NY RES FUEL 1.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE          Code-02165B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        5,263
COMMITMENTS
   1,080      675        0    3,908    4,158    4,988    4,833      275      430

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        255)
     120       25        0       85      180      205      205       50       50

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    20.5     12.8      0.0     74.3     79.0     94.8     91.8      5.2      8.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       1        4        0       18       17       19       21
 
 
NO. 2 HEATING OIL, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-022651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      185,507
COMMITMENTS
  25,728   18,743   31,899   99,768  102,766  157,395  153,408   28,112   32,099

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     -9,668)
   2,119   -1,084   -3,412   -7,831   -3,807   -9,124   -8,303     -544   -1,366

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    13.9     10.1     17.2     53.8     55.4     84.8     82.7     15.2     17.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      124)
      26       33       37       56       57      106      106
 
 
NATURAL GAS - NEW YORK MERCANTILE EXCHANGE                           Code-023651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(10,000 MMBTU'S)                                     OPEN INTEREST:      937,301
COMMITMENTS
  46,754   74,040  430,522  369,893  388,377  847,170  892,940   90,131   44,361

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:    -59,171)
     251     -444  -37,511  -24,029  -24,126  -61,289  -62,080    2,117    2,909

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.0      7.9     45.9     39.5     41.4     90.4     95.3      9.6      4.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      210)
      63       51       82       92       78      198      171
 
 
MICHCON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       56,033
COMMITMENTS
       0    1,236    2,279   48,906   46,478   51,185   49,993    4,848    6,040

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        839)
       0      -36     -272      958    1,007      686      699      153      140

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      2.2      4.1     87.3     82.9     91.3     89.2      8.7     10.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       0        1        1       18       17       19       18
 
 
PERMIAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       67,873
COMMITMENTS
   5,898    2,590    3,013   51,570   55,588   60,481   61,191    7,392    6,682

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        194)
    -810      120      486    1,138      686      814    1,292     -620   -1,098

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.7      3.8      4.4     76.0     81.9     89.1     90.2     10.9      9.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       4        1        3       19       20       24       23
 
 
M-3 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      107,174
COMMITMENTS
  11,967      289    1,070   81,836   92,615   94,873   93,974   12,301   13,200

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        466)
     600   -2,064     -856      297    1,790       41   -1,130      425    1,596

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.2      0.3      1.0     76.4     86.4     88.5     87.7     11.5     12.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       2        1        1       27       22       30       23
 
 
TCO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365D
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       64,825
COMMITMENTS
       0    1,778        0   58,609   55,136   58,609   56,914    6,216    7,911

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     -6,571)
       0        0        0   -6,967   -7,059   -6,967   -7,059      396      488

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      2.7      0.0     90.4     85.1     90.4     87.8      9.6     12.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       0        1        0       17       22       17       23
 
 
MALIN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365E
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       80,197
COMMITMENTS
       0   13,949      999   76,404   60,252   77,403   75,200    2,794    4,997

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,037)
       0    1,107      298      587     -426      885      979      152       58

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     17.4      1.2     95.3     75.1     96.5     93.8      3.5      6.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       0        3        2       21       18       23       21
 
 
PG&E CITYGATE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE              Code-02365F
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       67,897
COMMITMENTS
   9,578    8,205    2,657   46,617   50,256   58,852   61,118    9,045    6,779

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        358)
    -946        0      357    1,164     -321      575       36     -217      322

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    14.1     12.1      3.9     68.7     74.0     86.7     90.0     13.3     10.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       3        2        2       18       18       22       21
 
 
NGPL TEXOK BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                 Code-02365G
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      110,570
COMMITMENTS
     567        0    3,630   98,613   99,779  102,810  103,409    7,760    7,161

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,863)
     567   -1,592     -540    3,938    7,156    3,965    5,024   -2,102   -3,161

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.5      0.0      3.3     89.2     90.2     93.0     93.5      7.0      6.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
       1        0        1       25       25       26       26
 
 
DOMINION BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365N
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       79,672
COMMITMENTS
  10,520        0        0   60,373   71,755   70,893   71,755    8,779    7,917

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     -3,054)
    -180        0        0   -2,657   -3,422   -2,837   -3,422     -217      368

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    13.2      0.0      0.0     75.8     90.1     89.0     90.1     11.0      9.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       1        0        0       20       21       21       21
 
 
WAHA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                       Code-02365O
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       69,682
COMMITMENTS
       0    5,626    2,152   61,262   51,298   63,414   59,076    6,268   10,606

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        736)
       0      590      248    2,074    1,939    2,322    2,777   -1,586   -2,041

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      8.1      3.1     87.9     73.6     91.0     84.8      9.0     15.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       0        2        2       24       20       26       22
 
 
CIG BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365P
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       59,082
COMMITMENTS
     136        0    1,868   41,700   51,627   43,704   53,495   15,378    5,587

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.2      0.0      3.2     70.6     87.4     74.0     90.5     26.0      9.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       1        0        1       11       17       12       18
 
 
HENRY HUB INDEX SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-023A09
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       61,510
COMMITMENTS
   2,280    7,804        0   57,684   51,406   59,964   59,210    1,546    2,300

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.7     12.7      0.0     93.8     83.6     97.5     96.3      2.5      3.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       2        2        0       14       14       16       16
 
 
ALBERTA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035650
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      180,510
COMMITMENTS
       0   23,735    3,931  166,637  148,014  170,568  175,680    9,942    4,830

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        645)
       0   -2,029      604      433    1,890    1,037      465     -392      180

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     13.1      2.2     92.3     82.0     94.5     97.3      5.5      2.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       0        4        3       37       32       40       36
 
 
CHICAGO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       84,427
COMMITMENTS
   8,811    2,550    1,387   62,227   67,773   72,425   71,710   12,002   12,717

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,387)
  -1,071        0      115    3,491    1,603    2,535    1,718   -1,148     -331

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.4      3.0      1.6     73.7     80.3     85.8     84.9     14.2     15.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       2        1        1       16       17       18       19
 
 
HENRY HUB BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035652
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       81,713
COMMITMENTS
   2,280    7,804        0   77,517   69,093   79,797   76,897    1,916    4,816

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     10,518)
   2,280      860        0    9,250    6,700   11,530    7,560   -1,012    2,958

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.8      9.6      0.0     94.9     84.6     97.7     94.1      2.3      5.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       2        2        0       20       18       22       20
 
 
HOUSTON SHIP CH BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035653
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      217,857
COMMITMENTS
  12,048    1,330    1,655  197,154  205,397  210,857  208,382    7,000    9,475

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      6,136)
   1,867        0   -1,037    5,397    6,504    6,227    5,467      -91      669

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.5      0.6      0.8     90.5     94.3     96.8     95.7      3.2      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       46)
       3        1        5       35       39       40       44
 
 
NW PIPE ROCKIES BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035654
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      159,455
COMMITMENTS
   9,361      708   10,588  131,732  140,113  151,681  151,409    7,774    8,046

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,672)
  -1,482   -2,448    1,519    1,802    5,085    1,839    4,156     -167   -2,484

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.9      0.4      6.6     82.6     87.9     95.1     95.0      4.9      5.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       42)
       3        3        6       35       31       41       37
 
 
PANHANDLE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035655
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      152,196
COMMITMENTS
       0    8,359    3,301  138,348  130,547  141,649  142,207   10,547    9,989

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,849)
       0     -136      280    1,296    1,036    1,576    1,180      273      669

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      5.5      2.2     90.9     85.8     93.1     93.4      6.9      6.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       0        4        2       33       33       35       37
 
 
SOCAL BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-035657
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      192,904
COMMITMENTS
   5,863   29,820   27,045  155,342  132,681  188,250  189,546    4,654    3,358

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      3,499)
  -1,868   -3,559    2,544    3,372    4,679    4,048    3,664     -549     -165

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.0     15.5     14.0     80.5     68.8     97.6     98.3      2.4      1.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       3        5        8       28       33       36       41
 
 
TRANSCO ZONE 6 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE             Code-035658
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       56,757
COMMITMENTS
   7,272        0        0   45,481   45,540   52,753   45,540    4,004   11,217

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      3,580)
       0        0        0    4,292    4,618    4,292    4,618     -712   -1,038

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.8      0.0      0.0     80.1     80.2     92.9     80.2      7.1     19.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       2        0        0       14       17       16       17
 
 
HENRY HUB GAS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-03565B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    1,661,176
COMMITMENTS
 278,970   59,646  415,558  951,896  1174871  1646424  1650075   14,752   11,101

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     49,783)
  16,895    1,869    4,879   31,416   43,313   53,190   50,061   -3,407     -278

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.8      3.6     25.0     57.3     70.7     99.1     99.3      0.9      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      155)
      26       22       37      103       87      145      130
 
 
HENRY HUB PENULTIMATE GAS SWAP - NEW YORK MERCANTILE EXCHANGE        Code-03565C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      421,568
COMMITMENTS
  90,999   53,760   98,107  228,844  259,551  417,950  411,418    3,618   10,150

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     39,188)
  20,196    5,006    3,671   16,762   23,793   40,629   32,470   -1,441    6,718

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.6     12.8     23.3     54.3     61.6     99.1     97.6      0.9      2.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       65)
      16       12       23       35       29       61       54
 
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE               Code-064657
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       84,566
COMMITMENTS
  12,639    9,689   15,410   56,005   59,090   84,053   84,190      512      376

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        471)
    -387      -25      306      918    4,021      838    4,302     -367   -3,831

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    14.9     11.5     18.2     66.2     69.9     99.4     99.6      0.6      0.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       55)
       6        5       10       42       39       53       49
 
 
NYISO ZONE A LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       24,930
COMMITMENTS
   1,184    8,564    1,035   22,252   14,617   24,471   24,216      459      714

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        394)
       0      -86        0    1,532      744    1,532      658   -1,138     -264

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.7     34.4      4.2     89.3     58.6     98.2     97.1      1.8      2.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       3        5        4       24       22       29       29
 
 
NYISO ZONE G LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       14,791
COMMITMENTS
   4,156      808    1,323    9,099   12,660   14,578   14,791      213        0

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        884)
    -169        0        0    1,053    1,522      884    1,522        0     -638

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    28.1      5.5      8.9     61.5     85.6     98.6    100.0      1.4      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       3        3        1       14       14       17       18
 
 
NYISO ZONE J LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       12,740
COMMITMENTS
   1,238    4,262       83   10,765    8,395   12,086   12,740      654        0

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:         40)
       0     -255        0      298      295      298       40     -258        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.7     33.5      0.7     84.5     65.9     94.9    100.0      5.1      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       1        4        1       11       10       13       14
 
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE              Code-06465H
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       26,700
COMMITMENTS
   3,860   10,694      412   20,880   14,146   25,152   25,252    1,548    1,448

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        914)
     -20       20        0      934      654      914      674        0      240

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    14.5     40.1      1.5     78.2     53.0     94.2     94.6      5.8      5.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       2        5        4       21       19       26       25
 
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06465M
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       23,840
COMMITMENTS
   6,510    1,200    1,290   15,061   20,950   22,861   23,440      979      400

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:         14)
    -120      140     -120      304       84       64      104      -50      -90

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.3      5.0      5.4     63.2     87.9     95.9     98.3      4.1      1.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       36)
       2        3        4       28       25       32       30
 
 
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06465S
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       13,578
COMMITMENTS
     608      578    1,112   10,750   11,468   12,470   13,158    1,108      420

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        222)
       0        0        0      -18      222      -18      222      240        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.5      4.3      8.2     79.2     84.5     91.8     96.9      8.2      3.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       2        1        2       11       16       14       18
 
 
CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE                Code-067651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:    1,537,509
COMMITMENTS
 149,161   95,116  444,314  878,176  922,135  1471651  1461566   65,859   75,944

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:     14,801)
  12,861   -6,151   15,698  -16,009    6,206   12,550   15,752    2,251     -951

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.7      6.2     28.9     57.1     60.0     95.7     95.1      4.3      4.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      313)
     103      104      152       78       94      260      280
 
 
E-MINY CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE         Code-067655
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 500 BARRELS)                           OPEN INTEREST:       15,939
COMMITMENTS
  11,276    7,252       79        0      495   11,355    7,826    4,584    8,113

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    70.7     45.5      0.5      0.0      3.1     71.2     49.1     28.8     50.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      12        9        1        0        1       13       10
 
 
PALLADIUM - NEW YORK MERCANTILE EXCHANGE                             Code-075651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:       16,410
COMMITMENTS
  10,585    2,435      925    1,523   12,344   13,033   15,704    3,377      706

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,666)
   1,733      572      481     -617      587    1,597    1,640       69       26

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    64.5     14.8      5.6      9.3     75.2     79.4     95.7     20.6      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      145)
      90       10        6       13       30      108       44
 
 
PLATINUM - NEW YORK MERCANTILE EXCHANGE                              Code-076651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 50 TROY OUNCES)                        OPEN INTEREST:        8,887
COMMITMENTS
   4,390      972       27    1,882    6,214    6,299    7,213    2,588    1,674

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:        898)
     327     -147      -38      288      822      577      637      321      261

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    49.4     10.9      0.3     21.2     69.9     70.9     81.2     29.1     18.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       57)
      27        7        1       12       16       40       23
 
 
UNLEADED GASOLINE, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-111652
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      155,999
COMMITMENTS
  23,330    8,174   24,476   90,512  108,714  138,318  141,364   17,681   14,635

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:    -10,637)
    -681      510   -4,628   -5,101   -6,470  -10,410  -10,588     -227      -49

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.0      5.2     15.7     58.0     69.7     88.7     90.6     11.3      9.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      154)
      46       25       37       65       75      128      121
 
 
GASOLINE BLENDSTOCK (RBOB) - NEW YORK MERCANTILE EXCHANGE            Code-111659
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/28/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:       30,913
COMMITMENTS
   5,060      120    1,047   22,243   27,897   28,350   29,064    2,563    1,849

CHANGES FROM 03/21/06 (CHANGE IN OPEN INTEREST:      1,391)
     -20      100      213      510      447      703      760      688      631

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.4      0.4      3.4     72.0     90.2     91.7     94.0      8.3      6.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       3        1        3       18       22       23       25
 

Updated March 31, 2006