SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 11/20/07          |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  Long  | Short  |Spreads |  Long  | Short  |  Long  | Short  |  Long  | Short
--------------------------------------------------------------------------------
(CONTRACTS OF 25 U.S. EPA SO2 EMMISSION              OPEN INTEREST:       23,575
COMMITMENTS
   8,068    3,915    2,576   12,914   17,052   23,558   23,543       17       31

CHANGES FROM 11/13/07 (CHANGE IN OPEN INTEREST:        137)
   1,000      -61      698   -1,127     -118      571      519     -434     -382

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    34.2     16.6     10.9     54.8     72.3     99.9     99.9      0.1      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       35)
      11       10       14       11       12       31       29


Updated November 26, 2007