Corrections for May 21, 2009

The following corrections were made on May 21, 2009

Symbol Assessment Date Original Assessment New Assessment Description
AAEAW03c 01-Apr-08 3.76 1.56 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Apr-09 .14 -.42 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Aug-07 4.68 .655 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Aug-08 5.5 .35 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Dec-07 4.3 .11 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Dec-08 2.68 -.67 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Feb-08 2.52 .75 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Feb-09 .6 -2.1 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Jan-08 3.45 .67 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Jan-09 1.33 -2.38 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Jul-07 3.85 -1.76 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Jul-08 4.35 -1.07 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Jun-07 8.73 -2.71 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Jun-08 2.59 -.01 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Mar-08 6.51 2.08 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Mar-09 .25 .57 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-May-08 2.27 .59 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Nov-07 4.91 2.11 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Nov-08 1.7 1.21 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Oct-07 5.06 2.43 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Oct-08 3.37 1.42 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Sep-07 5.08 1.46 WTI-Brent 1st Mo Swaps MAvg
AAEAW03c 01-Sep-08 3.71 1.32 WTI-Brent 1st Mo Swaps MAvg
DM075KSu 20-May-09 207 203.04 DTN Unl Mid RFG Chicago IL COP B
DP075KSu 20-May-09 217.64 213.68 DTN Unl Prem RFG Chicago IL COP
DR075KSu 20-May-09 200.81 196.85 DTN Unl Reg RFG Chicago IL COP B
PCAAS00h 21-May-09 58.97 57.99 Dated Brent
PCAAS00l 21-May-09 58.95 57.98 Dated Brent
PCADI00h 21-May-09 60.43 59.37 Ekofisk 1st Mth
PCADI00l 21-May-09 60.39 59.34 Ekofisk 1st Mth
PCAEE00h 21-May-09 60.18 59.12 Statfjord 1st Mth Hi
PCAEE00l 21-May-09 60.14 59.09 Statfjord 1st Mth Hi
PCAEU00h 21-May-09 60.28 59.22 Oseberg 1st Mth
PCAEU00l 21-May-09 60.24 59.19 Oseberg 1st Mth