SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY 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:       15,182
COMMITMENTS
   3,800      962      597   10,556   13,314   14,953   14,873      229      309

CHANGES FROM 06/05/07 (CHANGE IN OPEN INTEREST:        546)
     592      463       35       88      -41      715      457     -169       89

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    25.0      6.3      3.9     69.5     87.7     98.5     98.0      1.5      2.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
      12        5        5        9       11       22       20
 

Updated June 15, 2007