GULF # 6 FUEL 3.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE        Code-02165A
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        5,637
COMMITMENTS
      25        0        0    4,319    5,099    4,344    5,099    1,293      538

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -2,301)
      25        0        0   -1,786   -2,191   -1,761   -2,191     -540     -110

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.4      0.0      0.0     76.6     90.5     77.1     90.5     22.9      9.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       31)
       1        0        0       21       20       22       20
 
 
NY RES FUEL 1.0% SULFUR SWAP - NEW YORK MERCANTILE EXCHANGE          Code-02165B
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        7,748
COMMITMENTS
      50      920       75    7,488    6,548    7,613    7,543      135      205

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:       -798)
       0      100      -50     -668     -988     -718     -938      -80      140

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.6     11.9      1.0     96.6     84.5     98.3     97.4      1.7      2.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       38)
       1        3        1       25       26       27       29
 
 
EUR 3.5% FUEL OIL RTD CAL SWAP - NEW YORK MERCANTILE EXCHANGE        Code-02165E
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 METRIC TONS)                     OPEN INTEREST:        2,893
COMMITMENTS
       0        0        0    2,269    2,141    2,269    2,141      624      752

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:       -520)
     -20        0      -15     -335     -436     -370     -451     -150      -69

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      0.0      0.0     78.4     74.0     78.4     74.0     21.6     26.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       0        0        0       21       21       21       21
 
 
SING FUEL OIL 180 CAL SWAP - NEW YORK MERCANTILE EXCHANGE            Code-02165G
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 METRIC TONS)                     OPEN INTEREST:        3,564
COMMITMENTS
      65        0       45    3,021    2,972    3,131    3,017      433      547

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:       -803)
      60        0       10     -753     -656     -683     -646     -120     -157

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.8      0.0      1.3     84.8     83.4     87.9     84.7     12.1     15.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
       2        0        1       28       30       30       31
 
 
NO. 2 HEATING OIL, N.Y. HARBOR - NEW YORK MERCANTILE EXCHANGE        Code-022651
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      261,937
COMMITMENTS
  43,725   17,648   43,056  139,355  173,825  226,137  234,529   35,800   27,408

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      6,208)
   4,468       51    2,297   -1,922    3,553    4,843    5,900    1,365      308

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.7      6.7     16.4     53.2     66.4     86.3     89.5     13.7     10.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      153)
      48       22       38       62       78      130      122
 
 
SING GASOIL SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02265J
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 BARRELS)                          OPEN INTEREST:        7,345
COMMITMENTS
   1,100       50      500    5,525    6,795    7,125    7,345      220        0

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -2,300)
    -900      -50        0   -1,390   -2,200   -2,290   -2,250      -10      -50

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.0      0.7      6.8     75.2     92.5     97.0    100.0      3.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       1        1        3       18       26       21       29
 
 
NATURAL GAS - NEW YORK MERCANTILE EXCHANGE                           Code-023651
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(10,000 MMBTU'S)                                     OPEN INTEREST:    1,268,008
COMMITMENTS
 129,109  306,170  459,786  603,795  470,329  1192689  1236285   75,319   31,723

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -4,569)
   1,284    7,126   -2,366   -5,013   -5,345   -6,095     -585    1,527   -3,984

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.2     24.1     36.3     47.6     37.1     94.1     97.5      5.9      2.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      229)
      86       51       96       76       74      219      175
 
 
MICHCON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365A
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       96,661
COMMITMENTS
       0   12,191    1,829   85,766   70,263   87,595   84,283    9,066   12,378

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      1,171)
       0        0        0      812      386      812      386      359      785

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     12.6      1.9     88.7     72.7     90.6     87.2      9.4     12.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       0        4        2       22       18       24       22
 
 
PERMIAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365B
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       83,449
COMMITMENTS
   3,587   11,992    2,137   70,219   59,577   75,943   73,706    7,506    9,743

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:        111)
       0    1,684     -202      935     -364      733    1,118     -622   -1,007

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.3     14.4      2.6     84.1     71.4     91.0     88.3      9.0     11.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       2        2        4       26       23       30       27
 
 
M-3 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365C
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      116,875
COMMITMENTS
   6,358        0    3,056   96,982  104,381  106,396  107,437   10,479    9,438

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -3,554)
  -2,597        0   -1,861    1,404   -1,848   -3,054   -3,709     -500      155

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.4      0.0      2.6     83.0     89.3     91.0     91.9      9.0      8.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       2        0        1       23       23       25       24
 
 
TCO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                        Code-02365D
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      101,249
COMMITMENTS
  11,408    2,513    4,785   75,074   81,133   91,267   88,431    9,982   12,818

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:    -10,398)
  -1,860       -8   -1,402   -5,051   -8,824   -8,313  -10,234   -2,085     -164

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    11.3      2.5      4.7     74.1     80.1     90.1     87.3      9.9     12.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       36)
       2        2        2       21       27       25       29
 
 
MALIN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-02365E
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       57,927
COMMITMENTS
   9,011        0    4,332   37,500   47,583   50,843   51,915    7,084    6,012

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      4,549)
   1,381        0       92    1,000    3,816    2,473    3,908    2,076      641

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.6      0.0      7.5     64.7     82.1     87.8     89.6     12.2     10.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       2        0        1       14       18       16       19
 
 
PG&E CITYGATE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE              Code-02365F
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       77,143
COMMITMENTS
   4,045      457    5,552   61,207   60,794   70,804   66,803    6,339   10,340

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      5,695)
   1,038   -1,909    1,269    3,605    8,381    5,912    7,741     -217   -2,046

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.2      0.6      7.2     79.3     78.8     91.8     86.6      8.2     13.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       1        1        2       19       23       21       25
 
 
NGPL TEXOK BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                 Code-02365G
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       92,742
COMMITMENTS
   2,476    1,042    2,865   83,307   78,118   88,648   82,025    4,094   10,717

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -4,670)
    -398       62       83   -4,103   -3,281   -4,418   -3,136     -252   -1,534

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.7      1.1      3.1     89.8     84.2     95.6     88.4      4.4     11.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       42)
       2        1        3       25       33       28       36
 
 
NGPL MID-CON BASIS SWAP - NEW YORK MERCANTILE EXCHANGE               Code-02365K
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      110,382
COMMITMENTS
   4,396      422    4,339   86,860   94,189   95,595   98,950   14,787   11,432

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -2,735)
     420     -324     -342   -2,131   -2,097   -2,053   -2,763     -682       28

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.0      0.4      3.9     78.7     85.3     86.6     89.6     13.4     10.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
       2        1        2       19       20       22       22
 
 
DEMARC BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                     Code-02365L
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       71,660
COMMITMENTS
   5,784      710    9,194   51,184   48,106   66,162   58,010    5,498   13,650

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -1,018)
  -1,089      710   -1,397    1,948   -2,059     -538   -2,746     -480    1,728

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.1      1.0     12.8     71.4     67.1     92.3     81.0      7.7     19.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       3        1        3       17       14       21       17
 
 
VENTURA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-02365M
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      102,711
COMMITMENTS
   5,978    9,656   16,500   75,912   67,966   98,390   94,122    4,321    8,589

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      7,934)
  -1,649    4,251      443   11,976    4,864   10,770    9,558   -2,836   -1,624

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.8      9.4     16.1     73.9     66.2     95.8     91.6      4.2      8.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       3        2        4       13       15       18       19
 
 
DOMINION BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365N
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       62,922
COMMITMENTS
   1,668        0    4,150   47,191   45,288   53,009   49,438    9,913   13,484

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      1,226)
    -151        0       92    1,688      925    1,629    1,017     -403      209

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.7      0.0      6.6     75.0     72.0     84.2     78.6     15.8     21.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       26)
       2        0        1       21       19       23       20
 
 
WAHA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                       Code-02365O
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      121,257
COMMITMENTS
  29,276      825    2,351   83,640  110,635  115,267  113,811    5,990    7,446

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -9,923)
    -825     -935   -1,249   -7,172   -8,597   -9,246  -10,781     -677      858

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    24.1      0.7      1.9     69.0     91.2     95.1     93.9      4.9      6.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       45)
       4        1        4       29       31       34       35
 
 
TRANSCO ZONE 3 SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-02365S
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       55,469
COMMITMENTS
       0    3,070    1,973   47,086   47,309   49,059   52,352    6,410    3,117

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:          .)
       .        .        .        .        .        .        .        .        .

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      5.5      3.6     84.9     85.3     88.4     94.4     11.6      5.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       0        2        1       16       12       17       14
 
 
ALBERTA BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035650
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      123,747
COMMITMENTS
   2,411   27,728   16,266   86,915   71,224  105,592  115,218   18,155    8,529

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      4,032)
       0    5,179     -817    5,677      180    4,860    4,542     -828     -510

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.9     22.4     13.1     70.2     57.6     85.3     93.1     14.7      6.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       38)
       1        7        5       28       26       33       34
 
 
CHICAGO BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-035651
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      118,646
COMMITMENTS
  12,423    1,261   10,823   83,806   90,540  107,052  102,624   11,594   16,022

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     17,095)
  -3,889    1,261    1,374   19,368   12,929   16,853   15,564      242    1,531

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    10.5      1.1      9.1     70.6     76.3     90.2     86.5      9.8     13.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       3        1        3       18       16       22       19
 
 
HENRY HUB BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035652
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       52,280
COMMITMENTS
       0        0        0   49,828   48,778   49,828   48,778    2,452    3,502

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -5,198)
       0   -1,440        0   -4,234   -4,316   -4,234   -5,756     -964      558

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      0.0      0.0     95.3     93.3     95.3     93.3      4.7      6.7

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       0        0        0       12       12       12       12
 
 
HOUSTON SHIP CH BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035653
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      236,634
COMMITMENTS
  13,957    4,926    5,541  202,555  211,599  222,053  222,066   14,581   14,568

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:       -233)
    -489     -220      262      283      103       56      145     -289     -378

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.9      2.1      2.3     85.6     89.4     93.8     93.8      6.2      6.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       54)
       4        4        7       41       38       48       46
 
 
NW PIPE ROCKIES BASIS SWAP - NEW YORK MERCANTILE EXCHANGE            Code-035654
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      224,324
COMMITMENTS
  20,061        0   15,173  174,413  194,272  209,647  209,445   14,677   14,879

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -1,446)
     644        0      627   -3,295   -2,835   -2,024   -2,208      578      762

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     8.9      0.0      6.8     77.8     86.6     93.5     93.4      6.5      6.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       5        0        2       36       33       41       35
 
 
PANHANDLE BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                  Code-035655
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      239,622
COMMITMENTS
  12,709   15,792    9,895  203,504  201,637  226,108  227,324   13,514   12,298

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      6,668)
   1,454    6,780   -1,475    5,356    3,819    5,335    9,124    1,333   -2,456

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.3      6.6      4.1     84.9     84.1     94.4     94.9      5.6      5.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       54)
       4        3        5       44       39       51       44
 
 
SAN JUAN BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                   Code-035656
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       51,446
COMMITMENTS
       0    4,106    2,066   41,343   33,483   43,409   39,655    8,037   11,791

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      1,393)
       0    1,370      -37    2,653      240    2,616    1,573   -1,223     -180

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0      8.0      4.0     80.4     65.1     84.4     77.1     15.6     22.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       0        1        1       18       14       19       15
 
 
SOCAL BASIS SWAP - NEW YORK MERCANTILE EXCHANGE                      Code-035657
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:      205,340
COMMITMENTS
  27,909    2,336   17,201  148,739  173,771  193,849  193,308   11,491   12,032

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      2,355)
  -3,453     -670    1,759    5,191    1,090    3,497    2,179   -1,142      176

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    13.6      1.1      8.4     72.4     84.6     94.4     94.1      5.6      5.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       46)
       5        2        6       39       38       46       44
 
 
TRANSCO ZONE 6 BASIS SWAP - NEW YORK MERCANTILE EXCHANGE             Code-035658
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:       70,430
COMMITMENTS
   4,455    6,530    1,169   56,680   51,734   62,304   59,433    8,126   10,997

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:        -20)
       0   -1,128      310    2,695    2,614    3,005    1,796   -3,025   -1,816

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     6.3      9.3      1.7     80.5     73.5     88.5     84.4     11.5     15.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       1        2        1       21       19       23       21
 
 
HENRY HUB GAS SWAP - NEW YORK MERCANTILE EXCHANGE                    Code-03565B
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    3,115,266
COMMITMENTS
 967,686  127,436  911,438  1197039  2063719  3076163  3102593   39,103   12,673

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -9,938)
  12,279    8,215  -38,210   17,761   19,980   -8,170  -10,015   -1,768       77

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    31.1      4.1     29.3     38.4     66.2     98.7     99.6      1.3      0.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      154)
      32       20       44       95       90      147      136
 
 
HENRY HUB PENULTIMATE GAS SWAP - NEW YORK MERCANTILE EXCHANGE        Code-03565C
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2,500 MMBTU'S)                                      OPEN INTEREST:    1,080,162
COMMITMENTS
 139,706  333,797  228,502  705,806  514,655  1074014  1076954    6,148    3,208

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     14,827)
   8,203   -4,357   13,194   -6,276    5,588   15,121   14,425     -294      402

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    12.9     30.9     21.2     65.3     47.6     99.4     99.7      0.6      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       83)
      18       21       34       43       41       80       77
 
 
PJM ELECTRICITY MONTHLY - NEW YORK MERCANTILE EXCHANGE               Code-064657
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       91,004
COMMITMENTS
   1,199      611    4,617   85,054   85,416   90,870   90,644      135      360

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      2,570)
     -14       50      164    2,512    2,459    2,662    2,674      -92     -104

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     1.3      0.7      5.1     93.5     93.9     99.9     99.6      0.1      0.4

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       44)
       5        3        6       32       31       38       39
 
 
ISO NEW ENGLAND LMP SWAP - NEW YORK MERCANTILE EXCHANGE              Code-06465H
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(40 MEGAWATT HOURS PER PEAK DAY)                     OPEN INTEREST:       26,832
COMMITMENTS
   4,053        0      356   22,080   26,182   26,489   26,538      343      294

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:        724)
      -0        0        8      617      707      624      714      100       10

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    15.1      0.0      1.3     82.3     97.6     98.7     98.9      1.3      1.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       3        0        2       19       20       22       22
 
 
PJM CAL MONTH OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06465M
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       25,528
COMMITMENTS
     740      618    1,092   20,904   22,378   22,736   24,088    2,792    1,440

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:        120)
    -102      138      -98      320       80      120      120        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     2.9      2.4      4.3     81.9     87.7     89.1     94.4     10.9      5.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       25)
       1        2        2       18       16       21       18
 
 
NORTH ILL OFF PK LMP SWAP - NEW YORK MERCANTILE EXCHANGE             Code-06465N
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(2.5 MEGAWATTS PER OFF PEAK HRS)                     OPEN INTEREST:       26,294
COMMITMENTS
   1,090      240      720   23,890   24,460   25,700   25,420      594      874

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:        806)
       0      240        0      806      566      806      806        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     4.1      0.9      2.7     90.9     93.0     97.7     96.7      2.3      3.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
       1        1        1       21       22       23       23
 
 
CRUDE OIL, LIGHT SWEET - NEW YORK MERCANTILE EXCHANGE                Code-067651
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:    2,943,792
COMMITMENTS
 270,309  154,165  1215622  1375683  1482503  2861614  2852290   82,178   91,503

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     69,007)
  14,583   -4,684   55,432   -6,305   10,685   63,710   61,433    5,297    7,574

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     9.2      5.2     41.3     46.7     50.4     97.2     96.9      2.8      3.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      358)
      95      147      164       88      106      290      317
 
 
WTI CRUDE OIL CALENDAR SWAP - NEW YORK MERCANTILE EXCHANGE           Code-06765A
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:      122,549
COMMITMENTS
  20,949   17,023    5,189   69,550   46,868   95,688   69,080   26,861   53,469

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      2,443)
   3,121       67     -442     -321    2,417    2,358    2,042       85      401

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.1     13.9      4.2     56.8     38.2     78.1     56.4     21.9     43.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       2        3        4       16       14       20       19
 
 
DUBAI CRUDE OIL CALENDAR SWAP - NEW YORK MERCANTILE EXCHANGE         Code-06765G
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:       20,436
COMMITMENTS
     150      815      100   20,186   19,521   20,436   20,436        0        0

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      1,300)
       0        0        0    1,300    1,300    1,300    1,300        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.7      4.0      0.5     98.8     95.5    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       37)
       1        3        1       23       26       25       30
 
 
WTI CRUDE OIL FINANCIAL - NEW YORK MERCANTILE EXCHANGE               Code-06765I
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:      188,057
COMMITMENTS
  31,496   36,448   43,073  100,969  100,443  175,538  179,964   12,519    8,093

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      2,683)
     273    2,496   -2,670    5,464    2,740    3,067    2,566     -384      117

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    16.7     19.4     22.9     53.7     53.4     93.3     95.7      6.7      4.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       51)
      12       14       21       25       25       49       48
 
 
PALLADIUM - NEW YORK MERCANTILE EXCHANGE                             Code-075651
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 100 TROY OUNCES)                       OPEN INTEREST:       19,201
COMMITMENTS
  11,209    2,721      104    5,238   15,947   16,551   18,772    2,650      429

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:       -448)
    -792      259      -19      208     -713     -603     -473      155       25

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    58.4     14.2      0.5     27.3     83.1     86.2     97.8     13.8      2.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      105)
      53       13        4       12       29       67       44
 
 
PLATINUM - NEW YORK MERCANTILE EXCHANGE                              Code-076651
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 50 TROY OUNCES)                        OPEN INTEREST:       11,916
COMMITMENTS
   7,606    1,680       30    1,574    9,346    9,210   11,056    2,706      860

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:       -102)
     325        2     -145     -338      206     -158       63       56     -165

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    63.8     14.1      0.3     13.2     78.4     77.3     92.8     22.7      7.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       66)
      28       10        2       12       20       41       31
 
 
GASOLINE BLENDSTOCK (RBOB) - NEW YORK MERCANTILE EXCHANGE            Code-111659
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 U.S. GALLONS)                   OPEN INTEREST:      280,196
COMMITMENTS
  59,558   12,148   50,009  137,885  196,894  247,452  259,051   32,744   21,144

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:      9,806)
   2,185     -957    3,925      280    5,603    6,390    8,571    3,416    1,235

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.3      4.3     17.8     49.2     70.3     88.3     92.5     11.7      7.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:      191)
      73       24       45       71       87      161      141
 
 
UP DOWN GC ULSD VS HO SPR SWAP - NEW YORK MERCANTILE EXCHANGE        Code-022A13
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 42,000 GALLONS)                        OPEN INTEREST:       13,106
COMMITMENTS
     750      772      650   11,476   11,161   12,876   12,583      230      523

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -1,421)
       0      461     -486     -891   -1,501   -1,377   -1,526      -44      105

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     5.7      5.9      5.0     87.6     85.2     98.2     96.0      1.8      4.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       1        1        2       17       23       19       25
 
 
SING JET KERO GASOIL SPR SWAP - NEW YORK MERCANTILE EXCHANGE         Code-86465C
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:        4,870
COMMITMENTS
       0    1,250       75    4,795    3,545    4,870    4,870        0        0

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:     -1,025)
       0      875     -875     -150     -975   -1,025     -975        0      -50

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
     0.0     25.7      1.5     98.5     72.8    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       0        1        1       18       11       19       12
 
 
GASOIL CRACK SPR SWAP - NEW YORK MERCANTILE EXCHANGE                 Code-86765C
OPTION AND FUTURES COMBINED POSITIONS AS OF 04/08/08          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 BARRELS)                         OPEN INTEREST:       12,418
COMMITMENTS
   2,905      450      415    6,611    6,854    9,931    7,719    2,487    4,699

CHANGES FROM 04/01/08 (CHANGE IN OPEN INTEREST:        793)
     223        0      265     -106      303      382      568      411      225

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    23.4      3.6      3.3     53.2     55.2     80.0     62.2     20.0     37.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       5        1        2       17       16       22       19
 

Updated July 29, 2008