SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 11/20/07                         |
--------------------------------------------------------------| 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:       19,624
COMMITMENTS
   8,678    3,108    1,026    9,903   15,459   19,607   19,593       17       31

CHANGES FROM 11/13/07 (CHANGE IN OPEN INTEREST:        -56)
     810      140      341     -774     -155      377      326     -433     -382

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    44.2     15.8      5.2     50.5     78.8     99.9     99.8      0.1      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       34)
      12        9       10        8       10       26       25
 

Updated November 26, 2007