SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
OPTION AND FUTURES COMBINED POSITIONS AS OF 06/19/07          |
--------------------------------------------------------------| 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:       20,151
COMMITMENTS
   3,446    2,073      412   15,866   17,135   19,723   19,621      428      530

CHANGES FROM 06/12/07 (CHANGE IN OPEN INTEREST:      2,952)
    -241      857     -370    3,386    2,254    2,775    2,741      177      211

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADER
    17.1     10.3      2.0     78.7     85.0     97.9     97.4      2.1      2.6

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
      12        6        4        9       11       22       20
 

Updated June 22, 2007