SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/26/07          |
--------------------------------------------------------------| 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:       18,235
COMMITMENTS
   3,195    1,903      218   14,536   15,730   17,949   17,851      285      383

CHANGES FROM 06/19/07 (CHANGE IN OPEN INTEREST:     -1,916)
    -251     -170     -194   -1,329   -1,405   -1,774   -1,769     -142     -147

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.5     10.4      1.2     79.7     86.3     98.4     97.9      1.6      2.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
      10        7        5       10       11       23       20
 

Updated June 29, 2007