```
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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   227,587                :
: Positions                                                                                                    :
:   89,976    77,722     1,969    27,163    80,224    14,575       154    36,686       482     2,957       924 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:    7,271     3,038       235     2,594     2,212       824       -38     2,022       -60     2,633        93 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     39.5      34.2       0.9      11.9      35.2       6.4       0.1      16.1       0.2       1.3       0.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    40                     :
:       23        22         .         7        10         .         .         4         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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    34,969                :
: Positions                                                                                                    :
:   15,666    16,496     1,021     3,756     9,746     3,260       174     3,792         0       516        50 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:      297       539       -70       -92       112       160       -30       -51         0       -30        20 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     44.8      47.2       2.9      10.7      27.9       9.3       0.5      10.8       0.0       1.5       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 20, 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    10,666                :
: Positions                                                                                                    :
:    6,878     6,326         0     1,739       458         0       858       402       487         0         8 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:       28      -188         0       -66         2      -102       138      -138         2         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.5      59.3       0.0      16.3       4.3       0.0       8.0       3.8       4.6       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       13        12         0         4         .         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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    13,588                :
: Positions                                                                                                    :
:    6,216     8,002     1,014     1,627     1,549         0       990       552     3,450         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:      421       175         0      -188       236      -394       328       345       338         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     45.7      58.9       7.5      12.0      11.4       0.0       7.3       4.1      25.4       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       11        14         .         .         .         0         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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    28,508                :
: Positions                                                                                                    :
:   17,996    12,184     2,574     8,553     2,842     1,528     2,460       260       866         0       142 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:      802       320         0      -168      -120      -720      -360       140      -168         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     63.1      42.7       9.0      30.0      10.0       5.4       8.6       0.9       3.0       0.0       0.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    29                     :
:       18        17         .         .         6         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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    11,129                :
: Positions                                                                                                    :
:    4,141     6,911       192     1,800       334     4,870         0       570         0         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:       52       148        42        40       -30        40         0        -8         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     37.2      62.1       1.7      16.2       3.0      43.8       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 20, 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    13,218                :
: Positions                                                                                                    :
:    7,433     4,036       362     4,271       830         0     2,362       150     3,334         0        14 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:      144      -112         0      -128         0         0       726         0       434         0       -18 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     56.2      30.5       2.7      32.3       6.3       0.0      17.9       1.1      25.2       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       12        11         .         .         4         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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    12,838                :
: Positions                                                                                                    :
:    9,466     6,534       804     1,691       918         0     1,572       550         0       582        24 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:       28      -180         0         0         0         0       240         0         0       -72         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     73.7      50.9       6.3      13.2       7.2       0.0      12.2       4.3       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 20, 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    68,921                :
: Positions                                                                                                    :
:   63,375    57,282     2,892     9,006     2,633         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:    1,103     1,616       303      -210        83         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     92.0      83.1       4.2      13.1       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 20, 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 1,084,209                :
: Positions                                                                                                    :
:  988,561   880,278    42,984   151,267    52,664         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:   13,352    12,992         0       360         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     91.2      81.2       4.0      14.0       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 20, 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 13, 2011                                                                          :
:        .         .         .         .         .         .         .         .         .         .         . :
:                                                                                                              :
: 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 20, 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   315,637                :
: Positions                                                                                                    :
:  314,821   214,048       816   101,589         0         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:        0         0         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 20, 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 13, 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 20, 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 13, 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 20, 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   124,113                :
: Positions                                                                                                    :
:   72,424   106,964    49,871    15,691     1,458         0         0         0       105         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     58.4      86.2      40.2      12.6       1.2       0.0       0.0       0.0       0.1       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       13        24         .         .         .         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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 2,006,078                :
: Positions                                                                                                    :
:1,092,064 1,720,265   881,818   257,697    28,116         0         0         0     4,080         0         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     54.4      85.8      44.0      12.8       1.4       0.0       0.0       0.0       0.2       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    39                     :
:       12        22         4         4         .         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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    61,426                :
: Positions                                                                                                    :
:   39,579    40,196     6,754     6,387     3,081     2,214     3,070     8,136     1,275       169       387 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:    1,191       981      -210         0       210         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.4      65.4      11.0      10.4       5.0       3.6       5.0      13.2       2.1       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 20, 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 1,199,254                :
: Positions                                                                                                    :
:  933,595   525,260    44,427   431,119   160,395    14,112    37,365         0    23,400    21,790    23,325 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:   23,216   -27,579         0    27,275         0         0         0         0    -3,770    19,750     3,770 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     77.8      43.8       3.7      35.9      13.4       1.2       3.1       0.0       2.0       1.8       1.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       22        17         .         5         5         .         .         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of December 20, 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 13, 2011                                                                          :
:      255       255         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 20, 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 13, 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 20, 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 13, 2011                                                                          :
:      703       703         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 20, 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 13, 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 20, 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    17,973                :
: Positions                                                                                                    :
:   11,061    10,957     3,573     3,707     1,766         0     1,179        21       765        88         0 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:       -1        -1         6         6       -12         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 20, 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 13, 2011                                                                          :
:    5,925         0         0         0         0         0         0         0         0     5,925         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 20, 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 13, 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 20, 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 13, 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 20, 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    13,230                :
: Positions                                                                                                    :
:    4,371     7,066     2,341       226     4,564       614       254     1,055       235         0        49 :
:                                                                                                              :
: Changes from:     December 13, 2011                                                                          :
:      224       498       105        -7       303       138       -17        24         2         0        -4 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     33.0      53.4      17.7       1.7      34.5       4.6       1.9       8.0       1.8       0.0       0.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       10        14         5         .         6         .         .         4         .         0         . :
----------------------------------------------------------------------------------------------------------------
```

----

Updated December 23, 2011