```
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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   238,338                :
: Positions                                                                                                    :
:   98,097   100,316     3,831    18,402    79,354    17,792       152    35,366       433     2,117       908 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:    8,121    22,595     1,862    -8,762      -869     3,217        -2    -1,320       -49      -840       -16 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     41.2      42.1       1.6       7.7      33.3       7.5       0.1      14.8       0.2       0.9       0.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    41                     :
:       24        23         .         7        10         .         .         4         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    34,318                :
: Positions                                                                                                    :
:   15,553    16,165     1,050     3,555     9,509     3,029       294     3,694         0       576        50 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:     -114      -330        29      -201      -237      -231       120       -98         0        60         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     45.3      47.1       3.1      10.4      27.7       8.8       0.9      10.8       0.0       1.7       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    32                     :
:       18        18         4         .         5         .         .         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                 :
CFTC Code #06465I                                                    Open Interest is    10,562                :
: Positions                                                                                                    :
:    6,618     6,296         0     1,715       460         0       858       402       487         0         8 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:     -260       -30         0       -24         2         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     62.7      59.6       0.0      16.2       4.4       0.0       8.1       3.8       4.6       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       12        11         0         4         .         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    13,846                :
: Positions                                                                                                    :
:    6,552     8,894     1,014     1,603     1,453         0     1,146       546     3,354         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:      336       892         0       -24       -96         0       156        -6       -96         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     47.3      64.2       7.3      11.6      10.5       0.0       8.3       3.9      24.2       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       11        15         .         .         .         0         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    28,746                :
: Positions                                                                                                    :
:   18,622    13,204     2,886     8,049     2,848       568     2,460       260     1,086         0       142 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:      626     1,020       312      -504         6      -960         0         0       220         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.8      45.9      10.0      28.0       9.9       2.0       8.6       0.9       3.8       0.0       0.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    29                     :
:       18        17         .         4         7         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    11,099                :
: Positions                                                                                                    :
:    4,087     6,881       216     1,800       334     4,870         0       570         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:      -54       -30        24         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     36.8      62.0       1.9      16.2       3.0      43.9       0.0       5.1       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       15        14         .         .         4         .         0         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    13,378                :
: Positions                                                                                                    :
:    7,485     4,980       362     4,151       830         0     2,362       150     3,282         0        14 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:       52       944         0      -120         0         0         0         0       -52         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     56.0      37.2       2.7      31.0       6.2       0.0      17.7       1.1      24.5       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       13        13         .         .         4         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    12,962                :
: Positions                                                                                                    :
:    9,590     6,662       828     1,691       894         0     1,596       550         0       582        24 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:      124       128        24         0       -24         0        24         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     74.0      51.4       6.4      13.0       6.9       0.0      12.3       4.2       0.0       4.5       0.2 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       17        12         .         4         4         0         .         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    69,029                :
: Positions                                                                                                    :
:   63,483    57,390     2,892     9,006     2,633         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:      108       108         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     92.0      83.1       4.2      13.0       3.8       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    28                     :
:       17        15         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 1,084,600                :
: Positions                                                                                                    :
:  988,952   880,669    42,984   151,267    52,664         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:      391       391         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     91.2      81.2       4.0      13.9       4.9       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    28                     :
:       17        13         .         4         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                       :
CFTC Code #064A38                                                    Open Interest is    37,196                :
: Positions                                                                                                    :
:   22,664    13,534    13,281         0     1,104         0         0         0       147    22,558         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     60.9      36.4      35.7       0.0       3.0       0.0       0.0       0.0       0.4      60.6       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       11         7         .         0         .         0         0         0         .         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM PPL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                    :
CFTC Code #064A53                                                    Open Interest is   315,229                :
: Positions                                                                                                    :
:  314,413   213,640       816   101,589         0         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:     -408      -408         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     99.7      67.8       0.3      32.2       0.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       10         8         .         .         0         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM PSEG PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                      :
CFTC Code #064A54                                                    Open Interest is    35,907                :
: Positions                                                                                                    :
:   23,743    22,625    10,240    11,358     1,924         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     66.1      63.0      28.5      31.6       5.4       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       11        10         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM PSEG OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                   :
CFTC Code #064A55                                                    Open Interest is   659,481                :
: Positions                                                                                                    :
:  438,936   415,769   187,440   210,607    33,105         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     66.6      63.0      28.4      31.9       5.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       11         9         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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   123,462                :
: Positions                                                                                                    :
:   71,773   106,313    49,871    15,691     1,458         0         0         0       105         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:     -651      -651         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     58.1      86.1      40.4      12.7       1.2       0.0       0.0       0.0       0.1       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       13        23         .         .         .         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 50 MEGAWATT HOURS)               :
CFTC Code #064A57                                                    Open Interest is 1,992,662                :
: Positions                                                                                                    :
:1,078,648 1,706,849   881,818   257,697    28,116         0         0         0     4,080         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:  -13,416   -13,416         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     54.1      85.7      44.3      12.9       1.4       0.0       0.0       0.0       0.2       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    39                     :
:       12        21         4         4         .         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    62,701                :
: Positions                                                                                                    :
:   39,579    40,196     6,754     6,387     3,081     3,489     4,345     8,136     1,275       169       387 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0     1,275     1,275         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     63.1      64.1      10.8      10.2       4.9       5.6       6.9      13.0       2.0       0.3       0.6 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       22        17         5         .         5         .         .         .         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 1,222,654                :
: Positions                                                                                                    :
:  933,595   525,260    44,427   431,119   160,395    14,112    37,365    23,400    23,400    21,790    23,325 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0    23,400         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     76.4      43.0       3.6      35.3      13.1       1.2       3.1       1.9       1.9       1.8       1.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    39                     :
:       22        17         .         5         5         .         .         .         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    51,654                :
: Positions                                                                                                    :
:   47,581    37,034     1,890    11,413     2,162         0       381         0         0       409         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     92.1      71.7       3.7      22.1       4.2       0.0       0.7       0.0       0.0       0.8       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       17        13         .         4         .         0         .         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
MW IND TR REAL TIME PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                :
CFTC Code #064A61                                                    Open Interest is    24,962                :
: Positions                                                                                                    :
:   20,570    10,682     3,888     8,970       210         0     4,806       294         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     82.4      42.8      15.6      35.9       0.8       0.0      19.3       1.2       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       10         7         .         .         .         0         .         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    56,104                :
: Positions                                                                                                    :
:   33,945    48,244    19,084     5,100       210     2,550     2,340       210         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     60.5      86.0      34.0       9.1       0.4       4.5       4.2       0.4       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    30                     :
:       14        16         .         .         .         .         .         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 DAY HUB 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)               :
CFTC Code #064A64                                                    Open Interest is    42,208                :
: Positions                                                                                                    :
:   10,936    21,402     9,291    17,595       441     1,265         0     2,560    17,250         0       210 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     25.9      50.7      22.0      41.7       1.0       3.0       0.0       6.1      40.9       0.0       0.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:        9        13         .         .         .         .         0         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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    17,979                :
: Positions                                                                                                    :
:   11,063    10,963     3,573     3,704     1,770         0     1,179        21       765        88         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        3         5        -1        -3         4         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     61.5      61.0      19.9      20.6       9.8       0.0       6.6       0.1       4.3       0.5       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       11        10         .         .         .         0         .         .         .         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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   921,258                :
: Positions                                                                                                    :
:  857,575   585,071         0   254,053    39,059    23,400     2,040         0         0    39,811     1,224 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     93.1      63.5       0.0      27.6       4.2       2.5       0.2       0.0       0.0       4.3       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    31                     :
:       18        16         0         5         .         .         .         0         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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   977,452                :
: Positions                                                                                                    :
:  449,525   777,244   383,352   151,368    48,840    95,735         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     46.0      79.5      39.2      15.5       5.0       9.8       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       13        14         .         .         .         .         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             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 A 5MW OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                :
CFTC Code #064A82                                                    Open Interest is   119,845                :
: Positions                                                                                                    :
:  117,411    75,664       816    40,523     1,618         0         0         0         0     2,040         0 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     98.0      63.1       0.7      33.8       1.4       0.0       0.0       0.0       0.0       1.7       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        9         8         .         .         .         0         0         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 27, 2011          
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM ELEC OPT ON CALENDAR STRIP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)               :
CFTC Code #064B47                                                    Open Interest is     5,178                :
: Positions                                                                                                    :
:    1,472     2,951     1,114         0     1,995       213         0       180       145         0        51 :
:                                                                                                              :
: Changes from:     December 20, 2011                                                                          :
:   -2,899    -4,115    -1,227      -226    -2,569      -401      -254      -875       -90         0         2 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     28.4      57.0      21.5       0.0      38.5       4.1       0.0       3.5       2.8       0.0       1.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:        8        10         6         0         6         .         0         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
```

----

Updated December 30, 2011