```
CENTRAL APPALACHIAN COAL - NEW YORK MERCANTILE EXCHANGE                                                                                          Code-024651
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(CONTRACTS OF 1,550 TONS)                                                                                               :
     :          :    Positions                                                                                                           :
All  :     7,020:     5,580      5,310        330        775        395          0         30         90        285          0          0:      340       420
Old  :     7,020:     5,580      5,310        330        775        395          0         30         90        285          0          0:      340       420
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       -60:       -70        -50        -30        -45         45          0          0        -30          0          0          0:       25        20
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      79.5       75.6        4.7       11.0        5.6        0.0        0.4        1.3        4.1        0.0        0.0:      4.8       6.0
Old  :     100.0:      79.5       75.6        4.7       11.0        5.6        0.0        0.4        1.3        4.1        0.0        0.0:      4.8       6.0
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:        15         13          .          .          .          0          .          .          .          0          0:
Old  :        21:        15         13          .          .          .          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  :                 59.7       40.6       81.1       67.0       48.4       34.4       59.3       52.9
Old  :                 59.7       40.6       81.1       67.0       48.4       34.4       59.3       52.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WH REAL TIME PEAK OTC - ICE OTC                                                                                                              Code-064363
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 800 MWh)                                                                                                  :
     :          :    Positions                                                                                                           :
All  :   167,338:    86,498    111,525     12,431     17,611     14,208     27,035      5,450     16,028      8,599        594      1,432:    1,107       490
Old  :   167,338:    86,498    111,525     12,431     17,611     14,208     27,035      5,450     16,028      8,599        594      1,432:    1,107       490
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :     3,854:      -670      2,346         -6        754       -358      2,542       -305      1,691        890          2       -319:       84        43
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      51.7       66.6        7.4       10.5        8.5       16.2        3.3        9.6        5.1        0.4        0.9:      0.7       0.3
Old  :     100.0:      51.7       66.6        7.4       10.5        8.5       16.2        3.3        9.6        5.1        0.4        0.9:      0.7       0.3
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        82:        38         38          5         11         11          8          .          8          8          .          4:
Old  :        82:        38         38          5         11         11          8          .          8          8          .          4:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 33.7       35.4       50.6       55.2       27.1       32.0       41.7       45.1
Old  :                 33.7       35.4       50.6       55.2       27.1       32.0       41.7       45.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MID-C FINANCIAL PEAK OTC - ICE OTC                                                                                                               Code-064391
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 400 MWh)                                                                                                  :
     :          :    Positions                                                                                                           :
All  :    74,993:    51,621     37,649      8,112     22,718     12,529        716        333        547        107        481        360:    1,001       376
Old  :    74,993:    51,621     37,649      8,112     22,718     12,529        716        333        547        107        481        360:    1,001       376
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :     2,928:       -42      1,107        153       -574      1,878       -100       -370        158         30        429        103:      748       197
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      68.8       50.2       10.8       30.3       16.7        1.0        0.4        0.7        0.1        0.6        0.5:      1.3       0.5
Old  :     100.0:      68.8       50.2       10.8       30.3       16.7        1.0        0.4        0.7        0.1        0.6        0.5:      1.3       0.5
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  :        45:        25         22          4          4          7          .          .          .          .          .          .:
Old  :        45:        25         22          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  :                 44.8       56.9       65.2       80.5       35.6       39.0       45.1       49.2
Old  :                 44.8       56.9       65.2       80.5       35.6       39.0       45.1       49.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MID-C FINANCIAL OFF-PEAK OTC - ICE OTC                                                                                                           Code-064392
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 25 MWh)                                                                                                   :
     :          :    Positions                                                                                                           :
All  :   606,597:   547,024    295,933      8,148    256,326     39,713      1,176        344        992      5,416      2,969      1,032:    3,096     9,288
Old  :   606,597:   547,024    295,933      8,148    256,326     39,713      1,176        344        992      5,416      2,969      1,032:    3,096     9,288
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :      -933:    -7,014     -7,335          0     -4,839      1,953          0          0          0      1,032          0          0:    3,096     9,288
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      90.2       48.8        1.3       42.3        6.5        0.2        0.1        0.2        0.9        0.5        0.2:      0.5       1.5
Old  :     100.0:      90.2       48.8        1.3       42.3        6.5        0.2        0.1        0.2        0.9        0.5        0.2:      0.5       1.5
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  :        36:        20         17          .          6          5          .          .          .          .          .          .:
Old  :        36:        20         17          .          6          5          .          .          .          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 61.9       58.0       81.0       79.9       54.9       48.9       65.0       62.0
Old  :                 61.9       58.0       81.0       79.9       54.9       48.9       65.0       62.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM WH OFF PEAK REAL TIME OTC - ICE OTC                                                                                                          Code-064394
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 50 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  : 1,684,133: 1,050,307  1,191,965    199,313     22,404    284,576     33,943     14,322     92,209      1,200     56,096     22,561:       24         0
Old  : 1,684,133: 1,050,307  1,191,965    199,313     22,404    284,576     33,943     14,322     92,209      1,200     56,096     22,561:       24         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :    28,626:    11,313     33,144      6,358      1,198     -5,190          0    -19,480     15,744       -682      2,127      1,083:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      62.4       70.8       11.8        1.3       16.9        2.0        0.9        5.5        0.1        3.3        1.3:      0.0       0.0
Old  :     100.0:      62.4       70.8       11.8        1.3       16.9        2.0        0.9        5.5        0.1        3.3        1.3:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        60:        32         27          6          4          7          .          .          5          .          4          .:
Old  :        60:        32         27          6          4          7          .          .          5          .          4          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 41.3       44.6       61.3       66.9       32.9       41.5       46.2       51.7
Old  :                 41.3       44.6       61.3       66.9       32.9       41.5       46.2       51.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
SP15 FIN DAYAHEAD LPM PEAK OTC - ICE OTC                                                                                                         Code-064395
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 400 Megawatt Hours)                                                                                       :
     :          :    Positions                                                                                                           :
All  :   132,285:    74,176     94,808     25,661      3,715     30,533        304      1,553        829         68         50        711:        3        86
Old  :   132,285:    74,176     94,808     25,661      3,715     30,533        304      1,553        829         68         50        711:        3        86
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       968:     1,426      1,618        883         52       -338     -1,166        147        237         42       -553         92:     -208      -287
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      56.1       71.7       19.4        2.8       23.1        0.2        1.2        0.6        0.1        0.0        0.5:      0.0       0.1
Old  :     100.0:      56.1       71.7       19.4        2.8       23.1        0.2        1.2        0.6        0.1        0.0        0.5:      0.0       0.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        49:        26         28          6          .          8          4          .          .          .          .          .:
Old  :        49:        26         28          6          .          8          4          .          .          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 55.6       42.9       72.3       66.6       35.6       35.6       47.7       46.8
Old  :                 55.6       42.9       72.3       66.6       35.6       35.6       47.7       46.8
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
SP15 FIN DA LPM OFF PEAK OTC - ICE OTC                                                                                                           Code-064396
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 25 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :   545,602:   383,408    343,285    107,996    144,712     51,252        304      2,512          0        977      2,176      1,665:        0         0
Old  :   545,602:   383,408    343,285    107,996    144,712     51,252        304      2,512          0        977      2,176      1,665:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :   -14,074:    -8,706     -2,626     12,464      6,080    -17,832          0          0          0          0        304          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      70.3       62.9       19.8       26.5        9.4        0.1        0.5        0.0        0.2        0.4        0.3:      0.0       0.0
Old  :     100.0:      70.3       62.9       19.8       26.5        9.4        0.1        0.5        0.0        0.2        0.4        0.3:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        33:        19         15          .          4          4          .          .          0          .          .          .:
Old  :        33:        19         15          .          4          4          .          .          0          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 66.7       59.7       89.3       80.7       54.8       47.7       62.5       59.9
Old  :                 66.7       59.7       89.3       80.7       54.8       47.7       62.5       59.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE                                                                                           Code-064657
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    48,172:    20,812     23,114      1,697     16,653      6,187     15,954        620        614        868         26        180:    1,860       778
Old  :    48,172:    20,812     23,114      1,697     16,653      6,187     15,954        620        614        868         26        180:    1,860       778
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :      -612:       547        263       -397      1,439     -1,258      1,058        -80       -566        184         20         -6:     -174      -424
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      43.2       48.0        3.5       34.6       12.8       33.1        1.3        1.3        1.8        0.1        0.4:      3.9       1.6
Old  :     100.0:      43.2       48.0        3.5       34.6       12.8       33.1        1.3        1.3        1.8        0.1        0.4:      3.9       1.6
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  :        44:        26         19          .          6          8          .          .          .          .          .          .:
Old  :        44:        26         19          .          6          8          .          .          .          .          .          .:
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       57.1       65.7       77.4       44.0       51.0       56.5       64.0
Old  :                 48.1       57.1       65.7       77.4       44.0       51.0       56.5       64.0
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    15,171:    10,444     10,207      2,056        866      1,403          0        620        100          0        813          0:    1,168     1,162
Old  :    15,171:    10,444     10,207      2,056        866      1,403          0        620        100          0        813          0:    1,168     1,162
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       128:       160          5        -24         60          0          0          0          0          0         51          0:       -8        12
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      68.8       67.3       13.6        5.7        9.2        0.0        4.1        0.7        0.0        5.4        0.0:      7.7       7.7
Old  :     100.0:      68.8       67.3       13.6        5.7        9.2        0.0        4.1        0.7        0.0        5.4        0.0:      7.7       7.7
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        28:        17         13          4          .          4          0          .          .          0          .          0:
Old  :        28:        17         13          4          .          4          0          .          .          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 49.3       48.6       68.1       66.7       47.3       39.7       59.4       54.6
Old  :                 49.3       48.6       68.1       66.7       47.3       39.7       59.4       54.6
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    10,718:     7,066      5,910        296      2,071        475          0        736         30        624        306         46:    2,181     1,144
Old  :    10,718:     7,066      5,910        296      2,071        475          0        736         30        624        306         46:    2,181     1,144
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :      -349:      -166       -236        -64       -195          0          0         16          0        -27        -20          8:     -100        78
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      65.9       55.1        2.8       19.3        4.4        0.0        6.9        0.3        5.8        2.9        0.4:     20.3      10.7
Old  :     100.0:      65.9       55.1        2.8       19.3        4.4        0.0        6.9        0.3        5.8        2.9        0.4:     20.3      10.7
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  :        21:        12         10          .          .          .          0          .          .          .          .          .:
Old  :        21:        12         10          .          .          .          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  :                 35.1       55.1       58.8       72.7       27.7       47.3       44.0       61.3
Old  :                 35.1       55.1       58.8       72.7       27.7       47.3       44.0       61.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-06465M
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(2.5 MEGAWATTS PER OFF PEAK HRS)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    29,583:    20,362     11,534      1,624      9,669      4,052        180      2,200          0        110          8        816:    2,439     1,304
Old  :    29,583:    20,362     11,534      1,624      9,669      4,052        180      2,200          0        110          8        816:    2,439     1,304
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       150:       140         70          0          0          0         10         80          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      68.8       39.0        5.5       32.7       13.7        0.6        7.4        0.0        0.4        0.0        2.8:      8.2       4.4
Old  :     100.0:      68.8       39.0        5.5       32.7       13.7        0.6        7.4        0.0        0.4        0.0        2.8:      8.2       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  :        28:        17         12          .          4          6          .          .          0          .          .          .:
Old  :        28:        17         12          .          4          6          .          .          0          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 37.4       54.7       57.6       76.8       21.9       48.3       36.5       54.2
Old  :                 37.4       54.7       57.6       76.8       21.9       48.3       36.5       54.2
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(2.5 MEGAWATTS PER OFF PEAK HRS)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    11,904:     8,742      8,407        890      1,432        698         18          0        352          0        395          0:    1,204       620
Old  :    11,904:     8,742      8,407        890      1,432        698         18          0        352          0        395          0:    1,204       620
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :        72:        24         20          0         48          0          0          0          0          0          4          0:       48         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      73.4       70.6        7.5       12.0        5.9        0.2        0.0        3.0        0.0        3.3        0.0:     10.1       5.2
Old  :     100.0:      73.4       70.6        7.5       12.0        5.9        0.2        0.0        3.0        0.0        3.3        0.0:     10.1       5.2
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  :        24:        15         12          .          .          4          .          0          .          0          .          0:
Old  :        24:        15         12          .          .          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  :                 42.8       45.6       66.7       69.0       42.2       39.2       62.4       61.4
Old  :                 42.8       45.6       66.7       69.0       42.2       39.2       62.4       61.4
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    23,473:    15,333     16,348      2,140      1,360      5,595          0          0          0        235          0          0:      170       170
Old  :    23,473:    15,333     16,348      2,140      1,360      5,595          0          0          0        235          0          0:      170       170
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       364:       364        364          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      65.3       69.6        9.1        5.8       23.8        0.0        0.0        0.0        1.0        0.0        0.0:      0.7       0.7
Old  :     100.0:      65.3       69.6        9.1        5.8       23.8        0.0        0.0        0.0        1.0        0.0        0.0:      0.7       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  :        21:        10          7          .          .          .          0          0          0          .          0          0:
Old  :        21:        10          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  :                 67.3       84.2       90.9       98.0       42.7       51.4       55.4       61.7
Old  :                 67.3       84.2       90.9       98.0       42.7       51.4       55.4       61.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
CINERGY CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                        Code-064A01
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(40 MEGAWATT HOURS PER PEAK DAY)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    13,046:     7,392      8,044      1,738      2,182      1,224          0        712         48        330          0         10:    2,304       826
Old  :    13,046:     7,392      8,044      1,738      2,182      1,224          0        712         48        330          0         10:    2,304       826
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       696:       576        576        120         60          0          0         80        -16          0          0          0:       16        -4
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      56.7       61.7       13.3       16.7        9.4        0.0        5.5        0.4        2.5        0.0        0.1:     17.7       6.3
Old  :     100.0:      56.7       61.7       13.3       16.7        9.4        0.0        5.5        0.4        2.5        0.0        0.1:     17.7       6.3
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  :        27:        15         14          .          .          4          0          .          .          .          0          .:
Old  :        27:        15         14          .          .          4          0          .          .          .          0          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 41.4       57.7       62.6       79.9       37.5       47.0       47.6       61.2
Old  :                 41.4       57.7       62.6       79.9       37.5       47.0       47.6       61.2
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    47,156:    44,606     33,448      2,125     13,347          0          0          0          0          0        340          0:      425        21
Old  :    47,156:    44,606     33,448      2,125     13,347          0          0          0          0          0        340          0:      425        21
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      94.6       70.9        4.5       28.3        0.0        0.0        0.0        0.0        0.0        0.7        0.0:      0.9       0.0
Old  :     100.0:      94.6       70.9        4.5       28.3        0.0        0.0        0.0        0.0        0.0        0.7        0.0:      0.9       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        23:        11         10          .          .          0          0          0          0          0          .          0:
Old  :        23:        11         10          .          .          0          0          0          0          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 85.9       80.7       95.5       97.4       84.9       80.7       92.6       94.0
Old  :                 85.9       80.7       95.5       97.4       84.9       80.7       92.6       94.0
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   730,330:   671,216    483,285     41,498    235,987      5,472          0          0          0      6,558          0      5,586:        0         0
Old  :   730,330:   671,216    483,285     41,498    235,987      5,472          0          0          0      6,558          0      5,586:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      91.9       66.2        5.7       32.3        0.7        0.0        0.0        0.0        0.9        0.0        0.8:      0.0       0.0
Old  :     100.0:      91.9       66.2        5.7       32.3        0.7        0.0        0.0        0.0        0.9        0.0        0.8:      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  :        24:        12          9          .          .          .          0          0          0          .          0          .:
Old  :        24:        12          9          .          .          .          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  :                 84.8       76.5       94.8       97.0       83.7       72.2       91.3       92.7
Old  :                 84.8       76.5       94.8       97.0       83.7       72.2       91.3       92.7
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    57,593:    31,003     38,740     23,315     15,578      3,275          0          0          0          0          0          0:        0         0
Old  :    57,593:    31,003     38,740     23,315     15,578      3,275          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:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      53.8       67.3       40.5       27.0        5.7        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      53.8       67.3       40.5       27.0        5.7        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:        12         11          5          .          .          0          0          0          0          0          0:
Old  :        26:        12         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  :                 61.4       79.4       85.8       94.1       61.4       79.4       81.0       86.1
Old  :                 61.4       79.4       85.8       94.1       61.4       79.4       81.0       86.1
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM PSEG OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE                                                                                       Code-064A55
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  : 1,039,882:   567,647    699,458    415,680    283,869     56,555          0          0          0          0          0          0:        0         0
Old  : 1,039,882:   567,647    699,458    415,680    283,869     56,555          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:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      54.6       67.3       40.0       27.3        5.4        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      54.6       67.3       40.0       27.3        5.4        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        23:        13         10          4          .          .          0          0          0          0          0          0:
Old  :        23:        13         10          4          .          .          0          0          0          0          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 62.2       79.5       87.1       97.1       62.1       79.0       83.6       87.0
Old  :                 62.2       79.5       87.1       97.1       62.1       79.0       83.6       87.0
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :   178,572:    98,858    140,194     74,838     33,034      2,877          0          0          0          0        468      1,999:        0         0
Old  :   178,572:    98,858    140,194     74,838     33,034      2,877          0          0          0          0        468      1,999:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :        84:        84         84          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      55.4       78.5       41.9       18.5        1.6        0.0        0.0        0.0        0.0        0.3        1.1:      0.0       0.0
Old  :     100.0:      55.4       78.5       41.9       18.5        1.6        0.0        0.0        0.0        0.0        0.3        1.1:      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  :        40:        20         24          .          5          .          0          0          0          0          .          .:
Old  :        40:        20         24          .          5          .          0          0          0          0          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 64.6       51.3       89.1       71.0       64.6       51.3       86.0       70.7
Old  :                 64.6       51.3       89.1       71.0       64.6       51.3       86.0       70.7
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 50 MEGAWATT HOURS)                                                                                        :
     :          :    Positions                                                                                                           :
All  : 3,064,411: 1,702,418  2,413,859  1,310,232    560,475     38,483          0          0          0          0     38,316     13,278:        0         0
Old  : 3,064,411: 1,702,418  2,413,859  1,310,232    560,475     38,483          0          0          0          0     38,316     13,278:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :     1,632:     1,632      1,632          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      55.6       78.8       42.8       18.3        1.3        0.0        0.0        0.0        0.0        1.3        0.4:      0.0       0.0
Old  :     100.0:      55.6       78.8       42.8       18.3        1.3        0.0        0.0        0.0        0.0        1.3        0.4:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        37:        14         20          .          5          .          0          0          0          0          .          .:
Old  :        37:        14         20          .          5          .          0          0          0          0          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 69.0       54.1       92.9       77.2       68.4       54.1       90.7       77.2
Old  :                 69.0       54.1       92.9       77.2       68.4       54.1       90.7       77.2
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    50,445:    34,558     41,758      7,140      2,165      4,165      1,275        820          0      2,960      1,190        347:        0         0
Old  :    50,445:    34,558     41,758      7,140      2,165      4,165      1,275        820          0      2,960      1,190        347:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       785:       785       -315          0        255          0          0        630          0       -215          0        215:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      68.5       82.8       14.2        4.3        8.3        2.5        1.6        0.0        5.9        2.4        0.7:      0.0       0.0
Old  :     100.0:      68.5       82.8       14.2        4.3        8.3        2.5        1.6        0.0        5.9        2.4        0.7:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        36:        19         16          5          .          .          .          .          0          .          .          .:
Old  :        36:        19         16          5          .          .          .          .          0          .          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 50.5       58.9       66.7       74.6       43.4       56.1       56.1       66.3
Old  :                 50.5       58.9       66.7       74.6       43.4       56.1       56.1       66.3
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  : 1,190,704:   981,023    924,518     80,468    137,264     82,493          0          0          0     46,720     46,429          0:        0         0
Old  : 1,190,704:   981,023    924,518     80,468    137,264     82,493          0          0          0     46,720     46,429          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :     4,680:         0      9,360          0     -9,360      4,680          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      82.4       77.6        6.8       11.5        6.9        0.0        0.0        0.0        3.9        3.9        0.0:      0.0       0.0
Old  :     100.0:      82.4       77.6        6.8       11.5        6.9        0.0        0.0        0.0        3.9        3.9        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  :        36:        18         17          4          .          4          0          0          0          .          .          0:
Old  :        36:        18         17          4          .          4          0          0          0          .          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 48.1       54.5       67.3       74.6       47.6       52.8       61.9       71.7
Old  :                 48.1       54.5       67.3       74.6       47.6       52.8       61.9       71.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
ISO NEW ENG INT HUB PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A60
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    55,561:    45,883     39,453      2,635      8,770      6,785          0          0          0        215          0          0:       43       553
Old  :    55,561:    45,883     39,453      2,635      8,770      6,785          0          0          0        215          0          0:       43       553
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       342:       232        342          0          0          0          0          0          0        110          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      82.6       71.0        4.7       15.8       12.2        0.0        0.0        0.0        0.4        0.0        0.0:      0.1       1.0
Old  :     100.0:      82.6       71.0        4.7       15.8       12.2        0.0        0.0        0.0        0.4        0.0        0.0:      0.1       1.0
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  :        29:        17         15          .          4          .          0          0          0          .          0          0:
Old  :        29:        17         15          .          4          .          0          0          0          .          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 53.0       43.6       77.4       72.7       38.6       34.0       53.1       53.9
Old  :                 53.0       43.6       77.4       72.7       38.6       34.0       53.1       53.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM N ILL HUB 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                      Code-064A63
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    38,689:    16,255     31,464     20,485      2,550        680        630          0          0          0      3,440        385:      254       170
Old  :    38,689:    16,255     31,464     20,485      2,550        680        630          0          0          0      3,440        385:      254       170
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :       215:         0        215          0          0          0          0          0          0          0       -215        215:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      42.0       81.3       52.9        6.6        1.8        1.6        0.0        0.0        0.0        8.9        1.0:      0.7       0.4
Old  :     100.0:      42.0       81.3       52.9        6.6        1.8        1.6        0.0        0.0        0.0        8.9        1.0:      0.7       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  :        21:        11          9          .          .          .          .          0          0          0          .          .:
Old  :        21:        11          9          .          .          .          .          0          0          0          .          .:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 78.5       76.6       89.5       92.7       75.2       69.6       83.1       85.6
Old  :                 78.5       76.6       89.5       92.7       75.2       69.6       83.1       85.6
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NYISO ZONE G 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                       Code-064A68
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 80 Megawatt Hours)                                                                                        :
     :          :    Positions                                                                                                           :
All  :    22,415:    15,719     14,203      3,930      5,536      1,831          0        526          0        510          0          0:      425       319
Old  :    22,415:    15,719     14,203      3,930      5,536      1,831          0        526          0        510          0          0:      425       319
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :     1,386:     1,166      1,386        220          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      70.1       63.4       17.5       24.7        8.2        0.0        2.3        0.0        2.3        0.0        0.0:      1.9       1.4
Old  :     100.0:      70.1       63.4       17.5       24.7        8.2        0.0        2.3        0.0        2.3        0.0        0.0:      1.9       1.4
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  :        24:        13         10          .          .          .          0          .          0          .          0          0:
Old  :        24:        13         10          .          .          .          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  :                 46.7       53.1       77.6       78.5       44.9       44.2       64.4       61.0
Old  :                 46.7       53.1       77.6       78.5       44.9       44.2       64.4       61.0
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   402,605:   257,677    276,722     42,218     25,213    100,670          0          0          0      2,040          0          0:        0         0
Old  :   402,605:   257,677    276,722     42,218     25,213    100,670          0          0          0      2,040          0          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      64.0       68.7       10.5        6.3       25.0        0.0        0.0        0.0        0.5        0.0        0.0:      0.0       0.0
Old  :     100.0:      64.0       68.7       10.5        6.3       25.0        0.0        0.0        0.0        0.5        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  :        21:        10          7          .          .          .          0          0          0          .          0          0:
Old  :        21:        10          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  :                 71.4       88.5       91.3       99.6       39.3       52.5       53.7       60.1
Old  :                 71.4       88.5       91.3       99.6       39.3       52.5       53.7       60.1
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, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  : 1,047,214:   900,341    686,267          0    213,507    123,473     23,400     15,805          0          0      8,162          0:        0         0
Old  : 1,047,214:   900,341    686,267          0    213,507    123,473     23,400     15,805          0          0      8,162          0:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :     1,300:     4,436     -6,576          0      5,506       -736          0          0          0          0      5,506     -2,400:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      86.0       65.5        0.0       20.4       11.8        2.2        1.5        0.0        0.0        0.8        0.0:      0.0       0.0
Old  :     100.0:      86.0       65.5        0.0       20.4       11.8        2.2        1.5        0.0        0.0        0.8        0.0:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        32:        17         17          0          5          .          .          .          0          0          .          0:
Old  :        32:        17         17          0          5          .          .          .          0          0          .          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 54.3       53.0       78.7       76.3       34.4       32.6       49.0       42.0
Old  :                 54.3       53.0       78.7       76.3       34.4       32.6       49.0       42.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PJM N ILL HUB 5 OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A79
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   702,666:   346,683    543,178    249,327    129,625      4,656     47,040          0          0     29,753          0     25,207:        0         0
Old  :   702,666:   346,683    543,178    249,327    129,625      4,656     47,040          0          0     29,753          0     25,207:        0         0
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Changes in Commitments from:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      49.3       77.3       35.5       18.4        0.7        6.7        0.0        0.0        4.2        0.0        3.6:      0.0       0.0
Old  :     100.0:      49.3       77.3       35.5       18.4        0.7        6.7        0.0        0.0        4.2        0.0        3.6:      0.0       0.0
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
     :          :                                                                                                                        :
     :          :    Number of Traders in Each Category                                                                                  :
All  :        21:        12          5          .          .          .          .          0          0          .          0          .:
Old  :        21:        12          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  :                 68.6       86.4       92.3       98.3       60.2       70.6       73.1       77.9
Old  :                 68.6       86.4       92.3       98.3       60.2       70.6       73.1       77.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NYISO ZONE A 5MW OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE                                                                                    Code-064A82
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatt Hours)                                                                                         :
     :          :    Positions                                                                                                           :
All  :   165,581:   137,843    141,496     23,378     19,725      4,360          0          0          0          0          0          0:        0         0
Old  :   165,581:   137,843    141,496     23,378     19,725      4,360          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:       May 24, 2011                                                                     :
     :         0:         0          0          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:      83.2       85.5       14.1       11.9        2.6        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:      83.2       85.5       14.1       11.9        2.6        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  :        20:         9          9          .          .          .          0          0          0          0          0          0:
Old  :        20:         9          9          .          .          .          0          0          0          0          0          0:
Other:         0:         0          0          0          0          0          0          0          0          0          0          0:
     :-------------------------------------------------------------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 71.9       75.0       90.9       92.6       69.2       75.0       87.1       90.4
Old  :                 71.9       75.0       90.9       92.6       69.2       75.0       87.1       90.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
MW CINERGY OFF PEAK CAL MONTH - NEW YORK MERCANTILE EXCHANGE                                                                                     Code-064A88
Disaggregated Commitments of Traders - Futures Only, May 31, 2011                    
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :                                              Reportable Positions                                                      :   Nonreportable
     :          :  Producer/Merchant/ :                                :                                :                                :     Positions
     :   Open   :   Processor/User    :          Swap Dealers          :         Managed Money          :       Other Reportables        :
     : Interest :   Long   :  Short   :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long   :  Short   :Spreading :   Long  :  Short
-------------------------------------------------------------------------------------------------------------------------------------------------------------
     :          :(Contracts of 5 Megawatts Per Hour)                                                                                     :
     :          :    Positions                                                                                                           :
All  :   342,392:   342,392    303,184          0     39,208          0          0          0          0          0          0          0:        0         0
Old  :   342,392:   342,392    303,184          0     39,208          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:       May 24, 2011                                                                     :
     :       424:       424        424          0          0          0          0          0          0          0          0          0:        0         0
     :          :                                                                                                                        :
     :          :    Percent of Open Interest Represented by Each Category of Trader                                                     :
All  :     100.0:     100.0       88.5        0.0       11.5        0.0        0.0        0.0        0.0        0.0        0.0        0.0:      0.0       0.0
Old  :     100.0:     100.0       88.5        0.0       11.5        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  :        20:        10         10          0          4          0          0          0          0          0          0          0:
Old  :        20:        10         10          0          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  :                 89.2       72.2       99.0       91.5       68.7       53.2       74.1       68.8
Old  :                 89.2       72.2       99.0       91.5       68.7       53.2       74.1       68.8
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

----

Updated June 3, 2011