```
NATURAL GAS ICE HENRY HUB - ICE OTC                                                                     Code-023391
Commitments of Traders with Delta-adjusted Options and Futures Combined, March 1, 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  : 4,512,736:   330,976    154,415  1,736,589  2,414,998  2,601,553  4,482,563  4,492,557:    30,173     20,179
Old  : 4,512,736:   330,976    154,415  1,736,589  2,414,998  2,601,553  4,482,563  4,492,557:    30,173     20,179
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :  -158,392:   -74,103      7,404     19,768    -86,850   -189,737   -141,185   -162,565:   -17,207      4,173
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       7.3        3.4       38.5       53.5       57.6       99.3       99.6:       0.7        0.4
Old  :     100.0:       7.3        3.4       38.5       53.5       57.6       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  :       216:        39         38         72        127        122        202        199:
Old  :       216:        39         38         72        127        122        202        199:
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  :                 24.2       27.8       37.0       40.9        8.9       15.8       14.6       21.0
Old  :                 24.2       27.8       37.0       40.9        8.9       15.8       14.6       21.0
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 1, 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  :   379,278:    21,718     16,753     19,440    322,587    339,861    363,745    376,054:    15,533      3,224
Old  :   379,278:    21,718     16,753     19,440    322,587    339,861    363,745    376,054:    15,533      3,224
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :     1,319:    10,643      1,010     -2,862     -3,590      4,581      4,191      2,729:    -2,872     -1,410
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       5.7        4.4        5.1       85.1       89.6       95.9       99.1:       4.1        0.9
Old  :     100.0:       5.7        4.4        5.1       85.1       89.6       95.9       99.1:       4.1        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  :        55:         6          5         10         38         36         49         46:
Old  :        55:         6          5         10         38         36         49         46:
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  :                 33.0       50.8       52.7       68.9       23.7       33.8       34.4       39.8
Old  :                 33.0       50.8       52.7       68.9       23.7       33.8       34.4       39.8
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 1, 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  :   199,320:     1,964      3,240      6,126    187,199    184,266    195,289    193,632:     4,031      5,688
Old  :   199,320:     1,964      3,240      6,126    187,199    184,266    195,289    193,632:     4,031      5,688
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :    -1,446:     1,000       -838        998     -2,046     -2,368        -48     -2,208:    -1,398        762
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       1.0        1.6        3.1       93.9       92.4       98.0       97.1:       2.0        2.9
Old  :     100.0:       1.0        1.6        3.1       93.9       92.4       98.0       97.1:       2.0        2.9
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  :        44:         2          3          5         33         36         38         41:
Old  :        44:         2          3          5         33         36         38         41:
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  :                 57.0       40.8       73.3       63.7       54.8       38.1       64.2       55.4
Old  :                 57.0       40.8       73.3       63.7       54.8       38.1       64.2       55.4
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 1, 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  :   334,846:    30,142      8,681      7,191    291,105    315,286    328,438    331,158:     6,408      3,688
Old  :   334,846:    30,142      8,681      7,191    291,105    315,286    328,438    331,158:     6,408      3,688
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :    19,136:       899       -278        900     17,183     19,984     18,982     20,606:       154     -1,470
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       9.0        2.6        2.1       86.9       94.2       98.1       98.9:       1.9        1.1
Old  :     100.0:       9.0        2.6        2.1       86.9       94.2       98.1       98.9:       1.9        1.1
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  :        48:         4          4          6         35         35         42         42:
Old  :        48:         4          4          6         35         35         42         42:
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  :                 44.5       46.6       64.6       71.5       42.7       40.1       59.2       60.9
Old  :                 44.5       46.6       64.6       71.5       42.7       40.1       59.2       60.9
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 1, 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  :   739,378:     7,331     37,738     52,956    671,490    645,383    731,777    736,077:     7,601      3,301
Old  :   739,378:     7,331     37,738     52,956    671,490    645,383    731,777    736,077:     7,601      3,301
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :     8,175:    -1,304     -1,267      6,486     -1,323      1,632      3,859      6,851:     4,316      1,324
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       1.0        5.1        7.2       90.8       87.3       99.0       99.6:       1.0        0.4
Old  :     100.0:       1.0        5.1        7.2       90.8       87.3       99.0       99.6:       1.0        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  :        71:         2         10         11         57         50         68         62:
Old  :        71:         2         10         11         57         50         68         62:
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  :                 37.5       39.6       51.9       56.2       23.6       26.6       35.0       37.0
Old  :                 37.5       39.6       51.9       56.2       23.6       26.6       35.0       37.0
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 1, 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  :   193,301:    19,965      2,235      2,076    163,975    181,105    186,016    185,416:     7,285      7,885
Old  :   193,301:    19,965      2,235      2,076    163,975    181,105    186,016    185,416:     7,285      7,885
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :     4,328:       238      2,235       -973      7,502      4,650      6,767      5,912:    -2,439     -1,584
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      10.3        1.2        1.1       84.8       93.7       96.2       95.9:       3.8        4.1
Old  :     100.0:      10.3        1.2        1.1       84.8       93.7       96.2       95.9:       3.8        4.1
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  :        43:         3          2          3         34         25         38         29:
Old  :        43:         3          2          3         34         25         38         29:
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  :                 43.7       64.7       59.5       79.3       39.2       61.8       54.5       69.1
Old  :                 43.7       64.7       59.5       79.3       39.2       61.8       54.5       69.1
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 1, 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  :   338,688:    17,377     46,418     14,412    295,299    271,436    327,088    332,266:    11,600      6,422
Old  :   338,688:    17,377     46,418     14,412    295,299    271,436    327,088    332,266:    11,600      6,422
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :     9,269:     2,621      4,530     -3,750      9,904      8,304      8,775      9,084:       494        185
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       5.1       13.7        4.3       87.2       80.1       96.6       98.1:       3.4        1.9
Old  :     100.0:       5.1       13.7        4.3       87.2       80.1       96.6       98.1:       3.4        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  :        55:         3          3          4         41         38         46         43:
Old  :        55:         3          3          4         41         38         46         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  :                 34.5       43.3       52.9       57.1       29.7       36.8       45.9       48.9
Old  :                 34.5       43.3       52.9       57.1       29.7       36.8       45.9       48.9
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 1, 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  :   187,012:     3,373     41,022      6,433    170,930    134,195    180,736    181,650:     6,276      5,362
Old  :   187,012:     3,373     41,022      6,433    170,930    134,195    180,736    181,650:     6,276      5,362
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: February 22, 2011                    :
     :     2,385:    -1,226      9,759        273      5,013     -5,539      4,060      4,493:    -1,675     -2,108
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       1.8       21.9        3.4       91.4       71.8       96.6       97.1:       3.4        2.9
Old  :     100.0:       1.8       21.9        3.4       91.4       71.8       96.6       97.1:       3.4        2.9
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  :        43:         2          4          4         30         26         35         31:
Old  :        43:         2          4          4         30         26         35         31:
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       39.9       67.4       61.9       50.6       34.7       59.6       51.2
Old  :                 55.2       39.9       67.4       61.9       50.6       34.7       59.6       51.2
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

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Updated March 4, 2011