```
NATURAL GAS ICE HENRY HUB - ICE OTC                                                                     Code-023391
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  : 4,656,086:   362,564    139,480  1,769,354  2,492,091  2,728,308  4,624,009  4,637,142:    32,077     18,944
Old  : 4,656,086:   362,564    139,480  1,769,354  2,492,091  2,728,308  4,624,009  4,637,142:    32,077     18,944
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :    28,877:    77,978    -34,203    -56,657     11,052    128,915     32,373     38,055:    -3,496     -9,178
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       7.8        3.0       38.0       53.5       58.6       99.3       99.6:       0.7        0.4
Old  :     100.0:       7.8        3.0       38.0       53.5       58.6       99.3       99.6:       0.7        0.4
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :       222:        40         31         69        134        134        207        205:
Old  :       222:        40         31         69        134        134        207        205:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 23.5       26.7       37.7       41.1       10.0       16.1       15.3       22.3
Old  :                 23.5       26.7       37.7       41.1       10.0       16.1       15.3       22.3
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
SOCAL BORDER FIN BASIS - ICE OTC                                                                        Code-023393
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   370,031:     7,444     25,367     24,018    322,753    318,866    354,215    368,251:    15,816      1,780
Old  :   370,031:     7,444     25,367     24,018    322,753    318,866    354,215    368,251:    15,816      1,780
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :    -6,607:    -1,430      1,609     -1,108     -1,005     -2,597     -3,543     -2,096:    -3,064     -4,511
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       2.0        6.9        6.5       87.2       86.2       95.7       99.5:       4.3        0.5
Old  :     100.0:       2.0        6.9        6.5       87.2       86.2       95.7       99.5:       4.3        0.5
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        59:         6          6         10         45         38         56         49:
Old  :        59:         6          6         10         45         38         56         49:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 29.3       47.7       48.1       69.8       22.7       30.2       32.8       38.8
Old  :                 29.3       47.7       48.1       69.8       22.7       30.2       32.8       38.8
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
PG&E CITYGATE FIN BASIS - ICE OTC                                                                       Code-023394
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   184,613:     3,029      2,456      7,007    169,481    171,250    179,517    180,713:     5,096      3,900
Old  :   184,613:     3,029      2,456      7,007    169,481    171,250    179,517    180,713:     5,096      3,900
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :    -1,560:     1,400     -1,059       -307     -2,680      1,705     -1,587        339:        27     -1,899
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       1.6        1.3        3.8       91.8       92.8       97.2       97.9:       2.8        2.1
Old  :     100.0:       1.6        1.3        3.8       91.8       92.8       97.2       97.9:       2.8        2.1
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        42:         4          1          5         33         33         38         38:
Old  :        42:         4          1          5         33         33         38         38:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 51.0       41.2       70.1       62.9       47.0       38.2       60.4       54.0
Old  :                 51.0       41.2       70.1       62.9       47.0       38.2       60.4       54.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
NWP ROCKIES FIN BASIS - ICE OTC                                                                         Code-023395
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   313,191:    28,706      6,578      4,121    272,812    296,581    305,639    307,280:     7,552      5,911
Old  :   313,191:    28,706      6,578      4,121    272,812    296,581    305,639    307,280:     7,552      5,911
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :     1,654:     2,515     -3,819        -78       -381      6,693      2,056      2,796:      -402     -1,142
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       9.2        2.1        1.3       87.1       94.7       97.6       98.1:       2.4        1.9
Old  :     100.0:       9.2        2.1        1.3       87.1       94.7       97.6       98.1:       2.4        1.9
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        46:         3          3          4         35         33         40         38:
Old  :        46:         3          3          4         35         33         40         38:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 45.4       46.4       65.5       72.6       43.5       41.3       60.4       64.4
Old  :                 45.4       46.4       65.5       72.6       43.5       41.3       60.4       64.4
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
AECO FIN BASIS - ICE OTC                                                                                Code-023396
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   715,248:     1,588     54,269     42,073    665,321    612,786    708,982    709,128:     6,266      6,120
Old  :   715,248:     1,588     54,269     42,073    665,321    612,786    708,982    709,128:     6,266      6,120
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :     6,445:    -3,906     17,720     -9,405     21,651        943      8,340      9,258:    -1,895     -2,813
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       0.2        7.6        5.9       93.0       85.7       99.1       99.1:       0.9        0.9
Old  :     100.0:       0.2        7.6        5.9       93.0       85.7       99.1       99.1:       0.9        0.9
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        68:         1          9          9         56         46         65         56:
Old  :        68:         1          9          9         56         46         65         56:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 37.6       37.9       53.1       54.4       26.3       27.1       40.3       37.8
Old  :                 37.6       37.9       53.1       54.4       26.3       27.1       40.3       37.8
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
CHICAGO FIN BASIS - ICE OTC                                                                             Code-023397
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   182,099:     9,778        460      2,635    163,683    168,705    176,096    171,800:     6,003     10,299
Old  :   182,099:     9,778        460      2,635    163,683    168,705    176,096    171,800:     6,003     10,299
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :     1,699:       116       -363        942      2,654      1,876      3,712      2,455:    -2,013       -756
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       5.4        0.3        1.4       89.9       92.6       96.7       94.3:       3.3        5.7
Old  :     100.0:       5.4        0.3        1.4       89.9       92.6       96.7       94.3:       3.3        5.7
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        37:         3          1          3         30         22         34         25:
Old  :        37:         3          1          3         30         22         34         25:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 47.1       66.1       62.1       80.1       45.2       62.9       59.3       71.0
Old  :                 47.1       66.1       62.1       80.1       45.2       62.9       59.3       71.0
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
HSC FIN BASIS - ICE OTC                                                                                 Code-023398
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   327,711:    16,988     56,800     12,503    286,845    247,474    316,336    316,777:    11,375     10,934
Old  :   327,711:    16,988     56,800     12,503    286,845    247,474    316,336    316,777:    11,375     10,934
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :     4,499:      -816     -6,803      4,875      1,626      8,657      5,685      6,729:    -1,186     -2,230
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       5.2       17.3        3.8       87.5       75.5       96.5       96.7:       3.5        3.3
Old  :     100.0:       5.2       17.3        3.8       87.5       75.5       96.5       96.7:       3.5        3.3
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        53:         4          1          4         39         39         44         43:
Old  :        53:         4          1          4         39         39         44         43:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 33.1       48.7       53.8       61.3       28.7       44.1       46.1       54.5
Old  :                 33.1       48.7       53.8       61.3       28.7       44.1       46.1       54.5
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
 
WAHA FIN BASIS - ICE OTC                                                                                Code-023399
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 22, 2011                  
-------------------------------------------------------------------------------------------------------------------
     :   Total  :                        Reportable Positions                                :   Nonreportable
     :----------------------------------------------------------------------------------------     Positions
     :   Open   :           Non-Commercial       :     Commercial      :       Total         :
     : Interest :   Long   :  Short   : Spreading:   Long   :  Short   :   Long   :  Short   :   Long   :  Short
-------------------------------------------------------------------------------------------------------------------
     :          : (Contracts of 2,500  MMBTU'S)                                              :
     :          :                                                                            :
All  :   191,569:     3,088     32,060     10,029    172,587    144,864    185,704    186,953:     5,865      4,616
Old  :   191,569:     3,088     32,060     10,029    172,587    144,864    185,704    186,953:     5,865      4,616
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: March 15, 2011                       :
     :     5,781:       642      5,065      1,806      5,522     -1,797      7,970      5,074:    -2,189        707
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       1.6       16.7        5.2       90.1       75.6       96.9       97.6:       3.1        2.4
Old  :     100.0:       1.6       16.7        5.2       90.1       75.6       96.9       97.6:       3.1        2.4
Other:     100.0:       0.0        0.0        0.0        0.0        0.0        0.0        0.0:       0.0        0.0
     :          :                                                                            :
     :# Traders :              Number of Traders in Each Category                            :
All  :        45:         2          5          6         30         30         37         36:
Old  :        45:         2          5          6         30         30         37         36:
Other:         0:         0          0          0          0          0          0          0:
     :----------------------------------------------------------------------------------------------------
     :             Percent of Open Interest Held by the Indicated Number of the Largest Traders
     :                          By Gross Position                       By Net Position
     :               4 or Less Traders     8 or Less Traders     4 or Less Traders     8 or Less Traders
     :                 Long:     Short       Long      Short:      Long      Short       Long      Short
     :----------------------------------------------------------------------------------------------------
All  :                 55.2       36.5       67.1       58.5       51.2       32.3       59.3       48.9
Old  :                 55.2       36.5       67.1       58.5       51.2       32.3       59.3       48.9
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

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Updated March 25, 2011