SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 05/12/09                         |
--------------------------------------------------------------| 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:       31,938
COMMITMENTS
  19,387      610    1,202   11,250   30,058   31,839   31,870       99       68

CHANGES FROM 05/05/09 (CHANGE IN OPEN INTEREST:      7,749)
   2,929      340      400    4,470    7,030    7,799    7,770      -50      -21

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    60.7      1.9      3.8     35.2     94.1     99.7     99.8      0.3      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       32)
       8        4        6       16       17       26       25
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 05/12/09                         |
--------------------------------------------------------------| 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:        3,274
COMMITMENTS
   2,266    2,543      650       60       54    2,976    3,247      298       27

CHANGES FROM 05/05/09 (CHANGE IN OPEN INTEREST:         19)
      -8       -7        5       -5       10       -8        8       27       11

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    69.2     77.7     19.9      1.8      1.6     90.9     99.2      9.1      0.8

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       23)
      18        3        3        2        1       21        6
 
 
NITROGEN FIN INS ANNUAL 2009 - CHICAGO CLIMATE FUTURES EXCHANGE      Code-00626F
FUTURES ONLY POSITIONS AS OF 05/12/09                         |
--------------------------------------------------------------| 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:       24,324
COMMITMENTS
   2,124      510        0   22,200   23,814   24,324   24,324        0        0

CHANGES FROM 05/05/09 (CHANGE IN OPEN INTEREST:      3,001)
       0      -50        0    3,001    3,051    3,001    3,001        0        0

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
     8.7      2.1      0.0     91.3     97.9    100.0    100.0      0.0      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       22)
       1        2        0       14       12       15       14
 
 
RGGI CO2 ALLOWANCE - CHICAGO CLIMATE FUTURES EXCHANGE                Code-00626U
FUTURES ONLY POSITIONS AS OF 05/12/09                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       12,393
COMMITMENTS
   1,507    4,419       93   10,674    7,775   12,274   12,287      119      106

CHANGES FROM 05/05/09 (CHANGE IN OPEN INTEREST:      1,853)
    -834    1,153     -179    2,874      875    1,861    1,849       -8        4

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    12.2     35.7      0.8     86.1     62.7     99.0     99.1      1.0      0.9

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       28)
       4        4        4       13       12       21       17
 

Updated May 15, 2009