SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 05/19/09                         |
--------------------------------------------------------------| 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:       35,301
COMMITMENTS
  22,005      750    1,026   12,183   33,484   35,214   35,260       87       41

CHANGES FROM 05/12/09 (CHANGE IN OPEN INTEREST:      3,363)
   2,618      140     -176      933    3,426    3,375    3,390      -12      -27

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    62.3      2.1      2.9     34.5     94.9     99.8     99.9      0.2      0.1

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       33)
       8        4        4       17       17       26       24
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 05/19/09                         |
--------------------------------------------------------------| 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:        3,275
COMMITMENTS
   2,236    2,533      650       60       54    2,946    3,237      329       38

CHANGES FROM 05/12/09 (CHANGE IN OPEN INTEREST:          1)
     -30      -10        0        0        0      -30      -10       31       11

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    68.3     77.3     19.8      1.8      1.6     90.0     98.8     10.0      1.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
      18        3        4        2        1       21        7
 
 
NITROGEN FIN INS ANNUAL 2009 - CHICAGO CLIMATE FUTURES EXCHANGE      Code-00626F
FUTURES ONLY POSITIONS AS OF 05/19/09                         |
--------------------------------------------------------------| 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:       26,699
COMMITMENTS
   1,874      610      250   24,575   25,839   26,699   26,699        0        0

CHANGES FROM 05/12/09 (CHANGE IN OPEN INTEREST:      2,375)
    -250      100      250    2,375    2,025    2,375    2,375        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
     7.0      2.3      0.9     92.0     96.8    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       1        2        1       14       12       15       15
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
FUTURES ONLY POSITIONS AS OF 05/19/09                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       13,087
COMMITMENTS
   1,525    4,659       72   11,472    8,356   13,069   13,087       18        0

CHANGES FROM 05/12/09 (CHANGE IN OPEN INTEREST:        694)
      18      240      -21      798      581      795      800     -101     -106

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    11.7     35.6      0.6     87.7     63.8     99.9    100.0      0.1      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       5        4        3       13       12       20       17
 

Updated May 22, 2009