```
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE                                                                                           Code-064657
Disaggregated Commitments of Traders - Futures Only, September 21, 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  :    40,794:    24,818     24,740      2,316      9,356      4,940      4,922        314        768        160        200        156:    2,714       320
Old  :    40,794:    24,818     24,740      2,316      9,356      4,940      4,922        314        768        160        200        156:    2,714       320
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :      -168:       -84        460          0       -744         20          0         80        -80          0          0          0:      -24        96
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      60.8       60.6        5.7       22.9       12.1       12.1        0.8        1.9        0.4        0.5        0.4:      6.7       0.8
Old  :     100.0:      60.8       60.6        5.7       22.9       12.1       12.1        0.8        1.9        0.4        0.5        0.4:      6.7       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  :        40:        25         17          4          4          7          .          .          .          .          .          .:
Old  :        40:        25         17          4          4          7          .          .          .          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 38.0       51.7       54.1       74.3       33.4       41.9       44.1       62.4
Old  :                 38.0       51.7       54.1       74.3       33.4       41.9       44.1       62.4
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, September 21, 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  :     8,321:     6,848      4,445          0      3,046          0        344          0          0          0         42          0:    1,129       788
Old  :     8,321:     6,848      4,445          0      3,046          0        344          0          0          0         42          0:    1,129       788
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :        44:        44          0          0         23          0          0          0          0          0          0          0:        0        21
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      82.3       53.4        0.0       36.6        0.0        4.1        0.0        0.0        0.0        0.5        0.0:     13.6       9.5
Old  :     100.0:      82.3       53.4        0.0       36.6        0.0        4.1        0.0        0.0        0.0        0.5        0.0:     13.6       9.5
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:        13         11          0          .          0          .          0          0          0          .          0:
Old  :        20:        13         11          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  :                 51.6       61.6       74.6       85.1       48.5       52.4       61.0       66.6
Old  :                 51.6       61.6       74.6       85.1       48.5       52.4       61.0       66.6
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, September 21, 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  :    15,682:     8,926     10,068      3,235      1,628      1,967          0        320        100          0        352          0:    1,454     1,247
Old  :    15,682:     8,926     10,068      3,235      1,628      1,967          0        320        100          0        352          0:    1,454     1,247
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       158:      -112        122        234          0          0          0          0          0          0         14          0:       36        22
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      56.9       64.2       20.6       10.4       12.5        0.0        2.0        0.6        0.0        2.2        0.0:      9.3       8.0
Old  :     100.0:      56.9       64.2       20.6       10.4       12.5        0.0        2.0        0.6        0.0        2.2        0.0:      9.3       8.0
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  :        27:        13         15          4          .          5          0          .          .          0          .          0:
Old  :        27:        13         15          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  :                 45.8       43.1       69.1       68.4       43.0       31.3       56.2       50.1
Old  :                 45.8       43.1       69.1       68.4       43.0       31.3       56.2       50.1
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, September 21, 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  :    12,398:     7,227      8,640      1,220        884      1,104          0          0          0        569          0          0:    2,278     1,770
Old  :    12,398:     7,227      8,640      1,220        884      1,104          0          0          0        569          0          0:    2,278     1,770
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       384:        24        408          0         24          0          0          0          0          0          0          0:      360       -48
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      58.3       69.7        9.8        7.1        8.9        0.0        0.0        0.0        4.6        0.0        0.0:     18.4      14.3
Old  :     100.0:      58.3       69.7        9.8        7.1        8.9        0.0        0.0        0.0        4.6        0.0        0.0:     18.4      14.3
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  :        20:        11          9          .          .          .          0          0          0          .          0          0:
Old  :        20:        11          9          .          .          .          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  :                 35.6       64.6       56.6       77.6       30.5       61.9       46.9       63.9
Old  :                 35.6       64.6       56.6       77.6       30.5       61.9       46.9       63.9
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, September 21, 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  :    31,320:    19,478     11,801      1,511      9,558      6,899          0      1,600         70          0        530        130:    3,232       732
Old  :    31,320:    19,478     11,801      1,511      9,558      6,899          0      1,600         70          0        530        130:    3,232       732
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       264:       264        -18          0        162          0          0        120          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      62.2       37.7        4.8       30.5       22.0        0.0        5.1        0.2        0.0        1.7        0.4:     10.3       2.3
Old  :     100.0:      62.2       37.7        4.8       30.5       22.0        0.0        5.1        0.2        0.0        1.7        0.4:     10.3       2.3
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  :        29:        17         16          .          5          7          0          .          .          0          .          .:
Old  :        29:        17         16          .          5          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  :                 38.6       53.6       58.3       76.0       28.4       41.4       39.4       49.7
Old  :                 38.6       53.6       58.3       76.0       28.4       41.4       39.4       49.7
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, September 21, 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  :    12,734:     7,674      7,752      1,938      2,554        985        340          0         60        152          0         78:    1,507     1,305
Old  :    12,734:     7,674      7,752      1,938      2,554        985        340          0         60        152          0         78:    1,507     1,305
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       150:       152         80         48        120        -40          0          0          0        -14          0          2:        2       -12
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      60.3       60.9       15.2       20.1        7.7        2.7        0.0        0.5        1.2        0.0        0.6:     11.8      10.2
Old  :     100.0:      60.3       60.9       15.2       20.1        7.7        2.7        0.0        0.5        1.2        0.0        0.6:     11.8      10.2
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  :        23:        13         11          .          .          5          .          0          .          .          0          .:
Old  :        23:        13         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  :                 40.5       47.7       61.5       73.9       36.1       43.5       51.4       59.4
Old  :                 40.5       47.7       61.5       73.9       36.1       43.5       51.4       59.4
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, September 21, 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  :    31,204:    20,408     17,899      3,146      3,505      7,650          0          0          0          0      2,150          0:        0         0
Old  :    31,204:    20,408     17,899      3,146      3,505      7,650          0          0          0          0      2,150          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      65.4       57.4       10.1       11.2       24.5        0.0        0.0        0.0        0.0        6.9        0.0:      0.0       0.0
Old  :     100.0:      65.4       57.4       10.1       11.2       24.5        0.0        0.0        0.0        0.0        6.9        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:        11          7          .          .          .          0          0          0          0          .          0:
Old  :        21:        11          7          .          .          .          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  :                 59.4       71.2       82.9       93.4       33.2       38.0       50.5       56.6
Old  :                 59.4       71.2       82.9       93.4       33.2       38.0       50.5       56.6
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, September 21, 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  :    15,317:    11,665      9,297      1,499      3,724      1,616        172          0         12          0          0          0:      353       668
Old  :    15,317:    11,665      9,297      1,499      3,724      1,616        172          0         12          0          0          0:      353       668
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :        82:       -14         62          0         20          0          0          0          0          0          0          0:       96         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      76.2       60.7        9.8       24.3       10.6        1.1        0.0        0.1        0.0        0.0        0.0:      2.3       4.4
Old  :     100.0:      76.2       60.7        9.8       24.3       10.6        1.1        0.0        0.1        0.0        0.0        0.0:      2.3       4.4
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  :        32:        20         16          5          4          7          .          0          .          0          0          0:
Old  :        32:        20         16          5          4          7          .          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  :                 48.1       57.2       62.6       77.7       45.4       47.0       57.0       62.4
Old  :                 48.1       57.2       62.6       77.7       45.4       47.0       57.0       62.4
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, September 21, 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  :     9,823:     6,675      2,830        970      4,772      1,058          0          0          0          0          0          0:    1,120     1,163
Old  :     9,823:     6,675      2,830        970      4,772      1,058          0          0          0          0          0          0:    1,120     1,163
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :        60:        60        -96          0        204          0          0          0          0          0          0          0:        0       -48
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      68.0       28.8        9.9       48.6       10.8        0.0        0.0        0.0        0.0        0.0        0.0:     11.4      11.8
Old  :     100.0:      68.0       28.8        9.9       48.6       10.8        0.0        0.0        0.0        0.0        0.0        0.0:     11.4      11.8
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        22:        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  :                 38.1       61.6       59.8       77.3       34.6       53.4       49.3       58.7
Old  :                 38.1       61.6       59.8       77.3       34.6       53.4       49.3       58.7
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, September 21, 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  :    53,815:    50,569     37,313      2,736     15,992        510          0          0          0          0          0          0:        0         0
Old  :    53,815:    50,569     37,313      2,736     15,992        510          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:       September 14, 2010                                                               :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      94.0       69.3        5.1       29.7        0.9        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      94.0       69.3        5.1       29.7        0.9        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        22:        10          8          .          .          .          0          0          0          0          0          0:
Old  :        22:        10          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  :                 84.3       81.6       95.7       98.9       84.3       81.6       95.7       98.0
Old  :                 84.3       81.6       95.7       98.9       84.3       81.6       95.7       98.0
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, September 21, 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  :   813,722:   753,023    533,076     56,019    275,966      4,680          0          0          0          0          0          0:        0         0
Old  :   813,722:   753,023    533,076     56,019    275,966      4,680          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:       September 14, 2010                                                               :
     :    23,440:    23,440     23,440          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      92.5       65.5        6.9       33.9        0.6        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      92.5       65.5        6.9       33.9        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  :        22:        11          5          .          .          .          0          0          0          0          0          0:
Old  :        22:        11          5          .          .          .          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  :                 82.5       83.4       93.0       99.6       82.5       83.4       93.0       99.4
Old  :                 82.5       83.4       93.0       99.6       82.5       83.4       93.0       99.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM PEPCO PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                          Code-064A50
Disaggregated Commitments of Traders - Futures Only, September 21, 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  :    40,573:    34,975     34,114      5,598      4,739          0          0          0          0          0      1,720          0:        0         0
Old  :    40,573:    34,975     34,114      5,598      4,739          0          0          0          0          0      1,720          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :      -168:         0          0          0          0          0          0          0          0          0          0          0:     -168      -168
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      86.2       84.1       13.8       11.7        0.0        0.0        0.0        0.0        0.0        4.2        0.0:      0.0       0.0
Old  :     100.0:      86.2       84.1       13.8       11.7        0.0        0.0        0.0        0.0        0.0        4.2        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  :        22:        13          6          .          4          0          0          0          0          0          .          0:
Old  :        22:        13          6          .          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  :                 63.1       86.4       84.6       98.1       59.0       73.2       76.7       82.4
Old  :                 63.1       86.4       84.6       98.1       59.0       73.2       76.7       82.4
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, September 21, 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  :    36,774:    31,623     33,714      4,365      2,805          0          0          0          0          0          0          0:      786       255
Old  :    36,774:    31,623     33,714      4,365      2,805          0          0          0          0          0          0          0:      786       255
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       255:         0          0        255          0          0          0          0          0          0          0          0:        0       255
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      86.0       91.7       11.9        7.6        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      2.1       0.7
Old  :     100.0:      86.0       91.7       11.9        7.6        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      2.1       0.7
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        24:        10         10          5          .          0          0          0          0          0          0          0:
Old  :        24:        10         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  :                 77.6       74.5       91.2       96.4       62.5       71.4       76.2       84.0
Old  :                 77.6       74.5       91.2       96.4       62.5       71.4       76.2       84.0
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, September 21, 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  :   527,347:   458,253    474,335     69,094     53,012          0          0          0          0          0          0          0:        0         0
Old  :   527,347:   458,253    474,335     69,094     53,012          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:       September 14, 2010                                                               :
     :     4,680:         0      4,680      4,680          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      86.9       89.9       13.1       10.1        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      86.9       89.9       13.1       10.1        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  :        23:         9         11          4          .          0          0          0          0          0          0          0:
Old  :        23:         9         11          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  :                 80.6       75.2       95.1       95.9       59.4       69.3       73.8       77.6
Old  :                 80.6       75.2       95.1       95.9       59.4       69.3       73.8       77.6
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, September 21, 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  :    77,465:    32,246     51,780     45,133     25,685          0          0          0          0          0          0          0:       86         0
Old  :    77,465:    32,246     51,780     45,133     25,685          0          0          0          0          0          0          0:       86         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      41.6       66.8       58.3       33.2        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.1       0.0
Old  :     100.0:      41.6       66.8       58.3       33.2        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  :        28:        11         15          6          .          0          0          0          0          0          0          0:
Old  :        28:        11         15          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  :                 68.2       62.4       90.2       84.1       68.1       61.8       87.3       83.4
Old  :                 68.2       62.4       90.2       84.1       68.1       61.8       87.3       83.4
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, September 21, 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  : 1,318,272:   515,721    914,088    802,551    404,184          0          0          0          0          0          0          0:        0         0
Old  : 1,318,272:   515,721    914,088    802,551    404,184          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:       September 14, 2010                                                               :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      39.1       69.3       60.9       30.7        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      39.1       69.3       60.9       30.7        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  :        26:        11         11          6          .          0          0          0          0          0          0          0:
Old  :        26:        11         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  :                 68.5       60.1       89.7       86.2       68.5       58.4       86.2       83.3
Old  :                 68.5       60.1       89.7       86.2       68.5       58.4       86.2       83.3
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, September 21, 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  :   213,990:   117,440    148,399     92,815     63,383      2,015          0          0          0      1,720          0          0:        0       193
Old  :   213,990:   117,440    148,399     92,815     63,383      2,015          0          0          0      1,720          0          0:        0       193
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :     1,530:     1,196      1,060        630        255        215          0          0          0          0          0          0:     -511         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      54.9       69.3       43.4       29.6        0.9        0.0        0.0        0.0        0.8        0.0        0.0:      0.0       0.1
Old  :     100.0:      54.9       69.3       43.4       29.6        0.9        0.0        0.0        0.0        0.8        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  :        40:        23         22          4          6          .          0          0          0          .          0          0:
Old  :        40:        23         22          4          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  :                 64.2       55.9       84.5       77.8       64.1       54.5       82.9       74.4
Old  :                 64.2       55.9       84.5       77.8       64.1       54.5       82.9       74.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WESTERN OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A57
Disaggregated Commitments of Traders - Futures Only, September 21, 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  : 3,748,088: 2,161,062  2,611,933  1,544,215  1,093,344     42,811          0          0          0          0          0          0:        0         0
Old  : 3,748,088: 2,161,062  2,611,933  1,544,215  1,093,344     42,811          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:       September 14, 2010                                                               :
     :    27,150:    12,680     19,270     11,270      4,680      3,200          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      57.7       69.7       41.2       29.2        1.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      57.7       69.7       41.2       29.2        1.1        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        37:        21         16          4          6          .          0          0          0          0          0          0:
Old  :        37:        21         16          4          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  :                 66.0       60.9       87.3       80.9       65.9       60.6       85.2       79.9
Old  :                 66.0       60.9       87.3       80.9       65.9       60.6       85.2       79.9
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, September 21, 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  :    61,031:    51,271     54,895      5,105        516      3,125          0          0          0      1,275      2,240          0:      255       255
Old  :    61,031:    51,271     54,895      5,105        516      3,125          0          0          0      1,275      2,240          0:      255       255
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       255:         0        255          0          0          0          0          0          0          0          0          0:      255         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      84.0       89.9        8.4        0.8        5.1        0.0        0.0        0.0        2.1        3.7        0.0:      0.4       0.4
Old  :     100.0:      84.0       89.9        8.4        0.8        5.1        0.0        0.0        0.0        2.1        3.7        0.0:      0.4       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  :        33:        19         17          .          .          .          0          0          0          .          .          0:
Old  :        33:        19         17          .          .          .          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  :                 47.7       56.2       67.3       75.3       42.9       49.7       54.8       58.7
Old  :                 47.7       56.2       67.3       75.3       42.9       49.7       54.8       58.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WESTERN OFF PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A59
Disaggregated Commitments of Traders - Futures Only, September 21, 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  : 1,095,711:   923,966    927,376     64,485     16,315     83,860          0      3,800          0     23,400     64,360          0:        0         0
Old  : 1,095,711:   923,966    927,376     64,485     16,315     83,860          0      3,800          0     23,400     64,360          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :    13,834:     4,474     13,834      9,360          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      84.3       84.6        5.9        1.5        7.7        0.0        0.3        0.0        2.1        5.9        0.0:      0.0       0.0
Old  :     100.0:      84.3       84.6        5.9        1.5        7.7        0.0        0.3        0.0        2.1        5.9        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:        19         19          4          .          4          0          .          0          .          .          0:
Old  :        35:        19         19          4          .          4          0          .          0          .          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 52.5       54.6       72.3       73.3       47.0       50.5       58.9       63.6
Old  :                 52.5       54.6       72.3       73.3       47.0       50.5       58.9       63.6
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, September 21, 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  :    61,775:    46,854     37,284      2,700     14,420     10,071          0          0          0      2,150          0          0:        0         0
Old  :    61,775:    46,854     37,284      2,700     14,420     10,071          0          0          0      2,150          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :     1,275:     1,275      1,275          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      75.8       60.4        4.4       23.3       16.3        0.0        0.0        0.0        3.5        0.0        0.0:      0.0       0.0
Old  :     100.0:      75.8       60.4        4.4       23.3       16.3        0.0        0.0        0.0        3.5        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  :        34:        20         19          .          5          5          0          0          0          .          0          0:
Old  :        34:        20         19          .          5          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  :                 49.8       44.7       69.8       72.5       25.7       29.6       37.9       41.8
Old  :                 49.8       44.7       69.8       72.5       25.7       29.6       37.9       41.8
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, September 21, 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  :    11,606:     7,653      7,798      3,395      2,603        258          0          0          0        130        608         42:      128       297
Old  :    11,606:     7,653      7,798      3,395      2,603        258          0          0          0        130        608         42:      128       297
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :       126:       381        126          0          0          0          0          0          0          0          0          0:     -255         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      65.9       67.2       29.3       22.4        2.2        0.0        0.0        0.0        1.1        5.2        0.4:      1.1       2.6
Old  :     100.0:      65.9       67.2       29.3       22.4        2.2        0.0        0.0        0.0        1.1        5.2        0.4:      1.1       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  :        23:        13         11          .          .          .          0          0          0          .          .          .:
Old  :        23:        13         11          .          .          .          0          0          0          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 63.5       57.9       82.9       78.9       62.0       53.6       72.6       70.1
Old  :                 63.5       57.9       82.9       78.9       62.0       53.6       72.6       70.1
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, September 21, 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  :   552,462:   353,581    309,369     58,481     63,868    140,400          0          0          0          0     38,825          0:        0         0
Old  :   552,462:   353,581    309,369     58,481     63,868    140,400          0          0          0          0     38,825          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      64.0       56.0       10.6       11.6       25.4        0.0        0.0        0.0        0.0        7.0        0.0:      0.0       0.0
Old  :     100.0:      64.0       56.0       10.6       11.6       25.4        0.0        0.0        0.0        0.0        7.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        20:         9          7          4          .          .          0          0          0          0          .          0:
Old  :        20:         9          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  :                 61.7       73.8       85.6       94.7       34.1       39.3       51.9       57.1
Old  :                 61.7       73.8       85.6       94.7       34.1       39.3       51.9       57.1
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, September 21, 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  : 1,142,086:   861,621    636,693     31,189    282,080    198,761          0     23,400          0     49,363          0      1,152:        0         0
Old  : 1,142,086:   861,621    636,693     31,189    282,080    198,761          0     23,400          0     49,363          0      1,152:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       September 14, 2010                                                               :
     :    23,400:    23,400     23,400          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      75.4       55.7        2.7       24.7       17.4        0.0        2.0        0.0        4.3        0.0        0.1:      0.0       0.0
Old  :     100.0:      75.4       55.7        2.7       24.7       17.4        0.0        2.0        0.0        4.3        0.0        0.1:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        37:        19         17          .          5          .          0          .          0          .          0          .:
Old  :        37:        19         17          .          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  :                 49.9       49.9       69.1       72.6       28.0       28.2       40.8       38.2
Old  :                 49.9       49.9       69.1       72.6       28.0       28.2       40.8       38.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

----

Updated September 24, 2010