```
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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   194,196                :
: Positions                                                                                                    :
:   87,050    84,663     2,229    19,529    65,182    17,184     3,125    18,245        64       448     2,277 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:     -478       -72      -699       629     2,423     2,210       338      -140       -10        40        41 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     44.8      43.6       1.1      10.1      33.6       8.8       1.6       9.4       0.0       0.2       1.2 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    51                     :
:       27        27         4         6         9         .         5         6         .         .         4 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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 LBMP SWAP - NEW YORK MERCANTILE EXCHANGE   (CONTRACTS 0F 400 MEGAWATT HOURS)                      :
CFTC Code #06465A                                                    Open Interest is     7,286                :
: Positions                                                                                                    :
:    5,523     3,858         0     2,093       128       212       362         0        40         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0       -20         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     75.8      53.0       0.0      28.7       1.8       2.9       5.0       0.0       0.5       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        8        11         0         .         .         .         .         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    24,129                :
: Positions                                                                                                    :
:   13,368    12,761     2,620     2,661     5,035       330       120     1,464         0       768         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:     -220      -240       136       -59      -272      -202         0       -42         0        12         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     55.4      52.9      10.9      11.0      20.9       1.4       0.5       6.1       0.0       3.2       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    30                     :
:       18        14         4         .         5         .         .         .         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    10,585                :
: Positions                                                                                                    :
:    6,694     5,870        54     1,996       577         0       720        30       601       146        38 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:       32       -58         0       -13         6         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     63.2      55.5       0.5      18.9       5.5       0.0       6.8       0.3       5.7       1.4       0.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       13        11         .         .         .         0         .         .         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    29,214                :
: Positions                                                                                                    :
:   18,783    11,104     1,566     9,080     3,758       960     3,090         0       582         0       574 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:      308      -120      -240       140       130         0         0         0        24         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     64.3      38.0       5.4      31.1      12.9       3.3      10.6       0.0       2.0       0.0       2.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       16        12         .         .         6         .         .         0         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    11,088                :
: Positions                                                                                                    :
:    7,602     6,110     1,000     2,504     1,280         0         0         0       250         0       188 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        .         .         .         .         .         .         .         .         .         .         . :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     68.6      55.1       9.0      22.6      11.5       0.0       0.0       0.0       2.3       0.0       1.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        9        11         .         .         4         0         0         0         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    11,748                :
: Positions                                                                                                    :
:    8,670     7,688       808     1,358       686         0       482       350         0       210         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:      138      -104         0         0         0         0       240         0         0      -118         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     73.8      65.4       6.9      11.6       5.8       0.0       4.1       3.0       0.0       1.8       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       16        13         .         .         4         0         .         .         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 2011              
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
CINERGY CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (40 MEGAWATT HOURS PER PEAK DAY)                   :
CFTC Code #064A01                                                    Open Interest is    22,550                :
: Positions                                                                                                    :
:   13,417    14,736     1,285     1,464     4,562         0       491       445       330         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:     -174       317        20      -167        57         0       -68        23         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     59.5      65.3       5.7       6.5      20.2       0.0       2.2       2.0       1.5       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    24                     :
:       14        12         .         4         5         0         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    46,955                :
: Positions                                                                                                    :
:   44,534    34,775     2,039    11,926         0         0         0         0         0       254         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:       41        19         0        22         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     94.8      74.1       4.3      25.4       0.0       0.0       0.0       0.0       0.0       0.5       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 July 19, 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   665,655                :
: Positions                                                                                                    :
:  620,237   437,188    39,923   218,202     5,495         0         0         0         0     4,770         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:    1,967     1,576         0       391         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     93.2      65.7       6.0      32.8       0.8       0.0       0.0       0.0       0.0       0.7       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       10         8         .         .         .         0         0         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    50,189                :
: Positions                                                                                                    :
:   27,643    34,803    20,006    12,846     2,540         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     55.1      69.3      39.9      25.6       5.1       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       10        10         4         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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   905,440                :
: Positions                                                                                                    :
:  504,597   621,600   353,883   236,880    46,960         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     55.7      68.7      39.1      26.2       5.2       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        9         8         4         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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   157,708                :
: Positions                                                                                                    :
:   86,569   126,574    65,903    27,310     2,748         0         0         0     1,201         0     1,053 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     54.9      80.3      41.8      17.3       1.7       0.0       0.0       0.0       0.8       0.0       0.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    36                     :
:       16        21         .         4         .         0         0         0         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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 2,746,810                :
: Positions                                                                                                    :
:1,524,633 2,190,333 1,168,880   467,083    35,339         0         0         0         0    36,097    17,958 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     55.5      79.7      42.6      17.0       1.3       0.0       0.0       0.0       0.0       1.3       0.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    36                     :
:       13        19         .         4         .         0         0         0         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    48,615                :
: Positions                                                                                                    :
:   32,623    41,171     9,457     2,440     1,910     1,275       820         0     2,071     1,038     1,236 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     67.1      84.7      19.5       5.0       3.9       2.6       1.7       0.0       4.3       2.1       2.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    37                     :
:       20        16         5         .         .         .         .         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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 1,409,447                :
: Positions                                                                                                    :
:  977,369 1,052,157    56,836   219,880   107,437         0         0         0   263,930    26,098     3,875 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:   23,400    47,040         0    23,400         0         0         0         0    47,040         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     69.3      74.7       4.0      15.6       7.6       0.0       0.0       0.0      18.7       1.9       0.3 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    38                     :
:       21        14         4         .         5         0         0         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    51,764                :
: Positions                                                                                                    :
:   44,815    36,301     2,420    10,656     4,254         0         0         0       105         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     86.6      70.1       4.7      20.6       8.2       0.0       0.0       0.0       0.2       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       16        15         .         4         .         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    39,156                :
: Positions                                                                                                    :
:   17,828    31,501    18,992     2,550     1,153       630         0         0         0     3,483       342 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     45.5      80.4      48.5       6.5       2.9       1.6       0.0       0.0       0.0       8.9       0.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       13         8         .         .         .         .         0         0         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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    27,691                :
: Positions                                                                                                    :
:   19,977    20,277     3,294     3,776     3,488         0        86         0       510         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:     -471      -474      -135      -112       162         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     72.1      73.2      11.9      13.6      12.6       0.0       0.3       0.0       1.8       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       12        11         .         .         .         0         .         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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 CONN OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                :
CFTC Code #064A71                                                    Open Interest is   394,304                :
: Positions                                                                                                    :
:  257,624   285,866    49,575    21,333    87,105         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     65.3      72.5      12.6       5.4      22.1       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       11         6         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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   994,386                :
: Positions                                                                                                    :
:  848,201   653,241         0   225,600   103,620    23,400    11,925         0    19,165         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     85.3      65.7       0.0      22.7      10.4       2.4       1.2       0.0       1.9       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    32                     :
:       16        18         0         5         .         .         .         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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   668,186                :
: Positions                                                                                                    :
:  293,499   529,362   269,135   124,497     3,552    47,040         0         0    44,185         0    10,775 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     43.9      79.2      40.3      18.6       0.5       7.0       0.0       0.0       6.6       0.0       1.6 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       14         6         .         .         .         .         0         0         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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   172,069                :
: Positions                                                                                                    :
:  145,883   132,672    25,418    38,629       768         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     84.8      77.1      14.8      22.4       0.4       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        9         9         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of July 19, 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 CINERGY OFF PEAK CAL MONTH - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatts Per Hour)             :
CFTC Code #064A88                                                    Open Interest is   366,040                :
: Positions                                                                                                    :
:  361,240   332,304         0    33,736         0         0         0         0     4,800         0         0 :
:                                                                                                              :
: Changes from:     July 12, 2011                                                                              :
:   18,816    18,816         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     98.7      90.8       0.0       9.2       0.0       0.0       0.0       0.0       1.3       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        9        11         0         .         0         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
```

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Updated July 22, 2011