GULF # 6 FUEL 3.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE        Code-02165A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        5,620
COMMITMENTS
     625      243      275    3,570    4,807    4,470    5,325    1,150      295

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        500)
     300        0        0      200      255      500      255        0      245

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.1      4.3      4.9     63.5     85.5     79.5     94.8     20.5      5.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       1        2        1       16       14       17       17
 
 
NY RES FUEL 1.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE          Code-02165B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:       14,972
COMMITMENTS
     453    7,010       89   14,015    6,280   14,557   13,379      415    1,593

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        100)
     -25       25        0      125       75      100      100        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.0     46.8      0.6     93.6     41.9     97.2     89.4      2.8     10.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       2        4        1       26       27       29       31
 
 
SING FUEL OIL 180 CAL SWAP - NEW YORK MERCANTILE EXCHANGE            Code-02165G
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 METRIC TONS)                     OPEN INTEREST:        2,431
COMMITMENTS
       0       75        0    1,796    1,716    1,796    1,791      635      640

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:         83)
       0        0        0       64      111       64      111       19      -28

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      3.1      0.0     73.9     70.6     73.9     73.7     26.1     26.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       0        1        0       19       25       19       26
 
 
NO. 2 HEATING OIL, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-022651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      232,731
COMMITMENTS
  19,954   25,052   29,604  152,801  146,953  202,359  201,609   30,372   31,122

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      3,067)
  -2,586    1,806      696    5,734      -60    3,844    2,442     -777      626

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.6     10.8     12.7     65.7     63.1     86.9     86.6     13.1     13.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      141)
      26       34       35       64       74      112      125
 
 
NATURAL GAS - NEW YORK MERCANTILE EXCHANGE                           Code-023651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(10,000 MMBTU'S)                                     OPEN INTEREST:    1,316,305
COMMITMENTS
  74,064   98,405  563,347  606,820  614,893  1244231  1276645   72,074   39,660

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:     22,325)
  -1,751   -1,042   20,142   -1,801   -2,988   16,590   16,112    5,735    6,213

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.6      7.5     42.8     46.1     46.7     94.5     97.0      5.5      3.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      223)
      56       75       87       84       80      191      196
 
 
MICHCON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       91,869
COMMITMENTS
   2,680   15,040    2,809   73,839   63,075   79,328   80,924   12,541   10,945

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        502)
     613     -223      276     -235      171      654      224     -152      278

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.9     16.4      3.1     80.4     68.7     86.3     88.1     13.7     11.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       1        3        3       18       16       21       20
 
 
PERMIAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       54,802
COMMITMENTS
       0    3,981    2,313   42,187   35,610   44,500   41,904   10,302   12,898

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      6,394)
       0   -1,744    1,200    5,130    6,938    6,330    6,394       64        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      7.3      4.2     77.0     65.0     81.2     76.5     18.8     23.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       0        2        1       20       17       21       19
 
 
M-3 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      119,805
COMMITMENTS
   9,071      676    5,676   89,798  103,342  104,545  109,694   15,260   10,111

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        540)
       0     -856        0     -648    2,930     -648    2,074    1,188   -1,534

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.6      0.6      4.7     75.0     86.3     87.3     91.6     12.7      8.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       2        1        3       17       23       20       26
 
 
TCO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365D
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       66,486
COMMITMENTS
  18,256        0        0   39,206   55,425   57,462   55,425    9,024   11,061

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:         88)
       0        0        0    1,096      240    1,096      240   -1,008     -152

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.5      0.0      0.0     59.0     83.4     86.4     83.4     13.6     16.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       2        0        0       17       16       19       16
 
 
MALIN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365E
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       79,204
COMMITMENTS
   1,638    3,076    5,135   66,557   63,786   73,330   71,997    5,874    7,207

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:       -115)
    -543      -95        5      607     -639       69     -729     -184      614

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.1      3.9      6.5     84.0     80.5     92.6     90.9      7.4      9.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       1        3        3       18       19       21       23
 
 
PG&E CITYGATE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE              Code-02365F
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       68,351
COMMITMENTS
   5,611    1,006    2,683   52,523   57,236   60,817   60,925    7,534    7,426

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:       -549)
   2,118       60     -593   -1,706       44     -181     -489     -368      -60

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.2      1.5      3.9     76.8     83.7     89.0     89.1     11.0     10.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       1        1        1       15       19       16       21
 
 
NGPL TEXOK BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                 Code-02365G
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       85,512
COMMITMENTS
   3,260    2,019    3,897   68,089   70,686   75,246   76,602   10,266    8,910

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      1,898)
      60     -850      502      540    1,818    1,102    1,470      796      428

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.8      2.4      4.6     79.6     82.7     88.0     89.6     12.0     10.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       2        2        2       18       27       21       30
 
 
NGPL MID-CON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE               Code-02365K
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       89,259
COMMITMENTS
       0    6,401    3,707   71,742   68,446   75,449   78,554   13,810   10,705

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      2,242)
       0      510      366    1,776    1,610    2,142    2,486      100     -244

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      7.2      4.2     80.4     76.7     84.5     88.0     15.5     12.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       0        3        2       18       18       20       21
 
 
DOMINION BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365N
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       59,588
COMMITMENTS
   4,696    2,325      589   45,148   47,081   50,433   49,995    9,155    9,593

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        817)
       0     -146     -124     -437      175     -561      -95    1,378      912

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.9      3.9      1.0     75.8     79.0     84.6     83.9     15.4     16.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       1        1        1       20       17       22       18
 
 
WAHA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                       Code-02365O
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      114,955
COMMITMENTS
   5,998    7,414    5,285   94,651   89,678  105,934  102,377    9,021   12,578

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      4,330)
   1,337     -840      407    2,556    2,997    4,300    2,564       30    1,766

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.2      6.4      4.6     82.3     78.0     92.2     89.1      7.8     10.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       3        2        4       24       21       28       26
 
 
CIG BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365P
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       59,883
COMMITMENTS
       0    9,719      644   41,421   41,310   42,065   51,673   17,818    8,210

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        948)
       0      146       24    1,144      142    1,168      312     -220      636

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     16.2      1.1     69.2     69.0     70.2     86.3     29.8     13.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       0        2        1       13       12       14       14
 
 
ALBERTA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035650
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      171,801
COMMITMENTS
   3,852   21,112   10,476  142,367  133,541  156,695  165,129   15,106    6,672

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:     -1,002)
       0     -404      300   -1,950     -836   -1,650     -940      648      -62

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.2     12.3      6.1     82.9     77.7     91.2     96.1      8.8      3.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       48)
       2        5        6       36       37       42       44
 
 
CHICAGO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       81,244
COMMITMENTS
   1,241    4,744    1,897   69,307   62,396   72,445   69,037    8,799   12,207

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        697)
  -1,531      318      771      846    2,295       86    3,384      611   -2,687

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.5      5.8      2.3     85.3     76.8     89.2     85.0     10.8     15.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       1        2        2       17       15       19       18
 
 
HOUSTON SHIP CH BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035653
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      282,830
COMMITMENTS
  14,176      723    8,208  245,360  262,374  267,744  271,305   15,086   11,525

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      6,461)
   1,304        0    1,404    2,653    3,416    5,361    4,820    1,100    1,641

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.0      0.3      2.9     86.8     92.8     94.7     95.9      5.3      4.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       50)
       4        2        5       35       38       40       44
 
 
NW PIPE ROCKIES BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035654
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      170,299
COMMITMENTS
  10,377   14,117   15,797  129,697  134,126  155,871  164,040   14,428    6,259

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      3,933)
   3,042     -155      478    1,647    3,790    5,167    4,113   -1,234     -180

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.1      8.3      9.3     76.2     78.8     91.5     96.3      8.5      3.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       43)
       1        4        4       36       30       40       35
 
 
PANHANDLE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035655
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      182,690
COMMITMENTS
  12,120   10,871    7,821  145,570  146,157  165,511  164,849   17,179   17,841

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        -79)
    -980    2,797   -2,067    4,375   -2,918    1,328   -2,188   -1,407    2,109

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.6      6.0      4.3     79.7     80.0     90.6     90.2      9.4      9.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       42)
       2        5        5       29       31       35       37
 
 
SAN JUAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-035656
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       47,602
COMMITMENTS
       0    2,644    2,459   33,934   30,762   36,393   35,865   11,209   11,737

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      5.6      5.2     71.3     64.6     76.5     75.3     23.5     24.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       0        1        1       14       14       15       15
 
 
SOCAL BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-035657
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      242,955
COMMITMENTS
  19,264    4,982   22,423  186,295  197,563  227,982  224,968   14,973   17,987

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:     10,273)
  -2,914      665    1,682    9,873    6,968    8,641    9,315    1,632      958

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.9      2.1      9.2     76.7     81.3     93.8     92.6      6.2      7.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       47)
       3        3        6       37       35       43       41
 
 
TRANSCO ZONE 6 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE             Code-035658
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       61,710
COMMITMENTS
     190    5,956    2,832   51,753   41,218   54,775   50,006    6,935   11,704

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:       -925)
     190   -1,038       -4      627     -130      813   -1,172   -1,738      247

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.3      9.7      4.6     83.9     66.8     88.8     81.0     11.2     19.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       1        1        2       23       19       25       21
 
 
HENRY HUB GAS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-03565B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    2,710,404
COMMITMENTS
 267,183  115,216  860,681  1548172  1718215  2676036  2694112   34,368   16,292

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:     30,685)
   1,478      693   21,654    7,817    9,038   30,949   31,385     -264     -700

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.9      4.3     31.8     57.1     63.4     98.7     99.4      1.3      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      152)
      33       16       42      103       89      148      135
 
 
HENRY HUB PENULTIMATE GAS SWAP - NEW YORK MERCANTILE EXCHANGE        Code-03565C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      860,765
COMMITMENTS
 134,411  307,024   87,987  633,023  461,006  855,421  856,017    5,344    4,748

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:     30,272)
   4,310   62,364   -8,824   35,160  -24,392   30,646   29,148     -374    1,124

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.6     35.7     10.2     73.5     53.6     99.4     99.4      0.6      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       71)
      19       16       28       36       33       69       63
 
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE               Code-064657
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       82,245
COMMITMENTS
   2,561      937    3,569   75,547   77,460   81,676   81,965      569      280

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      2,761)
    -176      -29       49    2,770    2,781    2,643    2,801      118      -40

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.1      1.1      4.3     91.9     94.2     99.3     99.7      0.7      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       52)
       5        4        6       39       37       47       44
 
 
NYISO ZONE A LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       19,212
COMMITMENTS
     596        0      940   17,676   18,038   19,212   18,978        0      234

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:         42)
       0        0        0      171      126      171      126     -129      -84

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.1      0.0      4.9     92.0     93.9    100.0     98.8      0.0      1.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       1        0        1       14       15       15       16
 
 
NYISO ZONE G LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       15,056
COMMITMENTS
     852        0        0   14,161   14,865   15,013   14,865       43      191

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:          0)
       0        0        0        0        0        0        0        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.7      0.0      0.0     94.1     98.7     99.7     98.7      0.3      1.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       2        0        0       11       11       13       11
 
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE              Code-06465H
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       19,327
COMMITMENTS
   1,649        0      556   16,812   18,610   19,017   19,166      310      161

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:         34)
     -24        0       12      289       51      277       63     -243      -29

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.5      0.0      2.9     87.0     96.3     98.4     99.2      1.6      0.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       2        0        2       20       21       22       23
 
 
NORTH ILL CAL MONTH LMP SWAP - NEW YORK MERCANTILE EXCHANGE          Code-06465I
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       14,981
COMMITMENTS
   1,595       40      100   12,216   14,148   13,911   14,288    1,070      693

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:       -121)
     -40        0        0     -221     -106     -261     -106      140      -15

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.6      0.3      0.7     81.5     94.4     92.9     95.4      7.1      4.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       1        1        1       15       13       16       15
 
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06465M
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       26,048
COMMITMENTS
     888        0      802   23,642   24,904   25,332   25,706      716      342

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        218)
       0        0        0      218      218      218      218        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.4      0.0      3.1     90.8     95.6     97.3     98.7      2.7      1.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       2        0        1       23       23       25       24
 
 
NORTH ILL OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE             Code-06465N
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       27,010
COMMITMENTS
       0      896    1,760   24,780   23,920   26,540   26,576      470      434

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:        120)
       0        0        0      120      120      120      120        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      3.3      6.5     91.7     88.6     98.3     98.4      1.7      1.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       0        2        1       18       16       19       18
 
 
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06465S
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       10,726
COMMITMENTS
       0      440      560   10,014    9,606   10,574   10,606      152      120

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:          0)
       0        0        0        0      160        0      160        0     -160

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      4.1      5.2     93.4     89.6     98.6     98.9      1.4      1.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       0        1        1       17       14       18       15
 
 
CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE                Code-067651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:    2,347,484
COMMITMENTS
 187,501  121,944  631,525  1448195  1498193  2267221  2251662   80,262   95,821

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:     57,286)
  11,093    4,041    4,364   30,467   39,648   45,924   48,052   11,362    9,233

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.0      5.2     26.9     61.7     63.8     96.6     95.9      3.4      4.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      348)
      99      122      167       98      101      295      307
 
 
WTI CRUDE OIL CALENDAR SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06765A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:       90,753
COMMITMENTS
  25,636    2,138    3,565   37,425   56,180   66,626   61,883   24,127   28,870

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      3,456)
     363      900      829    7,969     -618    9,161    1,111   -5,705    2,345

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    28.2      2.4      3.9     41.2     61.9     73.4     68.2     26.6     31.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       4        2        4       14       13       20       17
 
 
DUBAI CRUDE OIL CALENDAR SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06765G
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:       23,760
COMMITMENTS
       0        0        0   23,760   23,710   23,760   23,710        0       50

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:          0)
       0        0        0        0        0        0        0        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      0.0      0.0    100.0     99.8    100.0     99.8      0.0      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       0        0        0       18       16       18       16
 
 
WTI CRUDE OIL FINANCIAL - NEW YORK MERCANTILE EXCHANGE               Code-06765I
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:       56,946
COMMITMENTS
   2,959    8,920   18,557   29,987   23,654   51,503   51,131    5,443    5,815

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      1,017)
    -286      689      441      886      -90    1,041    1,040      -24      -23

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.2     15.7     32.6     52.7     41.5     90.4     89.8      9.6     10.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       9        8       16       15       15       32       31
 
 
PALLADIUM - NEW YORK MERCANTILE EXCHANGE                             Code-075651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:       15,502
COMMITMENTS
   8,973    1,953        2    4,263   13,235   13,238   15,190    2,264      312

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:       -110)
     232        2      -57       10      205      185      150     -295     -260

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    57.9     12.6      0.0     27.5     85.4     85.4     98.0     14.6      2.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      111)
      62        8        1       19       26       82       34
 
 
PLATINUM - NEW YORK MERCANTILE EXCHANGE                              Code-076651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 50 TROY OUNCES)                        OPEN INTEREST:       10,719
COMMITMENTS
   5,724      725      350    2,411    8,694    8,485    9,769    2,234      950

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:       -306)
     203     -111       38      -72      102      169       29     -475     -335

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    53.4      6.8      3.3     22.5     81.1     79.2     91.1     20.8      8.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       71)
      36        5        5       11       21       49       30
 
 
GASOLINE BLENDSTOCK (RBOB) - NEW YORK MERCANTILE EXCHANGE            Code-111659
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/13/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      197,403
COMMITMENTS
  35,684    8,656   25,757  111,804  143,431  173,244  177,844   24,158   19,558

CHANGES FROM 03/06/07 (CHANGE IN OPEN INTEREST:      4,767)
     763     -376      513   -2,611   -1,318   -1,335   -1,181    6,102    5,949

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    18.1      4.4     13.0     56.6     72.7     87.8     90.1     12.2      9.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      173)
      44       23       34       74       93      137      136
 

Updated March 16, 2007