```
 
 
SULFUR FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006261
FUTURES ONLY POSITIONS AS OF 12/14/10                         |
--------------------------------------------------------------| 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:       14,015
COMMITMENTS
  10,432      100        0    3,557   13,890   13,989   13,990       26       25

CHANGES FROM 12/07/10 (CHANGE IN OPEN INTEREST:        -92)
     -67       62      -12      -29     -148     -108      -98       16        6

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    74.4      0.7      0.0     25.4     99.1     99.8     99.8      0.2      0.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       21)
       4        1        0        4       14        8       15
 
 
SULFUR FINANCIAL INSTR 2009 - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006265
FUTURES ONLY POSITIONS AS OF 12/14/10                         |
--------------------------------------------------------------| 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:       24,356
COMMITMENTS
  18,416       39        0    5,868   24,317   24,284   24,356       72        0

CHANGES FROM 12/07/10 (CHANGE IN OPEN INTEREST:        -90)
    -156        0      -56       94      -17     -118      -73       28      -17

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    75.6      0.2      0.0     24.1     99.8     99.7    100.0      0.3      0.0

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       30)
       9        1        0        9       13       18       14
 
 
CARBON FINANCIAL INSTRUMENT - CHICAGO CLIMATE FUTURES EXCHANGE       Code-006268
FUTURES ONLY POSITIONS AS OF 12/14/10                         |
--------------------------------------------------------------| 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:        2,331
COMMITMENTS
   2,165      305        0        0    1,975    2,165    2,280      166       51

CHANGES FROM 12/07/10 (CHANGE IN OPEN INTEREST:          0)
     -50      -50        0        0        0      -50      -50       50       50

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
    92.9     13.1      0.0      0.0     84.7     92.9     97.8      7.1      2.2

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
      16        2        0        0        2       16        4
 
 
RGGI CO2 ALLOWANCE 2009 - CHICAGO CLIMATE FUTURES EXCHANGE           Code-00626U
FUTURES ONLY POSITIONS AS OF 12/14/10                         |
--------------------------------------------------------------| NONREPORTABLE
      NON-COMMERCIAL      |   COMMERCIAL    |      TOTAL      |   POSITIONS
--------------------------|-----------------|-----------------|-----------------
  LONG  | SHORT  |SPREADS |  LONG  | SHORT  |  LONG  | SHORT  |  LONG  | SHORT
--------------------------------------------------------------------------------
(CONTRACTS OF 1000 RGGI CO2 ALLOWANCES)              OPEN INTEREST:       11,893
COMMITMENTS
     498       81        5   11,351   11,772   11,854   11,858       39       35

CHANGES FROM 12/07/10 (CHANGE IN OPEN INTEREST:        -45)
     -87       12      -12       31      -59      -68      -59       23       14

PERCENT OF OPEN INTEREST FOR EACH CATEGORY OF TRADERS
     4.2      0.7      0.0     95.4     99.0     99.7     99.7      0.3      0.3

NUMBER OF TRADERS IN EACH CATEGORY (TOTAL TRADERS:       20)
       4        2        1        7        7       11       10
```

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Updated December 17, 2010