SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 05/26/09                         |
--------------------------------------------------------------| 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:       35,926
COMMITMENTS
  22,661      689    1,026   12,166   34,163   35,853   35,878       73       48

CHANGES FROM 05/19/09 (CHANGE IN OPEN INTEREST:        625)
     656      -61        0      -17      679      639      618      -14        7

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    63.1      1.9      2.9     33.9     95.1     99.8     99.9      0.2      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       8        3        4       17       17       26       23
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 05/26/09                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1,000 METRIC TONS CCX C02)             OPEN INTEREST:        3,336
COMMITMENTS
   2,253    2,540      721       60       59    3,034    3,320      302       16

CHANGES FROM 05/19/09 (CHANGE IN OPEN INTEREST:         61)
      17        7       71        0        5       88       83      -27      -22

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    67.5     76.1     21.6      1.8      1.8     90.9     99.5      9.1      0.5

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       24)
      19        3        3        2        1       22        6
 
 
NITROGEN FIN INS ANNUAL 2009 - CHICAGO CLIMATE FUTURES EXCHANGE      Code-00626F
FUTURES ONLY POSITIONS AS OF 05/26/09                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1 U.S. EPA CAIR ANNUAL EMM             OPEN INTEREST:       26,774
COMMITMENTS
   1,924      310      200   24,650   26,264   26,774   26,774        0        0

CHANGES FROM 05/19/09 (CHANGE IN OPEN INTEREST:         75)
      50     -300      -50       75      425       75       75        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
     7.2      1.2      0.7     92.1     98.1    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
       1        3        1       14       12       15       16
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
FUTURES ONLY POSITIONS AS OF 05/26/09                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       13,813
COMMITMENTS
   1,534    4,663       55   12,071    8,952   13,660   13,670      153      143

CHANGES FROM 05/19/09 (CHANGE IN OPEN INTEREST:        726)
       9        4      -17      599      596      591      583      135      143

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    11.1     33.8      0.4     87.4     64.8     98.9     99.0      1.1      1.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       6        3        3       14       12       21       17
 

Updated May 29, 2009