NY RES FUEL 1.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE          Code-02165B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        6,134
COMMITMENTS
   1,080    1,260       25    4,313    4,367    5,418    5,652      716      482

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:          0)
       0      -75        0     -153       75     -153        0      153        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.6     20.5      0.4     70.3     71.2     88.3     92.1     11.7      7.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       1        3        1       15       21       17       24
 
 
NO. 2 HEATING OIL, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-022651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      198,764
COMMITMENTS
  20,505   20,205   39,673  102,370  110,750  162,548  170,628   36,216   28,136

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        607)
    -825   -3,439     -511    2,343    4,639    1,007      690     -400      -83

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.3     10.2     20.0     51.5     55.7     81.8     85.8     18.2     14.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      131)
      27       33       38       61       62      116      109
 
 
NATURAL GAS - NEW YORK MERCANTILE EXCHANGE                           Code-023651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(10,000 MMBTU'S)                                     OPEN INTEREST:    1,245,461
COMMITMENTS
  85,755  103,252  586,607  489,353  507,848  1161715  1197707   83,746   47,754

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     53,645)
   3,782     -850   32,991   17,785   18,161   54,559   50,302     -914    3,342

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.9      8.3     47.1     39.3     40.8     93.3     96.2      6.7      3.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      240)
      70       71       99       96       87      215      209
 
 
MICHCON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365A
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       69,589
COMMITMENTS
     120   11,912    4,089   57,260   49,136   61,469   65,137    8,120    4,452

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        304)
     120     -859      518     -472      553      166      212      138       92

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.2     17.1      5.9     82.3     70.6     88.3     93.6     11.7      6.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       1        1        1       17       21       18       23
 
 
PERMIAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       67,769
COMMITMENTS
   8,304    2,407    5,447   46,799   53,157   60,550   61,011    7,219    6,758

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     -1,275)
   1,449        0     -417   -2,369   -1,097   -1,337   -1,514       62      239

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.3      3.6      8.0     69.1     78.4     89.3     90.0     10.7     10.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       4        1        4       24       19       29       23
 
 
M-3 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365C
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      130,691
COMMITMENTS
   5,158      594      765  111,518  120,081  117,441  121,440   13,250    9,251

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      5,363)
     854        0        0    2,277    6,151    3,131    6,151    2,232     -788

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.9      0.5      0.6     85.3     91.9     89.9     92.9     10.1      7.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       2        1        1       26       26       29       27
 
 
TCO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365D
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       80,494
COMMITMENTS
  11,984        0        0   62,370   70,951   74,354   70,951    6,140    9,543

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      5,912)
   1,712        0        0    5,179    5,815    6,891    5,815     -979       97

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    14.9      0.0      0.0     77.5     88.1     92.4     88.1      7.6     11.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       1        0        0       23       23       24       23
 
 
MALIN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365E
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       84,485
COMMITMENTS
   1,044   12,474    3,768   77,037   61,923   81,849   78,165    2,636    6,320

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:       -866)
       0     -376     -204     -378     -132     -582     -712     -284     -154

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.2     14.8      4.5     91.2     73.3     96.9     92.5      3.1      7.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       1        4        2       21       17       24       21
 
 
PG&E CITYGATE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE              Code-02365F
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       67,590
COMMITMENTS
   8,042   10,182    3,223   50,213   47,526   61,478   60,931    6,112    6,659

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        260)
  -1,306        0      555    1,899     -509    1,148       46     -888      214

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.9     15.1      4.8     74.3     70.3     91.0     90.1      9.0      9.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       2        4        4       19       20       24       25
 
 
NGPL TEXOK BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                 Code-02365G
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      105,300
COMMITMENTS
       0    7,315    3,447   94,678   85,506   98,125   96,268    7,175    9,032

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     -2,690)
       0     -329      306   -4,034   -3,336   -3,728   -3,359    1,038      669

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      6.9      3.3     89.9     81.2     93.2     91.4      6.8      8.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       36)
       0        1        1       29       27       30       28
 
 
SUMAS BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365J
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       46,016
COMMITMENTS
   3,997    5,701      435   33,985   35,236   38,417   41,372    7,599    4,644

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      2,002)
     154    1,707     -240    1,815      601    1,729    2,068      273      -66

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.7     12.4      0.9     73.9     76.6     83.5     89.9     16.5     10.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       1        2        1       16       16       18       18
 
 
NGPL MID-CON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE               Code-02365K
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       63,828
COMMITMENTS
       0    2,273    2,526   49,162   50,311   51,688   55,110   12,140    8,718

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      3.6      4.0     77.0     78.8     81.0     86.3     19.0     13.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       0        1        1       16       15       17       16
 
 
DOMINION BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365N
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      104,172
COMMITMENTS
   7,996        0    1,440   85,552   96,799   94,988   98,239    9,184    5,933

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      4,103)
       0        0        0    3,125    3,853    3,125    3,853      978      250

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.7      0.0      1.4     82.1     92.9     91.2     94.3      8.8      5.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       1        0        1       28       26       29       27
 
 
WAHA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                       Code-02365O
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       80,143
COMMITMENTS
       0   11,355    3,205   71,461   58,900   74,666   73,460    5,477    6,683

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        -94)
       0   -2,308      457     -921    4,226     -464    2,375      370   -2,469

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     14.2      4.0     89.2     73.5     93.2     91.7      6.8      8.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
       0        3        1       27       24       28       27
 
 
CIG BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365P
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       59,099
COMMITMENTS
       0    1,141    3,098   45,546   48,131   48,644   52,370   10,455    6,729

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      1,236)
       0     -926      282      956    1,578    1,238      934       -2      302

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      1.9      5.2     77.1     81.4     82.3     88.6     17.7     11.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       0        1        1       17       21       18       22
 
 
HENRY HUB INDEX SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-023A09
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       52,636
COMMITMENTS
   2,922    7,590        0   47,830   43,782   50,752   51,372    1,884    1,264

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      2,592)
    -240    1,140     -780    3,192    1,944    2,172    2,304      420      288

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.6     14.4      0.0     90.9     83.2     96.4     97.6      3.6      2.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       4        2        0       12       16       16       18
 
 
ALBERTA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035650
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      177,742
COMMITMENTS
   1,717   18,167    5,098  161,445  148,590  168,260  171,855    9,482    5,887

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      1,112)
       0    1,059      701    1,192      192    1,893    1,952     -781     -840

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.0     10.2      2.9     90.8     83.6     94.7     96.7      5.3      3.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       41)
       1        3        3       33       29       36       33
 
 
CHICAGO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       83,658
COMMITMENTS
   2,660      194    4,995   62,804   63,774   70,459   68,963   13,199   14,695

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      2,420)
  -2,779      194    2,776    1,966     -208    1,963    2,762      457     -342

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.2      0.2      6.0     75.1     76.2     84.2     82.4     15.8     17.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       1        1        1       20       18       22       19
 
 
HENRY HUB BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035652
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       72,277
COMMITMENTS
   2,922   10,298        0   67,163   60,065   70,085   70,363    2,192    1,914

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      2,160)
    -240    1,140     -780    3,252    2,544    2,232    2,904      -72     -744

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.0     14.2      0.0     92.9     83.1     97.0     97.4      3.0      2.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       4        2        0       17       19       21       21
 
 
HOUSTON SHIP CH BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035653
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      265,311
COMMITMENTS
  18,634    3,476    2,048  236,215  257,040  256,897  262,564    8,414    2,747

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     23,427)
    -447      976      382   23,756   22,193   23,691   23,551     -264     -124

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.0      1.3      0.8     89.0     96.9     96.8     99.0      3.2      1.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       57)
       5        3        5       42       45       49       51
 
 
NW PIPE ROCKIES BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035654
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      156,359
COMMITMENTS
  11,673    5,548    7,199  129,947  137,267  148,819  150,014    7,540    6,345

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     -2,252)
   3,405      731     -408   -4,027     -879   -1,030     -556   -1,222   -1,696

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.5      3.5      4.6     83.1     87.8     95.2     95.9      4.8      4.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       2        4        5       36       33       42       38
 
 
PANHANDLE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035655
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      145,609
COMMITMENTS
       0    3,947    4,700  127,506  124,293  132,206  132,940   13,403   12,669

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      4,887)
       0   -3,518      674    3,731    5,868    4,405    3,024      482    1,863

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      2.7      3.2     87.6     85.4     90.8     91.3      9.2      8.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       41)
       0        3        2       33       34       35       37
 
 
SOCAL BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-035657
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      184,199
COMMITMENTS
   8,991   38,295   12,780  156,003  125,023  177,774  176,098    6,425    8,101

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     -7,550)
  -4,568   12,019  -10,366    6,792   -8,693   -8,142   -7,040      592     -510

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.9     20.8      6.9     84.7     67.9     96.5     95.6      3.5      4.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       45)
       4        4        8       29       33       37       41
 
 
TRANSCO ZONE 6 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE             Code-035658
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       58,254
COMMITMENTS
       0        0        0   53,742   47,489   53,742   47,489    4,512   10,765

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     -2,794)
       0        0        0   -2,238   -1,122   -2,238   -1,122     -556   -1,672

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      0.0      0.0     92.3     81.5     92.3     81.5      7.7     18.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       0        0        0       19       21       19       21
 
 
HENRY HUB GAS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-03565B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    2,016,911
COMMITMENTS
 378,595   48,206  538,461  1082235  1417963  1999291  2004630   17,620   12,281

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     40,124)
  33,122   12,889  -20,413   26,172   45,426   38,881   37,902    1,243    2,222

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    18.8      2.4     26.7     53.7     70.3     99.1     99.4      0.9      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      147)
      26       18       38      100       85      140      128
 
 
HENRY HUB PENULTIMATE GAS SWAP - NEW YORK MERCANTILE EXCHANGE        Code-03565C
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      538,652
COMMITMENTS
 115,883   39,675  139,397  278,842  355,626  534,122  534,698    4,530    3,954

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     34,580)
   9,595    8,013   17,524    8,349   10,041   35,468   35,578     -888     -998

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.5      7.4     25.9     51.8     66.0     99.2     99.3      0.8      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       60)
      13       13       20       33       30       57       52
 
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE               Code-064657
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       78,277
COMMITMENTS
   9,239    3,203   12,854   55,122   61,497   77,215   77,554    1,063      724

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      1,019)
     164       63       15      850      930    1,029    1,009       -9       11

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.8      4.1     16.4     70.4     78.6     98.6     99.1      1.4      0.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       57)
       8        6       10       41       40       54       51
 
 
NYISO ZONE A LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465A
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       25,567
COMMITMENTS
   1,152    4,391      625   23,620   20,126   25,397   25,142      170      425

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        214)
       0        0        0      258      258      258      258      -44      -44

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.5     17.2      2.4     92.4     78.7     99.3     98.3      0.7      1.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       1        4        2       25       25       27       30
 
 
NYISO ZONE G LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       16,109
COMMITMENTS
   2,966      644      308   12,835   15,157   16,109   16,109        0        0

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        726)
       0       44        0      726      682      726      726        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    18.4      4.0      1.9     79.7     94.1    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       3        2        1       19       19       22       22
 
 
NYISO ZONE J LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465C
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       14,406
COMMITMENTS
   1,066    2,719        0   12,809   11,687   13,875   14,406      531        0

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:         88)
       0        0        0      254       88      254       88     -166        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.4     18.9      0.0     88.9     81.1     96.3    100.0      3.7      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       1        3        0       13       11       14       14
 
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE              Code-06465H
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       25,406
COMMITMENTS
   3,080    4,660      372   21,534   20,060   24,986   25,092      420      314

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        440)
     -80        0       80      680      326      680      406     -240       34

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.1     18.3      1.5     84.8     79.0     98.3     98.8      1.7      1.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       2        3        3       24       21       28       25
 
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06465M
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       28,560
COMMITMENTS
   3,370      140      540   22,955   27,708   26,865   28,388    1,695      172

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:     -1,938)
       0        0        0   -2,006   -1,944   -2,006   -1,944       68        6

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.8      0.5      1.9     80.4     97.0     94.1     99.4      5.9      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       2        1        3       27       27       30       30
 
 
NORTH ILL OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE             Code-06465N
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       22,806
COMMITMENTS
     580        0    1,460   20,198   21,206   22,238   22,666      568      140

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.5      0.0      6.4     88.6     93.0     97.5     99.4      2.5      0.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       2        0        2       13       15       15       17
 
 
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06465S
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       14,494
COMMITMENTS
     540      364    1,136   11,992   12,434   13,668   13,934      826      560

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:         56)
       0      -20       16       40      118       56      114        0      -58

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.7      2.5      7.8     82.7     85.8     94.3     96.1      5.7      3.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       2        1        2       14       15       17       17
 
 
CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE                Code-067651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:    1,595,396
COMMITMENTS
 179,188   92,845  515,419  837,450  912,864  1532057  1521127   63,339   74,269

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:   -174,849)
 -23,450   -9,310  -77,600  -59,693  -80,974 -160,743 -167,883  -14,106   -6,965

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.2      5.8     32.3     52.5     57.2     96.0     95.3      4.0      4.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      331)
     105      101      147       93      102      281      282
 
 
PALLADIUM - NEW YORK MERCANTILE EXCHANGE                             Code-075651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:       17,388
COMMITMENTS
   9,887    3,182    1,056    2,799   12,139   13,742   16,377    3,646    1,011

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:       -365)
    -938       96      207      171   -1,322     -560   -1,019      195      654

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    56.9     18.3      6.1     16.1     69.8     79.0     94.2     21.0      5.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      114)
      65        9        9       14       28       86       42
 
 
PLATINUM - NEW YORK MERCANTILE EXCHANGE                              Code-076651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 50 TROY OUNCES)                        OPEN INTEREST:        9,590
COMMITMENTS
   4,409    1,446      167    2,172    6,292    6,748    7,905    2,842    1,685

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:        232)
     -72      118      167      137     -560      232     -275        0      507

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    46.0     15.1      1.7     22.6     65.6     70.4     82.4     29.6     17.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       62)
      28        5        2       16       17       45       24
 
 
UNLEADED GASOLINE, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-111652
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      139,348
COMMITMENTS
  18,342    8,641   32,901   68,995   85,342  120,238  126,884   19,110   12,464

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:       -418)
  -2,057    2,734    3,030     -355   -4,603      618    1,161   -1,037   -1,579

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    13.2      6.2     23.6     49.5     61.2     86.3     91.1     13.7      8.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      148)
      42       23       38       63       73      126      115
 
 
GASOLINE BLENDSTOCK (RBOB) - NEW YORK MERCANTILE EXCHANGE            Code-111659
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/23/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:       50,096
COMMITMENTS
   7,826        0    2,612   37,079   44,736   47,517   47,348    2,579    2,748

CHANGES FROM 05/16/06 (CHANGE IN OPEN INTEREST:      2,277)
     575     -107      170    1,760    2,630    2,505    2,693     -228     -416

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.6      0.0      5.2     74.0     89.3     94.9     94.5      5.1      5.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       52)
       8        0        5       30       37       38       42
 

Updated May 26, 2006