SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY 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:       16,890
COMMITMENTS
   3,222    1,781      187   13,206   14,553   16,615   16,521      275      369

CHANGES FROM 06/19/07 (CHANGE IN OPEN INTEREST:     -1,787)
    -386     -217      -59   -1,201   -1,360   -1,646   -1,636     -141     -151

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    19.1     10.5      1.1     78.2     86.2     98.4     97.8      1.6      2.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       27)
      11        6        4        9       10       22       18
 

Updated June 29, 2007