```
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WH REAL TIME PEAK OTC - ICE OTC   (Contracts of 800 MWh)                                                   :
CFTC Code #064363                                                    Open Interest is   187,492                :
: Positions                                                                                                    :
:  106,156   131,425    14,728    10,653    17,031     8,152     2,658    20,083    15,890       755     3,533 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:      383     1,151       807      -734       781      -367      -398       257      -379       143       -58 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     56.6      70.1       7.9       5.7       9.1       4.3       1.4      10.7       8.5       0.4       1.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    83                     :
:       45        38         6         8        11         8         .         8         9         4         8 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
MID-C FINANCIAL PEAK OTC - ICE OTC   (Contracts of 400 MWh)                                                    :
CFTC Code #064391                                                    Open Interest is    66,243                :
: Positions                                                                                                    :
:   52,465    44,597     1,045     8,924    12,293        50         0         0        26        89       263 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -3,634    -3,297       840      -435      -948      -158        -1       -25      -692        89      -165 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     79.2      67.3       1.6      13.5      18.6       0.1       0.0       0.0       0.0       0.1       0.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    37                     :
:       25        24         .         .         5         .         0         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
MID-C FINANCIAL OFF-PEAK OTC - ICE OTC   (Contracts of 25 MWh)                                                 :
CFTC Code #064392                                                    Open Interest is   634,807                :
: Positions                                                                                                    :
:  525,818   461,951    25,127    93,391    76,332       664         0         0     4,013       304     2,829 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:  -43,304   -39,163    -6,308   -12,465   -21,604      -632         0         0    -1,384         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     82.8      72.8       4.0      14.7      12.0       0.1       0.0       0.0       0.6       0.0       0.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       24        25         4         .         5         .         0         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WH OFF PEAK REAL TIME OTC - ICE OTC   (Contracts of 50 Megawatt Hours)                                     :
CFTC Code #064394                                                    Open Interest is 1,641,425                :
: Positions                                                                                                    :
:1,090,518 1,337,893   269,819    94,010   115,044    61,982    12,488    67,884    24,840     2,784    11,322 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   35,073    30,109    37,525     1,154    -8,578   -34,672     3,495   -10,617    -1,568     1,600         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     66.4      81.5      16.4       5.7       7.0       3.8       0.8       4.1       1.5       0.2       0.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    64                     :
:       35        34         6         .         6         4         .         .         6         .         4 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
SP15 FIN DAYAHEAD LPM PEAK OTC - ICE OTC   (Contracts of 400 Megawatt Hours)                                   :
CFTC Code #064395                                                    Open Interest is    93,345                :
: Positions                                                                                                    :
:   63,863    70,870    12,409     4,819    16,294       129        69        48        28       615       494 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:    1,942     2,479        90      -564       683         0        47         0       -26        14       -20 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     68.4      75.9      13.3       5.2      17.5       0.1       0.1       0.1       0.0       0.7       0.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    51                     :
:       29        29         4         5         5         .         .         .         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
SP15 FIN DA LPM OFF PEAK OTC - ICE OTC   (Contracts of 25 Megawatt Hours)                                      :
CFTC Code #064396                                                    Open Interest is   654,686                :
: Positions                                                                                                    :
:  481,415   500,673   150,663   139,796     9,288     1,344     3,280         0    10,655       328     1,321 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   25,322     9,104   -14,314       376    -1,232       688         0         0    -2,216         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     73.5      76.5      23.0      21.4       1.4       0.2       0.5       0.0       1.6       0.1       0.2 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    42                     :
:       26        21         .         .         .         .         .         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                      :
CFTC Code #064657                                                    Open Interest is    66,397                :
: Positions                                                                                                    :
:   42,843    29,172       452    27,910     4,119    13,727       140     2,950       450       589       227 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -2,116    -3,643       -38      -349      -165    -1,701       -20        82         0         5        46 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.5      43.9       0.7      42.0       6.2      20.7       0.2       4.4       0.7       0.9       0.3 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    42                     :
:       26        25         .         6         7         .         .         .         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                     :
CFTC Code #06465H                                                    Open Interest is    17,817                :
: Positions                                                                                                    :
:   10,499    11,694     2,005       216     1,265       120       100     2,530         0     1,042       136 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:     -162      -677      -475       150      -270        98      -360       -58         0        94       -86 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     58.9      65.6      11.3       1.2       7.1       0.7       0.6      14.2       0.0       5.8       0.8 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       17        13         .         .         4         .         .         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
AEP DAYTON CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                :
CFTC Code #06465K                                                    Open Interest is    13,207                :
: Positions                                                                                                    :
:    5,067     9,555     1,104       252     1,570         0     1,226       280     4,190         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:     -299       245       -72      -392        -2         0       -32         0       286         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     38.4      72.3       8.4       1.9      11.9       0.0       9.3       2.1      31.7       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       10        15         .         .         4         0         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                :
CFTC Code #06465M                                                    Open Interest is    24,817                :
: Positions                                                                                                    :
:   17,977    12,378     1,046     5,788     2,502       438     2,680       400       120         0       148 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -1,428      -506      -242      -778       -42       -30      -160         0       -38         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     72.4      49.9       4.2      23.3      10.1       1.8      10.8       1.6       0.5       0.0       0.6 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    30                     :
:       20        18         .         4         6         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NORTH ILL OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                    :
CFTC Code #06465N                                                    Open Interest is     9,068                :
: Positions                                                                                                    :
:    4,551     5,814       548         0     1,109     1,150         0       226         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:     -309      -183         0         0       -79        46         0       -50         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     50.2      64.1       6.0       0.0      12.2      12.7       0.0       2.5       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       15        14         .         0         .         .         0         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
AEP DAYTON OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                   :
CFTC Code #06465O                                                    Open Interest is    12,949                :
: Positions                                                                                                    :
:    6,195     6,409       118     1,622     1,432         0     2,536       136     4,076         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:     -548       164       -34      -224         0         0      -242       -18       324         0        -6 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     47.8      49.5       0.9      12.5      11.1       0.0      19.6       1.1      31.5       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       13        13         .         .         .         0         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                  :
CFTC Code #06465S                                                    Open Interest is    13,724                :
: Positions                                                                                                    :
:    9,455     7,058     1,119     1,581     1,005       278       926       928         0     1,564        48 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:      131      -282        59       -23       -59        40         6       -46         0        26       -12 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     68.9      51.4       8.2      11.5       7.3       2.0       6.7       6.8       0.0      11.4       0.3 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       16        14         .         .         4         .         .         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                     :
CFTC Code #064A34                                                    Open Interest is    61,560                :
: Positions                                                                                                    :
:   56,324    49,982     2,498     8,840     2,738         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -2,289    -3,124       -66       769         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     91.5      81.2       4.1      14.4       4.4       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       15        12         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                  :
CFTC Code #064A35                                                    Open Interest is 1,003,370                :
: Positions                                                                                                    :
:  904,610   823,805    46,807   127,612    51,953         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:  -22,007   -34,431       -73    12,351      -711         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     90.2      82.1       4.7      12.7       5.2       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       13        13         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                   :
CFTC Code #064A56                                                    Open Interest is   105,650                :
: Positions                                                                                                    :
:   60,231   102,744    44,699     2,186       465         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -6,270    -8,197    -4,004    -2,332      -286         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     57.0      97.2      42.3       2.1       0.4       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    36                     :
:       13        23         4         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 MEGAWATT HOURS)                :
CFTC Code #064A57                                                    Open Interest is 1,463,245                :
: Positions                                                                                                    :
:  847,844 1,423,806   594,682    18,720    20,719         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
: -101,528  -130,928   -69,776   -40,376    -4,704         0         0         0    -1,960    -1,960         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     57.9      97.3      40.6       1.3       1.4       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    33                     :
:       13        20         4         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                   :
CFTC Code #064A58                                                    Open Interest is    64,768                :
: Positions                                                                                                    :
:   39,470    41,289     7,105     8,103     4,701     4,030     2,875     7,800     1,662         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -2,494    -2,098       -19      -195      -201      -110      -220         0       110         0      -110 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     60.9      63.7      11.0      12.5       7.3       6.2       4.4      12.0       2.6       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    34                     :
:       19        14         4         .         5         .         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN OFF PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                :
CFTC Code #064A59                                                    Open Interest is 1,138,460                :
: Positions                                                                                                    :
:  896,422   555,552    48,347   349,128    95,876         0    97,890    23,400    57,801         0    16,614 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:  -32,912    31,056         0   -57,696    -4,312         0    -1,960         0     4,312         0    -6,272 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     78.7      48.8       4.2      30.7       8.4       0.0       8.6       2.1       5.1       0.0       1.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       22        16         .         5         6         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENG INT HUB PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                :
CFTC Code #064A60                                                    Open Interest is    51,107                :
: Positions                                                                                                    :
:   43,703    39,952     3,595     5,090     3,661         0     1,544         0         0       308         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -3,102    -2,442       110      -660      -110         0       -22         0         0       110      -110 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     85.5      78.2       7.0      10.0       7.2       0.0       3.0       0.0       0.0       0.6       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       14        10         .         .         4         0         .         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL HUB 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                 :
CFTC Code #064A63                                                    Open Interest is    46,591                :
: Positions                                                                                                    :
:   29,595    36,031    13,542     3,445     1,275     1,480     5,735       105         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:      204    -2,134    -2,778      -660         0      -220         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     63.5      77.3      29.1       7.4       2.7       3.2      12.3       0.2       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    28                     :
:       12        14         .         .         .         .         .         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE G 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                  :
CFTC Code #064A68                                                    Open Interest is    15,750                :
: Positions                                                                                                    :
:   10,124    10,426     2,647     2,455     1,423         0         0         0       444       974       176 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:     -210      -594       -66      -110       -22         0         0         0       -66       384         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.3      66.2      16.8      15.6       9.0       0.0       0.0       0.0       2.8       6.2       1.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       13        12         .         .         .         0         0         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE J 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                  :
CFTC Code #064A69                                                    Open Interest is    12,975                :
: Positions                                                                                                    :
:    9,391     8,463     2,002     1,905     1,180         0         0         0       254     1,130         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:     -248      -248      -110       -88       -44         0         0         0       -44       -66         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     72.4      65.2      15.4      14.7       9.1       0.0       0.0       0.0       2.0       8.7       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       12         6         .         .         4         0         0         0         .         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENG HUB OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                 :
CFTC Code #064A78                                                    Open Interest is   891,992                :
: Positions                                                                                                    :
:  819,597   611,539    25,311   168,352    23,684         0        80    23,400         0    64,937         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:  -52,136   -30,968       392   -16,856      -392         0         0         0         0    -3,920         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     91.9      68.6       2.8      18.9       2.7       0.0       0.0       2.6       0.0       7.3       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       17        11         .         .         .         0         .         .         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL HUB 5 OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                 :
CFTC Code #064A79                                                    Open Interest is 1,006,241                :
: Positions                                                                                                    :
:  584,060   697,638   319,971   126,828    58,680    27,690   107,255    15,840         0         0         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   93,298    55,184    23,672    -4,704         0    -3,920    62,570    -3,920         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     58.0      69.3      31.8      12.6       5.8       2.8      10.7       1.6       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       12        10         .         .         .         .         .         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM AEP DAYTON OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                  :
CFTC Code #064A80                                                    Open Interest is   538,474                :
: Positions                                                                                                    :
:   78,356   261,644   146,895   170,625    47,365    60,770         0     7,555   146,248         0    51,285 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:  -17,475      -739    -5,880   -25,480    -1,960     1,960         0    -1,960    -4,824         0    -9,635 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     14.6      48.6      27.3      31.7       8.8      11.3       0.0       1.4      27.2       0.0       9.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        8        10         4         .         .         .         0         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders-All Futures Combined Positions as of June 5, 2012               
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE G5 MW OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                :
CFTC Code #064A84                                                    Open Interest is   147,216                :
: Positions                                                                                                    :
:   88,286    64,501    34,721    51,090    24,209         0     1,168         0         0     6,248         0 :
:                                                                                                              :
: Changes from:     May 29, 2012                                                                               :
:   -5,880    -7,056    -5,488    -3,920         0         0      -392         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     60.0      43.8      23.6      34.7      16.4       0.0       0.8       0.0       0.0       4.2       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        6         8         .         .         .         0         .         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
```

----

Updated June 8, 2012