SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY 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:       18,677
COMMITMENTS
   3,608    1,998      246   14,407   15,913   18,261   18,157      416      520

CHANGES FROM 06/12/07 (CHANGE IN OPEN INTEREST:      3,495)
    -192    1,036     -351    3,851    2,599    3,308    3,284      187      211

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    19.3     10.7      1.3     77.1     85.2     97.8     97.2      2.2      2.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       29)
      12        6        3        9       10       22       18
 

Updated June 22, 2007