82.0       64.7       10.8       28.9        3.4        0.0        0.0        0.0        2.2        0.0        0.0:      1.6       3.1
Old  :     100.0:      82.0       64.7       10.8       28.9        3.4        0.0        0.0        0.0        2.2        0.0        0.0:      1.6       3.1
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  :        21:        13         10          .          .          .          0          0          0          .          0          0:
Old  :        21:        13         10          .          .          .          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  :                 48.2       59.0       75.6       83.5       45.9       53.9       58.3       62.3
Old  :                 48.2       59.0       75.6       83.5       45.9       53.9       58.3       62.3
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :    13,050:     7,921      8,565      4,418      3,385        539          0          0          0          0        220          0:      172       341
Old  :    13,050:     7,921      8,565      4,418      3,385        539          0          0          0          0        220          0:      172       341
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :        36:      -987        183      1,107        -63        -63          0          0          0          0          0          0:      -21       -21
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      60.7       65.6       33.9       25.9        4.1        0.0        0.0        0.0        0.0        1.7        0.0:      1.3       2.6
Old  :     100.0:      60.7       65.6       33.9       25.9        4.1        0.0        0.0        0.0        0.0        1.7        0.0:      1.3       2.6
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  :        21:        10          9          .          5          .          0          0          0          0          .          0:
Old  :        21:        10          9          .          5          .          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  :                 60.1       53.6       85.9       81.1       56.0       50.9       75.2       71.3
Old  :                 60.1       53.6       85.9       81.1       56.0       50.9       75.2       71.3
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  :   592,470:   392,413    327,817     59,657     75,628    140,400          0          0          0          0     48,625          0:        0         0
Old  :   592,470:   392,413    327,817     59,657     75,628    140,400          0          0          0          0     48,625          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :   -46,512:   -45,288    -24,072     -1,224    -12,240          0          0          0          0          0    -10,200          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      66.2       55.3       10.1       12.8       23.7        0.0        0.0        0.0        0.0        8.2        0.0:      0.0       0.0
Old  :     100.0:      66.2       55.3       10.1       12.8       23.7        0.0        0.0        0.0        0.0        8.2        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          7          4          .          .          0          0          0          0          .          0:
Old  :        21:        10          7          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  :                 58.5       72.6       86.4       94.6       36.0       41.0       55.1       59.9
Old  :                 58.5       72.6       86.4       94.6       36.0       41.0       55.1       59.9
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, August 3, 2010                  
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              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  : 1,142,834:   853,683    632,713     29,621    272,704    210,905          0     23,400          0     48,625      3,112          0:        0         0
Old  : 1,142,834:   853,683    632,713     29,621    272,704    210,905          0     23,400          0     48,625      3,112          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       July 27, 2010                                                                    :
     :   -68,952:   -48,144    -59,160      1,632      4,488    -12,240          0          0          0    -10,200     -2,040          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      74.7       55.4        2.6       23.9       18.5        0.0        2.0        0.0        4.3        0.3        0.0:      0.0       0.0
Old  :     100.0:      74.7       55.4        2.6       23.9       18.5        0.0        2.0        0.0        4.3        0.3        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  :        37:        20         17          .          5          5          0          .          0          .          .          0:
Old  :        37:        20         17          .          5          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  :                 48.1       49.9       67.0       72.5       25.5       27.0       38.1       36.6
Old  :                 48.1       49.9       67.0       72.5       25.5       27.0       38.1       36.6
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

----

Updated August 6, 2010