NY RES FUEL 1.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE          Code-02165B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| 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    1,335       25    4,466    4,292    5,571    5,652      563      482

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:         35)
       0      -75        0       35       75       35        0        0       35

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.6     21.8      0.4     72.8     70.0     90.8     92.1      9.2      7.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       1        4        1       15       20       17       24
 
 
NO. 2 HEATING OIL, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-022651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      198,157
COMMITMENTS
  21,330   23,644   40,184  100,027  106,110  161,541  169,938   36,616   28,219

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:     -2,043)
  -4,760      604    1,221      666   -3,188   -2,873   -1,362      830     -681

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.8     11.9     20.3     50.5     53.5     81.5     85.8     18.5     14.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      129)
      27       33       42       54       61      111      110
 
 
NATURAL GAS - NEW YORK MERCANTILE EXCHANGE                           Code-023651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(10,000 MMBTU'S)                                     OPEN INTEREST:    1,191,816
COMMITMENTS
  81,972  104,101  553,616  471,568  489,688  1107156  1147404   84,661   44,412

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:     67,844)
   8,415    3,809   34,052   28,078   31,647   70,546   69,508   -2,702   -1,664

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.9      8.7     46.5     39.6     41.1     92.9     96.3      7.1      3.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      245)
      73       70      104       95       85      220      212
 
 
MICHCON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365A
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       69,285
COMMITMENTS
       0   12,771    3,571   57,732   48,583   61,303   64,925    7,982    4,360

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      1,681)
       0      617       74    1,461    1,361    1,535    2,052      146     -371

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     18.4      5.2     83.3     70.1     88.5     93.7     11.5      6.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       0        2        1       17       21       18       23
 
 
PERMIAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       69,044
COMMITMENTS
   6,855    2,407    5,864   49,168   54,254   61,887   62,525    7,157    6,519

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      2,208)
   1,105   -3,273    1,817     -562    3,788    2,360    2,332     -152     -124

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.9      3.5      8.5     71.2     78.6     89.6     90.6     10.4      9.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       4        1        4       25       20       30       24
 
 
M-3 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365C
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      125,328
COMMITMENTS
   4,304      594      765  109,241  113,930  114,310  115,289   11,018   10,039

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        346)
  -1,224        0        0      843    1,773     -381    1,773      727   -1,427

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.4      0.5      0.6     87.2     90.9     91.2     92.0      8.8      8.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
       2        1        1       27       26       30       27
 
 
TCO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365D
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       74,582
COMMITMENTS
  10,272        0        0   57,191   65,136   67,463   65,136    7,119    9,446

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      3,062)
   1,712        0        0    1,740    3,308    3,452    3,308     -390     -246

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    13.8      0.0      0.0     76.7     87.3     90.5     87.3      9.5     12.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       1        0        0       20       20       21       20
 
 
MALIN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365E
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       85,351
COMMITMENTS
   1,044   12,850    3,972   77,415   62,055   82,431   78,877    2,920    6,474

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      2,974)
       0     -882    2,680     -813     -720    1,867    1,078    1,107    1,896

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.2     15.1      4.7     90.7     72.7     96.6     92.4      3.4      7.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       1        4        2       20       16       23       20
 
 
PG&E CITYGATE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE              Code-02365F
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       67,330
COMMITMENTS
   9,348   10,182    2,668   48,314   48,035   60,330   60,885    7,000    6,445

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        711)
     -94      828     -274      835     -207      467      347      244      364

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    13.9     15.1      4.0     71.8     71.3     89.6     90.4     10.4      9.6

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 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      107,990
COMMITMENTS
       0    7,644    3,141   98,712   88,842  101,853   99,627    6,137    8,363

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      4,648)
       0      229       93    5,441    4,933    5,534    5,255     -886     -607

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      7.1      2.9     91.4     82.3     94.3     92.3      5.7      7.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       0        1        1       30       28       31       29
 
 
SUMAS BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365J
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       44,014
COMMITMENTS
   3,843    3,994      675   32,170   34,635   36,688   39,304    7,326    4,710

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      2,366)
       0      500      240    2,092    1,502    2,332    2,242       34      124

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.7      9.1      1.5     73.1     78.7     83.4     89.3     16.6     10.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       1        2        1       14       15       16       17
 
 
DOMINION BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365N
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      100,069
COMMITMENTS
   7,996        0    1,440   82,427   92,946   91,863   94,386    8,206    5,683

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      6,044)
      98        0    1,440    4,816    5,268    6,354    6,708     -310     -664

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.0      0.0      1.4     82.4     92.9     91.8     94.3      8.2      5.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       1        0        1       26       24       27       25
 
 
WAHA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                       Code-02365O
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       80,237
COMMITMENTS
       0   13,663    2,748   72,382   54,674   75,130   71,085    5,107    9,152

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      6,385)
       0    5,410     -539    6,762    2,008    6,223    6,879      162     -494

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     17.0      3.4     90.2     68.1     93.6     88.6      6.4     11.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
       0        3        2       27       22       29       25
 
 
CIG BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365P
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       57,863
COMMITMENTS
       0    2,067    2,816   44,590   46,553   47,406   51,436   10,457    6,427

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:     -1,957)
       0   -1,487    1,244   -1,992   -2,175     -748   -2,418   -1,209      461

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      3.6      4.9     77.1     80.5     81.9     88.9     18.1     11.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       0        1        1       18       20       19       21
 
 
HENRY HUB INDEX SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-023A09
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       50,044
COMMITMENTS
   3,162    6,450      780   44,638   41,838   48,580   49,068    1,464      976

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:         90)
   1,710   -2,400      780   -2,640      734     -150     -886      240      976

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.3     12.9      1.6     89.2     83.6     97.1     98.0      2.9      2.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
       4        2        1       10       13       15       15
 
 
ALBERTA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035650
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      176,630
COMMITMENTS
   1,717   17,108    4,397  160,253  148,398  166,367  169,903   10,263    6,727

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      7,914)
   1,284      139      120    6,476    6,706    7,880    6,965       34      949

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.0      9.7      2.5     90.7     84.0     94.2     96.2      5.8      3.8

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 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       81,238
COMMITMENTS
   5,439        0    2,219   60,838   63,982   68,496   66,201   12,742   15,037

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        807)
    -662        0      282      857      499      477      781      330       26

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.7      0.0      2.7     74.9     78.8     84.3     81.5     15.7     18.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       2        0        1       18       17       20       18
 
 
HENRY HUB BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035652
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       70,117
COMMITMENTS
   3,162    9,158      780   63,911   57,521   67,853   67,459    2,264    2,658

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        154)
   1,710   -2,400      780   -1,170      848    1,320     -772   -1,166      926

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.5     13.1      1.1     91.1     82.0     96.8     96.2      3.2      3.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       4        2        1       15       16       20       18
 
 
HOUSTON SHIP CH BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035653
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      241,884
COMMITMENTS
  19,081    2,500    1,666  212,459  234,847  233,206  239,013    8,678    2,871

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      4,934)
   3,194     -312     -848    2,888    5,895    5,234    4,735     -300      199

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.9      1.0      0.7     87.8     97.1     96.4     98.8      3.6      1.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       57)
       5        3        5       41       44       48       50
 
 
NW PIPE ROCKIES BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035654
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      158,611
COMMITMENTS
   8,268    4,817    7,607  133,974  138,146  149,849  150,570    8,762    8,041

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      3,408)
     476   -1,528     -631    1,600    4,425    1,445    2,266    1,963    1,142

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.2      3.0      4.8     84.5     87.1     94.5     94.9      5.5      5.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       45)
       2        4        5       37       34       42       40
 
 
PANHANDLE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035655
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      140,722
COMMITMENTS
       0    7,465    4,026  123,775  118,425  127,801  129,916   12,921   10,806

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      4,651)
  -3,534    4,703       -9    7,566     -515    4,023    4,179      628      472

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      5.3      2.9     88.0     84.2     90.8     92.3      9.2      7.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       42)
       0        3        2       33       35       35       38
 
 
SOCAL BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-035657
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      191,749
COMMITMENTS
  13,559   26,276   23,146  149,211  133,716  185,916  183,138    5,833    8,611

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      5,208)
     519   -5,149    2,067    2,023    6,143    4,609    3,061      599    2,147

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.1     13.7     12.1     77.8     69.7     97.0     95.5      3.0      4.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       45)
       4        4        7       27       33       35       40
 
 
TRANSCO ZONE 6 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE             Code-035658
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       61,048
COMMITMENTS
       0        0        0   55,980   48,611   55,980   48,611    5,068   12,437

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      1,118)
       0        0        0      522       79      522       79      596    1,039

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      0.0      0.0     91.7     79.6     91.7     79.6      8.3     20.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       0        0        0       19       19       19       19
 
 
HENRY HUB GAS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-03565B
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    1,976,787
COMMITMENTS
 345,473   35,317  558,874  1056063  1372537  1960410  1966728   16,377   10,059

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:    105,408)
  18,334     -895   31,341   61,684   75,722  111,359  106,168   -5,951     -760

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.5      1.8     28.3     53.4     69.4     99.2     99.5      0.8      0.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      142)
      26       15       35       98       83      135      123
 
 
HENRY HUB PENULTIMATE GAS SWAP - NEW YORK MERCANTILE EXCHANGE        Code-03565C
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      504,072
COMMITMENTS
 106,288   31,662  121,873  270,493  345,585  498,654  499,120    5,418    4,952

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:     11,727)
  11,905   -7,347    7,041   -8,249   11,901   10,697   11,595    1,030      132

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.1      6.3     24.2     53.7     68.6     98.9     99.0      1.1      1.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       57)
      12       13       20       31       29       54       51
 
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE               Code-064657
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       77,258
COMMITMENTS
   9,075    3,140   12,839   54,272   60,566   76,186   76,545    1,072      713

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:     -1,241)
    -203     -124      148   -1,267   -1,282   -1,322   -1,258       82       18

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.7      4.1     16.6     70.2     78.4     98.6     99.1      1.4      0.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       55)
       7        5        9       41       40       52       50
 
 
NYISO ZONE A LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465A
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       25,353
COMMITMENTS
   1,152    4,391      625   23,362   19,868   25,139   24,884      214      469

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        111)
       0        0        0      273      273      273      273     -162     -162

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.5     17.3      2.5     92.1     78.4     99.2     98.2      0.8      1.8

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 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       15,383
COMMITMENTS
   2,966      600      308   12,109   14,475   15,383   15,383        0        0

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:         22)
       0        0        0       22       22       22       22        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    19.3      3.9      2.0     78.7     94.1    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       3        2        1       18       18       21       21
 
 
NYISO ZONE J LBMP SWAP - NEW YORK MERCANTILE EXCHANGE                Code-06465C
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS 0F 400 MEGAWATT HOURS)                    OPEN INTEREST:       14,318
COMMITMENTS
   1,066    2,719        0   12,555   11,599   13,621   14,318      697        0

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      2,117)
       0     -126        0    2,074    2,243    2,074    2,117       43        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     7.4     19.0      0.0     87.7     81.0     95.1    100.0      4.9      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       1        3        0       12       11       13       14
 
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE              Code-06465H
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       24,966
COMMITMENTS
   3,160    4,660      292   20,854   19,734   24,306   24,686      660      280

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        158)
       0        0        0      200      240      200      240      -42      -82

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.7     18.7      1.2     83.5     79.0     97.4     98.9      2.6      1.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       2        3        3       23       21       27       25
 
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06465M
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       30,498
COMMITMENTS
   3,370      140      540   24,961   29,652   28,871   30,332    1,627      166

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        -86)
    -740        0      -20      508      -56     -252      -76      166      -10

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.0      0.5      1.8     81.8     97.2     94.7     99.5      5.3      0.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       2        1        3       27       27       30       30
 
 
ISO NEW ENG OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06465S
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       14,438
COMMITMENTS
     540      384    1,120   11,952   12,316   13,612   13,820      826      618

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:        122)
       0        0        0      160      160      160      160      -38      -38

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     3.7      2.7      7.8     82.8     85.3     94.3     95.7      5.7      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       2        1        2       14       15       17       17
 
 
CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE                Code-067651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:    1,770,245
COMMITMENTS
 202,638  102,155  593,018  897,144  993,838  1692800  1689010   77,445   81,234

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:    -17,581)
     184    9,062    7,659  -18,442  -29,812  -10,598  -13,091   -6,983   -4,491

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.4      5.8     33.5     50.7     56.1     95.6     95.4      4.4      4.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      354)
     135       90      166       97      110      305      308
 
 
E-MINY CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE         Code-067655
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 500 BARRELS)                           OPEN INTEREST:       26,146
COMMITMENTS
  13,208   16,588      722    1,368      593   15,298   17,903   10,848    8,243

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      3,292)
   1,718      510      569      953      -66    3,240    1,013       52    2,279

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    50.5     63.4      2.8      5.2      2.3     58.5     68.5     41.5     31.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
      10        9        3        2        2       15       12
 
 
PALLADIUM - NEW YORK MERCANTILE EXCHANGE                             Code-075651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:       17,753
COMMITMENTS
  10,825    3,086      849    2,628   13,461   14,302   17,396    3,451      357

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:       -626)
    -355     -172      -29     -263     -243     -647     -444       21     -182

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    61.0     17.4      4.8     14.8     75.8     80.6     98.0     19.4      2.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      126)
      74        9        8       16       30       98       41
 
 
PLATINUM - NEW YORK MERCANTILE EXCHANGE                              Code-076651
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 50 TROY OUNCES)                        OPEN INTEREST:        9,358
COMMITMENTS
   4,481    1,328        0    2,035    6,852    6,516    8,180    2,842    1,178

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:       -652)
  -1,032      117      -48      409     -843     -671     -774       19      122

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    47.9     14.2      0.0     21.7     73.2     69.6     87.4     30.4     12.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       62)
      28        6        0       13       20       41       26
 
 
UNLEADED GASOLINE, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-111652
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      139,766
COMMITMENTS
  20,399    5,907   29,871   69,350   89,945  119,620  125,723   20,146   14,043

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      1,397)
  -1,340   -1,560      775    5,870    4,710    5,306    3,925   -3,909   -2,528

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    14.6      4.2     21.4     49.6     64.4     85.6     90.0     14.4     10.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      139)
      44       16       34       57       71      115      108
 
 
GASOLINE BLENDSTOCK (RBOB) - NEW YORK MERCANTILE EXCHANGE            Code-111659
OPTION AND FUTURES COMBINED POSITIONS AS OF 05/16/06          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:       47,820
COMMITMENTS
   7,251      107    2,442   35,319   42,106   45,012   44,655    2,808    3,165

CHANGES FROM 05/09/06 (CHANGE IN OPEN INTEREST:      3,024)
     151      107      598    2,099    2,090    2,848    2,795      176      229

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.2      0.2      5.1     73.9     88.1     94.1     93.4      5.9      6.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       47)
       5        2        5       31       33       38       38
 

Updated May 19, 2006