```
NATURAL GAS ICE HENRY HUB - ICE OTC                                                                     Code-023391
Commitments of Traders with Delta-adjusted Options and Futures Combined, April 12, 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  : 4,812,603:   331,255    135,226  1,822,993  2,626,517  2,838,713  4,780,765  4,796,932:    31,838     15,671
Old  : 4,812,603:   331,255    135,226  1,822,993  2,626,517  2,838,713  4,780,765  4,796,932:    31,838     15,671
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :   175,403:   -71,566     46,010     97,001    145,995     36,482    171,430    179,493:     3,973     -4,090
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       6.9        2.8       37.9       54.6       59.0       99.3       99.7:       0.7        0.3
Old  :     100.0:       6.9        2.8       37.9       54.6       59.0       99.3       99.7:       0.7        0.3
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  :       221:        44         30         68        135        133        206        205:
Old  :       221:        44         30         68        135        133        206        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       26.4       38.2       40.7        9.9       16.6       15.1       22.3
Old  :                 23.5       26.4       38.2       40.7        9.9       16.6       15.1       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, April 12, 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  :   371,207:    15,681     13,786     22,714    320,750    332,193    359,145    368,693:    12,062      2,514
Old  :   371,207:    15,681     13,786     22,714    320,750    332,193    359,145    368,693:    12,062      2,514
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :    11,604:     7,152        719     -1,604      8,943     12,999     14,491     12,114:    -2,887       -510
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       4.2        3.7        6.1       86.4       89.5       96.8       99.3:       3.2        0.7
Old  :     100.0:       4.2        3.7        6.1       86.4       89.5       96.8       99.3:       3.2        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  :        61:         7          5          8         46         41         57         50:
Old  :        61:         7          5          8         46         41         57         50:
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  :                 28.1       47.5       48.5       66.6       20.6       32.3       30.7       40.5
Old  :                 28.1       47.5       48.5       66.6       20.6       32.3       30.7       40.5
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, April 12, 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  :   176,054:     4,088      1,122      4,100    162,131    168,511    170,319    173,733:     5,735      2,321
Old  :   176,054:     4,088      1,122      4,100    162,131    168,511    170,319    173,733:     5,735      2,321
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :       803:        98      1,122         76        715        898        889      2,096:       -86     -1,293
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       2.3        0.6        2.3       92.1       95.7       96.7       98.7:       3.3        1.3
Old  :     100.0:       2.3        0.6        2.3       92.1       95.7       96.7       98.7:       3.3        1.3
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  :        45:         5          1          6         36         35         42         41:
Old  :        45:         5          1          6         36         35         42         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  :                 51.9       42.4       71.9       66.4       50.0       39.1       63.4       57.0
Old  :                 51.9       42.4       71.9       66.4       50.0       39.1       63.4       57.0
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, April 12, 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  :   308,179:    10,903      4,112     10,396    281,330    287,290    302,629    301,798:     5,550      6,381
Old  :   308,179:    10,903      4,112     10,396    281,330    287,290    302,629    301,798:     5,550      6,381
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :     1,102:     1,368       -805     -1,009        620      2,581        979        767:       123        335
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       3.5        1.3        3.4       91.3       93.2       98.2       97.9:       1.8        2.1
Old  :     100.0:       3.5        1.3        3.4       91.3       93.2       98.2       97.9:       1.8        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  :        47:         3          2          4         37         32         41         37:
Old  :        47:         3          2          4         37         32         41         37:
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  :                 43.1       45.4       62.4       70.7       40.1       39.5       55.6       62.1
Old  :                 43.1       45.4       62.4       70.7       40.1       39.5       55.6       62.1
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, April 12, 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  :   735,038:       391     47,716     45,994    684,188    636,198    730,573    729,908:     4,465      5,130
Old  :   735,038:       391     47,716     45,994    684,188    636,198    730,573    729,908:     4,465      5,130
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :    14,216:      -106        192      1,449     13,807     12,521     15,150     14,162:      -934         54
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       0.1        6.5        6.3       93.1       86.6       99.4       99.3:       0.6        0.7
Old  :     100.0:       0.1        6.5        6.3       93.1       86.6       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  :        70:         1          9          9         58         49         67         59:
Old  :        70:         1          9          9         58         49         67         59:
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  :                 38.5       38.7       53.5       55.5       26.1       27.2       39.1       37.2
Old  :                 38.5       38.7       53.5       55.5       26.1       27.2       39.1       37.2
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, April 12, 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  :   194,093:     8,459      3,493      2,249    175,388    177,836    186,096    183,578:     7,997     10,515
Old  :   194,093:     8,459      3,493      2,249    175,388    177,836    186,096    183,578:     7,997     10,515
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :     3,175:    -1,459      3,493       -668      5,639       -196      3,512      2,629:      -337        546
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       4.4        1.8        1.2       90.4       91.6       95.9       94.6:       4.1        5.4
Old  :     100.0:       4.4        1.8        1.2       90.4       91.6       95.9       94.6:       4.1        5.4
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  :        37:         2          2          3         27         24         31         27:
Old  :        37:         2          2          3         27         24         31         27:
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  :                 51.1       64.7       66.3       77.7       49.6       61.9       63.4       70.8
Old  :                 51.1       64.7       66.3       77.7       49.6       61.9       63.4       70.8
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, April 12, 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  :   338,623:    14,168     62,509     10,964    303,631    253,406    328,763    326,879:     9,860     11,744
Old  :   338,623:    14,168     62,509     10,964    303,631    253,406    328,763    326,879:     9,860     11,744
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :    20,326:       449     12,827     -7,779     27,441     14,969     20,111     20,017:       215        309
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       4.2       18.5        3.2       89.7       74.8       97.1       96.5:       2.9        3.5
Old  :     100.0:       4.2       18.5        3.2       89.7       74.8       97.1       96.5:       2.9        3.5
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  :        51:         3          2          4         36         38         41         42:
Old  :        51:         3          2          4         36         38         41         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  :                 30.2       49.3       54.5       63.5       26.8       46.2       44.8       57.3
Old  :                 30.2       49.3       54.5       63.5       26.8       46.2       44.8       57.3
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, April 12, 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  :   198,666:     8,811     12,776      8,404    175,543    170,763    192,758    191,943:     5,908      6,723
Old  :   198,666:     8,811     12,776      8,404    175,543    170,763    192,758    191,943:     5,908      6,723
Other:         0:         0          0          0          0          0          0          0:         0          0
     :          :                                                                            :
     :          :          Changes in Commitments from: April 5, 2011                        :
     :    14,777:       934      4,128     -2,774     16,836     11,471     14,996     12,825:      -219      1,952
     :          :                                                                            :
     :          :    Percent of Open Interest Represented by Each Category of Trader         :
All  :     100.0:       4.4        6.4        4.2       88.4       86.0       97.0       96.6:       3.0        3.4
Old  :     100.0:       4.4        6.4        4.2       88.4       86.0       97.0       96.6:       3.0        3.4
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  :        43:         3          4          7         26         30         33         37:
Old  :        43:         3          4          7         26         30         33         37:
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  :                 65.7       36.3       78.4       57.6       62.5       33.6       68.6       50.7
Old  :                 65.7       36.3       78.4       57.6       62.5       33.6       68.6       50.7
Other:                  0.0        0.0        0.0        0.0        0.0        0.0        0.0        0.0
```

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Updated April 15, 2011