SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 11/27/07                         |
--------------------------------------------------------------| 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:       20,683
COMMITMENTS
   8,847    3,171    1,870    9,952   15,616   20,669   20,657       14       26

CHANGES FROM 11/20/07 (CHANGE IN OPEN INTEREST:      1,059)
     169       63      844       49      157    1,062    1,064       -3       -5

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    42.8     15.3      9.0     48.1     75.5     99.9     99.9      0.1      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
      12        9        9        8       10       25       25
 

Updated November 30, 2007