```
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
CENTRAL APPALACHIAN COAL - NEW YORK MERCANTILE EXCHANGE   (CONTRACTS OF 1,550 TONS)                            :
CFTC Code #024651                                                    Open Interest is     7,084                :
: Positions                                                                                                    :
:    4,730     4,559        44       885       450     1,020         0         0         0       120        75 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:     -480      -249       -44       -60        75       120         0         0         0        45         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     66.8      64.4       0.6      12.5       6.4      14.4       0.0       0.0       0.0       1.7       1.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       11        12         .         .         .         .         0         0         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
COAL (API 2) CIF ARA SWAP FUT - NEW YORK MERCANTILE EXCHANGE   (CONTRACTS OF 1,000 METRIC TONS)                :
CFTC Code #024656                                                    Open Interest is    13,896                :
: Positions                                                                                                    :
:    3,032     1,705       697       447       353         0     1,215     1,945     4,728     5,633     1,881 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:     -198       214       110        30       -95         0      -100       425      -118       202      -370 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     21.8      12.3       5.0       3.2       2.5       0.0       8.7      14.0      34.0      40.5      13.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:        .         .         .         .         .         0         4         4         5        13        14 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
COAL (API 4) FOB  RICH BAY FUT - NEW YORK MERCANTILE EXCHANGE   (CONTRACTS OF 1,000 METRIC TONS)               :
CFTC Code #024658                                                    Open Interest is     6,125                :
: Positions                                                                                                    :
:    1,300     1,910         0        45       150       255       375       290     2,625     1,745     1,080 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      205        35         0      -135        30       -40       330      -105        10        55       -35 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     21.2      31.2       0.0       0.7       2.4       4.2       6.1       4.7      42.9      28.5      17.6 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        4         4         0         .         .         .         .         .         .         9        10 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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   166,281                :
: Positions                                                                                                    :
:   85,326    69,849       132    22,028    48,902     5,541         0    23,037       851        71       837 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      757       941         0       -73     1,306       161         0       358        -1        14       -21 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     51.3      42.0       0.1      13.2      29.4       3.3       0.0      13.9       0.5       0.0       0.5 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    43                     :
:       29        27         .         6         7         .         0         .         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    26,980                :
: Positions                                                                                                    :
:   13,552    14,454       693     2,521     5,623     2,605         0     3,072         0       618       192 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      155      -669        43       315      -388      -439         0       -47         0       108       -80 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     50.2      53.6       2.6       9.3      20.8       9.7       0.0      11.4       0.0       2.3       0.7 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       16        13         .         .         4         .         0         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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     8,517                :
: Positions                                                                                                    :
:    6,477     3,811         0     2,004       117         0     1,180        28       264         0         8 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:       70       -14         0         0         0         0        60         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     76.0      44.7       0.0      23.5       1.4       0.0      13.9       0.3       3.1       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       14        12         0         .         .         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    13,250                :
: Positions                                                                                                    :
:    5,614    10,454     1,072        64     1,528       284       243       695     3,294         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:       -0      -240         0         0         0        30        -0       -30      -270         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     42.4      78.9       8.1       0.5      11.5       2.1       1.8       5.2      24.9       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       12        16         5         .         5         .         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    23,064                :
: Positions                                                                                                    :
:   16,062    13,416       662     3,352     2,978       268     1,880       520       284         0        18 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     69.6      58.2       2.9      14.5      12.9       1.2       8.2       2.3       1.2       0.0       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    32                     :
:       21        19         .         5         6         .         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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     8,759                :
: Positions                                                                                                    :
:    4,517     5,602       304         0     1,138     1,194         0       116         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      -52        52         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     51.6      64.0       3.5       0.0      13.0      13.6       0.0       1.3       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       14        14         .         0         .         .         0         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
AEP DAYTON OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE   (2.5 MEGAWATTS PER OFF PEAK HRS)                   :
CFTC Code #06465O                                                    Open Interest is    12,019                :
: Positions                                                                                                    :
:    5,761     6,107        50     1,090     1,472         0     2,406       130     3,230         0        24 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0      -240         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     47.9      50.8       0.4       9.1      12.2       0.0      20.0       1.1      26.9       0.0       0.2 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       13        13         .         .         .         0         .         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    12,586                :
: Positions                                                                                                    :
:    8,339     6,768     1,267     1,245       857       298       874       840         0     1,714         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:       98        24         0         0         0         0         0         0         0       198         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     66.3      53.8      10.1       9.9       6.8       2.4       6.9       6.7       0.0      13.6       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    23                     :
:       14        12         .         .         4         .         .         .         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    56,319                :
: Positions                                                                                                    :
:   50,742    45,665     2,714     7,791     2,863         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      128       108         0        20         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     90.1      81.1       4.8      13.8       5.1       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       17        12         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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   933,563                :
: Positions                                                                                                    :
:  831,238   772,591    52,517   111,164    49,808         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     89.0      82.8       5.6      11.9       5.3       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       13        14         .         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    25,151                :
: Positions                                                                                                    :
:   24,941    11,072       210    14,079         0         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     99.2      44.0       0.8      56.0       0.0       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       12         7         .         .         0         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    93,717                :
: Positions                                                                                                    :
:   54,595    91,613    38,402     1,426       465         0         0         0         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     58.3      97.8      41.0       1.5       0.5       0.0       0.0       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    36                     :
:       13        24         4         .         .         0         0         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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 1,286,634                :
: Positions                                                                                                    :
:  784,361 1,256,439   479,674     9,476    20,719         0         0         0     1,880         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     61.0      97.7      37.3       0.7       1.6       0.0       0.0       0.0       0.1       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    36                     :
:       14        21         4         .         .         0         0         0         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    66,043                :
: Positions                                                                                                    :
:   40,815    41,639     7,783     9,933     5,046     1,720       135     9,290     1,389         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     61.8      63.0      11.8      15.0       7.6       2.6       0.2      14.1       2.1       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    36                     :
:       22        16         4         .         5         .         .         .         .         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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 1,242,830                :
: Positions                                                                                                    :
:1,042,638   609,292    45,971   408,336    96,269         0   111,290         0    40,309         0    17,643 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     83.9      49.0       3.7      32.9       7.7       0.0       9.0       0.0       3.2       0.0       1.4 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    39                     :
:       22        18         .         5         6         0         .         0         4         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    50,185                :
: Positions                                                                                                    :
:   38,957    38,459     8,090     4,250     3,032         0     2,268         0         0     1,666         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     77.6      76.6      16.1       8.5       6.0       0.0       4.5       0.0       0.0       3.3       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       14        10         .         .         4         0         .         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
MW IND TR REAL TIME PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                :
CFTC Code #064A61                                                    Open Interest is    23,332                :
: Positions                                                                                                    :
:   16,321    11,876     5,755     4,361     1,150         0     5,945         0         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:    1,180     1,180       200         0      -200         0       200      -200         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     70.0      50.9      24.7      18.7       4.9       0.0      25.5       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:       10         9         .         .         .         0         .         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    40,773                :
: Positions                                                                                                    :
:   26,792    31,788    10,354     1,340     2,015     1,060     5,630         0         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      724       724         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     65.7      78.0      25.4       3.3       4.9       2.6      13.8       0.0       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    29                     :
:       13        15         .         .         .         .         .         0         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM AEP DAY HUB 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)               :
CFTC Code #064A64                                                    Open Interest is    26,748                :
: Positions                                                                                                    :
:    6,756    16,394     4,681     7,077     2,747     4,140         0         0     7,894         0       530 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     25.3      61.3      17.5      26.5      10.3      15.5       0.0       0.0      29.5       0.0       2.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        6        12         .         .         .         .         0         0         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE G 5 MW PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 80 Megawatt Hours)                  :
CFTC Code #064A68                                                    Open Interest is    15,871                :
: Positions                                                                                                    :
:   10,715    10,022     2,121     2,632     1,804         0         0         0       318     1,182        19 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:       -1        -2         0         1        -1         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     67.5      63.1      13.4      16.6      11.4       0.0       0.0       0.0       2.0       7.4       0.1 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    26                     :
:       13        12         .         .         .         0         0         0         .         .         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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    12,758                :
: Positions                                                                                                    :
:    9,169     8,325     2,407     2,352       906         0         0         0       170       920         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     71.9      65.3      18.9      18.4       7.1       0.0       0.0       0.0       1.3       7.2       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       12         6         .         .         .         0         0         0         .         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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   841,900                :
: Positions                                                                                                    :
:  691,389   608,944   105,028   134,296    22,083         0        80    23,400         0    53,097         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     82.1      72.3      12.5      16.0       2.6       0.0       0.0       2.8       0.0       6.3       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    27                     :
:       18        11         .         .         .         0         .         .         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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   978,868                :
: Positions                                                                                                    :
:  623,811   682,014   274,807   117,324    52,560    19,770   119,050     7,920         0         0         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:    9,360     9,360         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     63.7      69.7      28.1      12.0       5.4       2.0      12.2       0.8       0.0       0.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    25                     :
:       13        12         .         .         .         .         .         .         0         0         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
PJM AEP DAYTON OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                  :
CFTC Code #064A80                                                    Open Interest is   548,181                :
: Positions                                                                                                    :
:  132,900   288,364   128,895   100,289    71,957    75,850         0     7,715    51,008         0    79,856 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:   23,400         0         0         0         0         0         0         0   -23,400         0    23,400 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     24.2      52.6      23.5      18.3      13.1      13.8       0.0       1.4       9.3       0.0      14.6 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    22                     :
:       11        11         4         .         .         .         0         .         .         0         . :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 2012            
:                                             Reportable Positions                                             :
:------------------------------------------------------------------------------------------------------------- :
: Producer/Merchant :                             :                             :                              :
:  Processor/User   :        Swap Dealers         :        Managed Money        :      Other Reportables       :
:   Long  :  Short  :   Long  :  Short  :Spreading:   Long  :  Short  :Spreading:   Long  :  Short  :Spreading :
----------------------------------------------------------------------------------------------------------------
NYISO ZONE G5 MW OFF PEAK SWAP - NEW YORK MERCANTILE EXCHANGE   (Contracts of 5 Megawatt Hours)                :
CFTC Code #064A84                                                    Open Interest is   137,456                :
: Positions                                                                                                    :
:   89,614    54,909    29,240    58,137    18,602         0       376         0         0     5,432         0 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:        0         0         0         0         0         0         0         0         0         0         0 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     65.2      39.9      21.3      42.3      13.5       0.0       0.3       0.0       0.0       4.0       0.0 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    20                     :
:        6         8         .         .         .         0         .         0         0         .         0 :
----------------------------------------------------------------------------------------------------------------
Disaggregated Commitments of Traders- Options and Futures Combined Positions as of August 21, 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     9,305                :
: Positions                                                                                                    :
:    3,991     6,016     1,805         0     2,965       253         0       184         0        51        87 :
:                                                                                                              :
: Changes from:     August 14, 2012                                                                            :
:      -73        -1        62         0        -5        -5         0         1         0       -15         9 :
:                                                                                                              :
: Percent of Open Interest Represented by Each Category of Trader                                              :
:     42.9      64.7      19.4       0.0      31.9       2.7       0.0       2.0       0.0       0.5       0.9 :
:                                                                                                              :
: Number of Traders in Each Category                                  Total Traders:    21                     :
:       11        13         5         0         5         .         0         .         0         .         . :
----------------------------------------------------------------------------------------------------------------
```

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Updated August 24, 2012