```
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                      :
CFTC Code #064657                                                    Open Interest is   231,788                :
: Positions                                                                                                    :
:  106,873   103,397       858    18,994    71,283    15,345         0    33,773       272     2,099       682 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      633     1,596         0       467      -121     1,278         0      -786       148        -1        66 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     46.1      44.6       0.4       8.2      30.8       6.6       0.0      14.6       0.1       0.9       0.3 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       22        22         .         6         7         4         0         4         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                     :
CFTC Code #06465H                                                    Open Interest is    36,553                :
: Positions                                                                                                    :
:   17,874    17,632       589     5,332     8,491     3,980       110     4,059         0       200       244 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:       71        82        -8        -6        23        13        10         5         0       -10         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     48.9      48.2       1.6      14.6      23.2      10.9       0.3      11.1       0.0       0.5       0.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       17        16         .         .         4         .         .         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NORTH ILL CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                 :
CFTC Code #06465I                                                    Open Interest is     9,491                :
: Positions                                                                                                    :
:    6,759     4,840         0     2,352       136         4       680       356       396         0         8 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      206         0         0        38         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     71.2      51.0       0.0      24.8       1.4       0.0       7.2       3.8       4.2       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       14        10         0         .         .         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
AEP DAYTON CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                :
CFTC Code #06465K                                                    Open Interest is    13,700                :
: Positions                                                                                                    :
:    6,063     9,189     1,361     1,228     1,348         0     1,075       507     3,712         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:       -0         0         4         0        -1         0         2        -1         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     44.3      67.1       9.9       9.0       9.8       0.0       7.9       3.7      27.1       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       10        13         4         .         4         0         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                :
CFTC Code #06465M                                                    Open Interest is    28,801                :
: Positions                                                                                                    :
:   21,082    12,524     1,772     9,704     1,824       538     3,430       330     1,082         0        30 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      152      -254         0       574      -402         0         0         0        48         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     73.2      43.5       6.2      33.7       6.3       1.9      11.9       1.1       3.8       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    30                     :
:       19        17         .         4         5         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NORTH ILL OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                    :
CFTC Code #06465N                                                    Open Interest is    10,189                :
: Positions                                                                                                    :
:    5,808     6,489       548       136     1,170     1,202         0       240         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:       24         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     57.0      63.7       5.4       1.3      11.5      11.8       0.0       2.4       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       16        13         .         .         .         .         0         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                  :
CFTC Code #06465S                                                    Open Interest is    12,828                :
: Positions                                                                                                    :
:    8,996     6,274     1,014     1,662       966         0     1,882       400         0       576         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      110      -100         0       -30         0         0         0         0         0       160         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     70.1      48.9       7.9      13.0       7.5       0.0      14.7       3.1       0.0       4.5       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       14        11         .         .         .         0         .         .         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                     :
CFTC Code #064A34                                                    Open Interest is    66,564                :
: Positions                                                                                                    :
:   61,222    55,994     2,648     7,876     2,694         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      408       408         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     92.0      84.1       4.0      11.8       4.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       16        13         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                  :
CFTC Code #064A35                                                    Open Interest is 1,046,984                :
: Positions                                                                                                    :
:  949,024   859,323    45,296   134,997    52,664         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:    7,848     7,448         0       400         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     90.6      82.1       4.3      12.9       5.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       14        12         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM PSEG PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                      :
CFTC Code #064A54                                                    Open Interest is    35,215                :
: Positions                                                                                                    :
:   28,700    16,513     6,515    18,702         0         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     81.5      46.9      18.5      53.1       0.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       12        11         .         4         0         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM PSEG OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                   :
CFTC Code #064A55                                                    Open Interest is   634,289                :
: Positions                                                                                                    :
:  523,424   291,489   110,865   342,800         0         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     82.5      46.0      17.5      54.0       0.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       11         9         .         4         0         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                   :
CFTC Code #064A56                                                    Open Interest is   127,812                :
: Positions                                                                                                    :
:   69,167   117,761    57,670     9,076       975         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:    2,755     2,755         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     54.1      92.1      45.1       7.1       0.8       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       12        23         4         4         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN OFF PEAK DAY AHEAD - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 MEGAWATT HOURS)                :
CFTC Code #064A57                                                    Open Interest is 1,825,150                :
: Positions                                                                                                    :
:  985,250 1,672,225   825,896   138,921    14,004         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:   34,032    34,032         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     54.0      91.6      45.3       7.6       0.8       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    35                     :
:       10        20         4         4         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                   :
CFTC Code #064A58                                                    Open Interest is    68,269                :
: Positions                                                                                                    :
:   44,468    43,032     5,680     8,288     5,044     3,615     3,525     7,800     1,337         0       325 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     65.1      63.0       8.3      12.1       7.4       5.3       5.2      11.4       2.0       0.0       0.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    34                     :
:       19        14         5         .         4         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM WESTERN OFF PEAK REAL TIME - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                :
CFTC Code #064A59                                                    Open Interest is 1,215,461                :
: Positions                                                                                                    :
:  960,925   515,705    48,347   422,289   118,931     1,173   127,125         0    62,760     8,086    23,325 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     79.1      42.4       4.0      34.7       9.8       0.1      10.5       0.0       5.2       0.7       1.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    39                     :
:       21        17         .         5         6         .         .         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENG INT HUB PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                :
CFTC Code #064A60                                                    Open Interest is    47,491                :
: Positions                                                                                                    :
:   41,461    34,290     1,953     8,204     3,458         0       339         0         0       880       320 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:        0         0         0         0         0         0         0         0         0         0       105 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     87.3      72.2       4.1      17.3       7.3       0.0       0.7       0.0       0.0       1.9       0.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    28                     :
:       15        11         .         .         4         0         .         0         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL HUB 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                 :
CFTC Code #064A63                                                    Open Interest is    51,112                :
: Positions                                                                                                    :
:   30,606    41,446    17,782     6,522         0     2,130     2,550         0         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      387       255         0       132         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     59.9      81.1      34.8      12.8       0.0       4.2       5.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       11        13         .         .         0         .         .         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE G 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                  :
CFTC Code #064A68                                                    Open Interest is    14,776                :
: Positions                                                                                                    :
:    8,613     9,944     2,836     2,764     1,510         0         0         0       683         0       132 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:       -1        -1         0         1        -1         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     58.3      67.3      19.2      18.7      10.2       0.0       0.0       0.0       4.6       0.0       0.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       12        11         .         .         .         0         0         0         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE J 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                  :
CFTC Code #064A69                                                    Open Interest is    12,669                :
: Positions                                                                                                    :
:    8,222     7,507     2,370     2,165     1,310         0         0         0       341     1,325         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      255         0         0       255         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.9      59.3      18.7      17.1      10.3       0.0       0.0       0.0       2.7      10.5       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       11         4         .         .         4         0         0         0         .         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
ISO NEW ENG HUB OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                 :
CFTC Code #064A78                                                    Open Interest is   809,385                :
: Positions                                                                                                    :
:  759,622   516,133         0   225,661    25,595    23,400         0         0       768    41,996         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:    1,185         0         0         0         0         0         0         0       768     1,953         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     93.9      63.8       0.0      27.9       3.2       2.9       0.0       0.0       0.1       5.2       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       16        12         0         4         .         .         0         0         .         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM N ILL HUB 5 OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                 :
CFTC Code #064A79                                                    Open Interest is   892,754                :
: Positions                                                                                                    :
:  413,555   675,717   342,144   140,832    58,560    60,850         0    17,645         0         0         0 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:    4,664     4,664         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     46.3      75.7      38.3      15.8       6.6       6.8       0.0       2.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       10        12         .         .         .         .         0         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of March 13, 2012             
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM ELEC OPT ON CALENDAR STRIP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)               :
CFTC Code #064B47                                                    Open Interest is     7,855                :
: Positions                                                                                                    :
:    3,426     4,766     1,283       305     2,426       203         0       222       154         0       128 :
:                                                                                                              :
: Changes from:     March 6, 2012                                                                              :
:      -69       -53        -6        26       -20        63         0        26         2         0        -8 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     43.6      60.7      16.3       3.9      30.9       2.6       0.0       2.8       2.0       0.0       1.6 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       11        15         4         .         5         .         0         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
```

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Updated March 16, 2012