NY RES FUEL 1.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE          Code-02165B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        4,568
COMMITMENTS
     960      175        0    3,443    4,013    4,403    4,188      165      380

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:       -612)
       0     -875        0     -569      382     -569     -493      -43     -119

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.0      3.8      0.0     75.4     87.9     96.4     91.7      3.6      8.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       1        2        0       16       17       17       19
 
 
NO. 2 HEATING OIL, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-022651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      196,883
COMMITMENTS
  23,850   23,198   33,742  109,777  102,792  167,369  159,733   29,514   37,150

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     12,442)
     688   -2,281    4,899    2,019    4,847    7,606    7,465    4,836    4,977

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.1     11.8     17.1     55.8     52.2     85.0     81.1     15.0     18.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      133)
      26       39       37       57       58      105      116
 
 
NATURAL GAS - NEW YORK MERCANTILE EXCHANGE                           Code-023651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(10,000 MMBTU'S)                                     OPEN INTEREST:      952,862
COMMITMENTS
  41,927   71,302  441,587  385,687  403,788  869,201  916,676   83,661   36,186

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     15,483)
   1,872    1,150     -132    9,207   10,520   10,947   11,537    4,536    3,946

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.4      7.5     46.3     40.5     42.4     91.2     96.2      8.8      3.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      216)
      62       56       91       93       83      203      185
 
 
MICHCON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       51,424
COMMITMENTS
       0    1,036    1,907   44,791   42,489   46,698   45,432    4,726    5,992

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,692)
    -353    1,036       44   -1,411   -1,963   -1,720     -883       28     -809

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      2.0      3.7     87.1     82.6     90.8     88.3      9.2     11.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       0        1        1       17       17       18       18
 
 
PERMIAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       60,321
COMMITMENTS
   3,599    5,187    1,952   46,922   44,972   52,473   52,111    7,848    8,210

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,404)
       2     -339      191   -2,401   -2,939   -2,208   -3,087      804    1,683

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.0      8.6      3.2     77.8     74.6     87.0     86.4     13.0     13.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       2        3        3       17       16       22       19
 
 
M-3 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       96,314
COMMITMENTS
   8,767    2,353    1,926   72,744   80,525   83,437   84,804   12,877   11,510

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -6,892)
  -1,383     -403     -682   -8,915   -7,749  -10,980   -8,834    4,088    1,942

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.1      2.4      2.0     75.5     83.6     86.6     88.0     13.4     12.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       1        2        2       23       21       26       23
 
 
TCO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365D
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       65,459
COMMITMENTS
       0    1,654        0   58,394   57,080   58,394   58,734    7,065    6,725

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:      3,293)
    -248      910        0    2,867    4,239    2,619    5,149      674   -1,856

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      2.5      0.0     89.2     87.2     89.2     89.7     10.8     10.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       0        1        0       17       19       17       20
 
 
MALIN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365E
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       74,155
COMMITMENTS
       0    9,785      399   71,356   57,815   71,755   67,999    2,400    6,156

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -3,501)
       0   -1,143     -177   -4,043   -6,353   -4,220   -7,673      719    4,172

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     13.2      0.5     96.2     78.0     96.8     91.7      3.2      8.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       0        2        1       20       15       21       17
 
 
PG&E CITYGATE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE              Code-02365F
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       66,249
COMMITMENTS
  10,734    8,205    2,112   44,899   48,893   57,745   59,210    8,504    7,039

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -5,937)
   2,225      -62     -715   -7,093   -6,006   -5,583   -6,783     -354      846

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.2     12.4      3.2     67.8     73.8     87.2     89.4     12.8     10.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       3        2        2       17       18       21       21
 
 
NGPL TEXOK BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                 Code-02365G
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      106,282
COMMITMENTS
       0    7,800    1,629   95,699   86,990   97,328   96,419    8,954    9,863

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,129)
       0    3,450     -880     -898   -3,663   -1,778   -1,093      649      -36

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      7.3      1.5     90.0     81.8     91.6     90.7      8.4      9.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       0        1        1       23       22       24       23
 
 
DOMINION BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365N
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       72,290
COMMITMENTS
  19,260        0        0   43,723   65,686   62,983   65,686    9,307    6,604

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:      4,828)
     -99        0     -552    2,900    4,227    2,249    3,675    2,579    1,153

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    26.6      0.0      0.0     60.5     90.9     87.1     90.9     12.9      9.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       1        0        0       13       19       14       19
 
 
WAHA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                       Code-02365O
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       67,883
COMMITMENTS
   1,684      950    3,162   53,490   51,708   58,336   55,820    9,547   12,063

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,087)
  -2,021     -137    1,021   -1,557   -3,674   -2,557   -2,790    1,470    1,703

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.5      1.4      4.7     78.8     76.2     85.9     82.2     14.1     17.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       1        1        2       20       15       22       17
 
 
ALBERTA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035650
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      165,607
COMMITMENTS
       0   22,997    2,112  150,512  134,528  152,624  159,637   12,983    5,970

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:    -10,476)
    -884     -712   -1,745  -10,355   -9,836  -12,984  -12,293    2,508    1,817

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     13.9      1.3     90.9     81.2     92.2     96.4      7.8      3.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       40)
       0        3        2       34       31       36       34
 
 
CHICAGO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       82,225
COMMITMENTS
  15,782        0      520   52,724   70,270   69,026   70,790   13,199   11,435

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,262)
   4,296   -1,973   -1,227   -7,621   -2,934   -4,552   -6,134    3,290    4,872

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    19.2      0.0      0.6     64.1     85.5     83.9     86.1     16.1     13.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       2        0        1       13       15       15       16
 
 
HOUSTON SHIP CH BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035653
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      205,426
COMMITMENTS
   7,691    1,330    2,968  186,002  192,468  196,661  196,766    8,765    8,660

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -5,401)
   1,779      507   -1,350   -4,187   -6,953   -3,758   -7,796   -1,643    2,395

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.7      0.6      1.4     90.5     93.7     95.7     95.8      4.3      4.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       45)
       3        1        4       34       36       39       40
 
 
NW PIPE ROCKIES BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035654
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      152,159
COMMITMENTS
  11,681    1,152    9,008  125,700  131,260  146,389  141,420    5,770   10,739

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:    -10,972)
  -3,199   -1,896      204   -7,983  -11,975  -10,978  -13,667        6    2,695

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.7      0.8      5.9     82.6     86.3     96.2     92.9      3.8      7.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       39)
       4        2        5       31       26       37       31
 
 
PANHANDLE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035655
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      146,173
COMMITMENTS
   9,080    5,232    1,206  124,865  124,433  135,151  130,871   11,022   15,302

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -8,599)
   5,725      -37   -2,537  -14,770   -5,920  -11,582   -8,494    2,983     -105

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.2      3.6      0.8     85.4     85.1     92.5     89.5      7.5     10.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       39)
       1        2        2       28       29       30       32
 
 
SOCAL BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-035657
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      187,067
COMMITMENTS
   5,287   34,204   22,789  153,668  127,013  181,744  184,006    5,323    3,061

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:    -10,813)
    -838     -281   -2,562   -6,330   -8,443   -9,730  -11,286   -1,083      473

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.8     18.3     12.2     82.1     67.9     97.2     98.4      2.8      1.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       4        4        7       27       32       35       39
 
 
TRANSCO ZONE 6 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE             Code-035658
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       46,351
COMMITMENTS
   3,604        0        0   37,867   33,082   41,471   33,082    4,880   13,269

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -6,648)
  -1,240   -3,019        0   -6,480   -7,819   -7,720  -10,838    1,072    4,190

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.8      0.0      0.0     81.7     71.4     89.5     71.4     10.5     28.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       2        0        0       13       14       15       14
 
 
HENRY HUB GAS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-03565B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    1,549,479
COMMITMENTS
 233,101   27,449  421,127  875,410  1090333  1529638  1538909   19,841   10,570

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     68,736)
 -13,443    2,929   33,580   47,240   35,380   67,377   71,889    1,359   -3,153

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.0      1.8     27.2     56.5     70.4     98.7     99.3      1.3      0.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      133)
      27       14       35       87       77      126      114
 
 
HENRY HUB PENULTIMATE GAS SWAP - NEW YORK MERCANTILE EXCHANGE        Code-03565C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      326,264
COMMITMENTS
  67,448   28,895   86,756  166,333  206,872  320,537  322,523    5,727    3,741

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     19,650)
    -866    4,842    4,376   14,730    9,610   18,240   18,828    1,410      822

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    20.7      8.9     26.6     51.0     63.4     98.2     98.9      1.8      1.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       51)
      12        9       19       29       26       49       46
 
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE               Code-064657
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       82,427
COMMITMENTS
  13,370    9,434   14,893   53,325   57,299   81,588   81,627      839      800

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:        770)
     -55      892      -91      896      -71      750      730       20       40

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.2     11.4     18.1     64.7     69.5     99.0     99.0      1.0      1.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       56)
       7        4        9       43       39       54       48
 
 
NYISO ZONE A LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465A
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       23,112
COMMITMENTS
   1,230    7,463    1,181   19,974   13,530   22,385   22,174      727      938

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,911)
     -80     -596      -64   -1,791   -1,231   -1,935   -1,891       24      -20

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.3     32.3      5.1     86.4     58.5     96.9     95.9      3.1      4.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       2        4        5       22       19       27       25
 
 
NYISO ZONE G LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465B
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       12,935
COMMITMENTS
   3,571      728    1,367    7,784   10,541   12,722   12,636      213      299

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,000)
     260     -240     -340     -880     -719     -960   -1,299      -40      299

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    27.6      5.6     10.6     60.2     81.5     98.4     97.7      1.6      2.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       3        2        1       12       13       15       16
 
 
NYISO ZONE J LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465C
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       11,785
COMMITMENTS
   1,238    4,262      105    9,788    7,418   11,131   11,785      654        0

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:       -565)
    -160      -25        0     -365     -540     -525     -565      -40        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.5     36.2      0.9     83.1     62.9     94.5    100.0      5.5      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       1        3        1       11       10       13       13
 
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE              Code-06465H
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       24,920
COMMITMENTS
   3,880   10,314      452   19,280   12,986   23,612   23,752    1,308    1,168

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,578)
    -180      100     -416   -1,162   -1,282   -1,758   -1,598      180       20

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.6     41.4      1.8     77.4     52.1     94.8     95.3      5.2      4.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       2        5        5       20       19       26       25
 
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06465M
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| 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
   7,110    1,650      810   13,927   19,896   21,847   22,356      959      450

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:       -926)
     -70      230       80   -1,074   -1,234   -1,064     -924      138       -2

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    31.2      7.2      3.6     61.1     87.2     95.8     98.0      4.2      2.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
       3        2        4       27       24       31       29
 
 
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06465S
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       12,694
COMMITMENTS
     540      906    1,164   10,306   10,204   12,010   12,274      684      420

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:       -392)
    -100        4      -60     -400     -296     -560     -352      168      -40

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.3      7.1      9.2     81.2     80.4     94.6     96.7      5.4      3.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       1        2        2       11       16       14       18
 
 
CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE                Code-067651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:    1,589,852
COMMITMENTS
 135,328  102,252  438,158  942,129  970,554  1515615  1510964   74,237   78,888

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     37,844)
   2,266    2,698    6,721   27,101   27,742   36,088   37,161    1,756      683

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.5      6.4     27.6     59.3     61.0     95.3     95.0      4.7      5.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      301)
     104       88      137       89       94      259      263
 
 
PALLADIUM - NEW YORK MERCANTILE EXCHANGE                             Code-075651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:       15,751
COMMITMENTS
   8,525    1,791      513    2,861   12,850   11,899   15,154    3,852      597

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:     -1,154)
     301       88     -393   -1,428   -1,167   -1,520   -1,472      366      318

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    54.1     11.4      3.3     18.2     81.6     75.5     96.2     24.5      3.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      134)
      83        7        8       17       26      108       36
 
 
PLATINUM - NEW YORK MERCANTILE EXCHANGE                              Code-076651
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 50 TROY OUNCES)                        OPEN INTEREST:        8,773
COMMITMENTS
   4,467    1,107       97    1,767    6,181    6,331    7,385    2,442    1,388

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:        193)
     166      -63     -139      215      155      242      -47      -49      240

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    50.9     12.6      1.1     20.1     70.5     72.2     84.2     27.8     15.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       55)
      20        8        2       12       17       33       27
 
 
UNLEADED GASOLINE, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-111652
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      176,267
COMMITMENTS
  27,061   18,775   28,619  100,838  110,870  156,517  158,263   19,750   18,004

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:      3,326)
  -2,840      342    2,727    2,397   -1,731    2,285    1,338    1,042    1,988

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.4     10.7     16.2     57.2     62.9     88.8     89.8     11.2     10.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      175)
      45       36       48       68       83      140      148
 
 
GASOLINE BLENDSTOCK (RBOB) - NEW YORK MERCANTILE EXCHANGE            Code-111659
OPTION AND FUTURES COMBINED POSITIONS AS OF 03/07/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:       25,650
COMMITMENTS
   3,644        0      801   18,884   22,285   23,329   23,086    2,321    2,564

CHANGES FROM 02/28/06 (CHANGE IN OPEN INTEREST:      3,489)
     114        0      451    2,002    2,075    2,567    2,526      922      963

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    14.2      0.0      3.1     73.6     86.9     91.0     90.0      9.0     10.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       3        0        3       14       20       19       23
 

Updated March 10, 2006