SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/12/07          |
--------------------------------------------------------------| 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:       17,199
COMMITMENTS
   3,686    1,216      782   12,480   14,881   16,948   16,879      251      319

CHANGES FROM 06/05/07 (CHANGE IN OPEN INTEREST:       -768)
     511      -55       74   -1,168     -862     -583     -843     -185       74

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    21.4      7.1      4.5     72.6     86.5     98.5     98.1      1.5      1.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
      12        5        6       11       11       24       21
 

Updated June 15, 2007