```
NATURAL GAS ICE HENRY HUB - ICE OTC                                                                     Code-023391
Commitments of Traders with Delta-adjusted Options and Futures Combined, May 31, 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  : 4,730,067:   552,418     87,599  1,649,204  2,487,943  2,969,323  4,689,565  4,706,126:    40,502     23,941
Old  : 4,730,067:   552,418     87,599  1,649,204  2,487,943  2,969,323  4,689,565  4,706,126:    40,502     23,941
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :   -51,172:    93,474    -47,154      4,443   -146,889     -3,916    -48,972    -46,627:    -2,200     -4,545
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:      11.7        1.9       34.9       52.6       62.8       99.1       99.5:       0.9        0.5
Old  :     100.0:      11.7        1.9       34.9       52.6       62.8       99.1       99.5:       0.9        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  :       221:        53         21         64        131        136        202        203:
Old  :       221:        53         21         64        131        136        202        203:
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  :                 25.3       25.0       38.7       40.4       11.2       18.6       16.4       26.4
Old  :                 25.3       25.0       38.7       40.4       11.2       18.6       16.4       26.4
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, May 31, 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  :   399,401:    13,158     16,488     29,304    345,085    350,221    387,547    396,013:    11,854      3,388
Old  :   399,401:    13,158     16,488     29,304    345,085    350,221    387,547    396,013:    11,854      3,388
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :      -361:    -4,105      3,898      2,295      2,479     -6,887        669       -694:    -1,030        333
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       3.3        4.1        7.3       86.4       87.7       97.0       99.2:       3.0        0.8
Old  :     100.0:       3.3        4.1        7.3       86.4       87.7       97.0       99.2:       3.0        0.8
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:         8          4         11         44         40         56         51:
Old  :        59:         8          4         11         44         40         56         51:
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  :                 30.5       46.7       49.5       66.4       21.0       33.0       31.8       38.5
Old  :                 30.5       46.7       49.5       66.4       21.0       33.0       31.8       38.5
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, May 31, 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  :   177,707:     3,580      4,699      5,498    164,901    163,088    173,979    173,285:     3,728      4,422
Old  :   177,707:     3,580      4,699      5,498    164,901    163,088    173,979    173,285:     3,728      4,422
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :    -1,660:       146        122       -224     -1,638     -1,742     -1,716     -1,844:        56        184
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       2.0        2.6        3.1       92.8       91.8       97.9       97.5:       2.1        2.5
Old  :     100.0:       2.0        2.6        3.1       92.8       91.8       97.9       97.5:       2.1        2.5
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  :        47:         4          3          5         40         37         45         44:
Old  :        47:         4          3          5         40         37         45         44:
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  :                 52.9       37.6       71.1       60.6       51.4       34.6       57.7       48.0
Old  :                 52.9       37.6       71.1       60.6       51.4       34.6       57.7       48.0
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, May 31, 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  :   331,013:     3,331      9,833     14,997    307,649    301,611    325,977    326,441:     5,036      4,572
Old  :   331,013:     3,331      9,833     14,997    307,649    301,611    325,977    326,441:     5,036      4,572
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :     4,549:       -66      2,429        782      4,321      1,340      5,037      4,551:      -488         -2
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       1.0        3.0        4.5       92.9       91.1       98.5       98.6:       1.5        1.4
Old  :     100.0:       1.0        3.0        4.5       92.9       91.1       98.5       98.6:       1.5        1.4
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  :        55:         3          9          6         37         31         45         41:
Old  :        55:         3          9          6         37         31         45         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  :                 40.8       47.0       60.8       69.9       39.2       36.3       52.9       56.6
Old  :                 40.8       47.0       60.8       69.9       39.2       36.3       52.9       56.6
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, May 31, 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  :   690,214:       546     33,613     26,420    658,988    625,170    685,954    685,203:     4,260      5,011
Old  :   690,214:       546     33,613     26,420    658,988    625,170    685,954    685,203:     4,260      5,011
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :     2,767:      -734        650        930      2,629      1,078      2,825      2,658:       -58        109
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       0.1        4.9        3.8       95.5       90.6       99.4       99.3:       0.6        0.7
Old  :     100.0:       0.1        4.9        3.8       95.5       90.6       99.4       99.3:       0.6        0.7
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  :        71:         1          9          9         59         52         68         62:
Old  :        71:         1          9          9         59         52         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  :                 41.4       38.0       55.1       53.2       29.2       26.6       41.7       36.5
Old  :                 41.4       38.0       55.1       53.2       29.2       26.6       41.7       36.5
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, May 31, 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  :   196,577:    13,444      1,263      2,882    173,373    182,592    189,699    186,737:     6,878      9,840
Old  :   196,577:    13,444      1,263      2,882    173,373    182,592    189,699    186,737:     6,878      9,840
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :       327:     3,634       -893       -442     -2,255      2,274        937        939:      -610       -612
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       6.8        0.6        1.5       88.2       92.9       96.5       95.0:       3.5        5.0
Old  :     100.0:       6.8        0.6        1.5       88.2       92.9       96.5       95.0:       3.5        5.0
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  :        41:         5          1          4         29         26         35         30:
Old  :        41:         5          1          4         29         26         35         30:
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       63.3       62.7       75.8       45.0       59.8       58.6       69.7
Old  :                 47.1       63.3       62.7       75.8       45.0       59.8       58.6       69.7
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, May 31, 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  :   320,939:    10,667     36,965     20,112    282,790    255,109    313,569    312,186:     7,370      8,753
Old  :   320,939:    10,667     36,965     20,112    282,790    255,109    313,569    312,186:     7,370      8,753
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :       937:       -37     11,244        260      2,895    -10,967      3,118        537:    -2,181        400
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       3.3       11.5        6.3       88.1       79.5       97.7       97.3:       2.3        2.7
Old  :     100.0:       3.3       11.5        6.3       88.1       79.5       97.7       97.3:       2.3        2.7
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  :        61:         5          2          5         46         47         52         53:
Old  :        61:         5          2          5         46         47         52         53:
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  :                 28.9       35.6       50.0       52.7       25.5       25.5       39.9       37.1
Old  :                 28.9       35.6       50.0       52.7       25.5       25.5       39.9       37.1
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, May 31, 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  :   177,856:     8,830     10,414      7,416    156,756    155,171    173,002    173,001:     4,854      4,855
Old  :   177,856:     8,830     10,414      7,416    156,756    155,171    173,002    173,001:     4,854      4,855
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: May 24, 2011                         :
     :    -6,411:      -828     -3,292        759     -6,887     -4,101     -6,956     -6,634:       545        223
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       5.0        5.9        4.2       88.1       87.2       97.3       97.3:       2.7        2.7
Old  :     100.0:       5.0        5.9        4.2       88.1       87.2       97.3       97.3:       2.7        2.7
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  :        48:         4          2          5         33         41         38         47:
Old  :        48:         4          2          5         33         41         38         47:
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  :                 40.3       27.3       60.8       47.0       35.4       22.2       50.3       36.6
Old  :                 40.3       27.3       60.8       47.0       35.4       22.2       50.3       36.6
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

----

Updated June 3, 2011