Corrections for May 2, 2011

The following corrections were made on May 2, 2011

Symbol Assessment Date Original Assessment New Assessment Description
AAEUQ00c 28-Apr-11 120.9 120.91 OPEC Basket Daily
AAEUQ01c 01-Jan-11 105.09 105.28 OPEC Basket YTD MovAvg
AAEUQ03c 01-Apr-11 117.97 118.09 OPEC Basket MTD MovAvg
AAEUQ04c 29-Apr-11 119.65 119.79 OPEC Basket WTD MovAvg
AAFZV00c 01-Apr-11 153.34 153.5 No4 0.3% NY MAvg
AAGAD00c 01-Apr-11 147.76 147.93 No6 0.3% NY MAvg
AAGWX00h 08-Apr-11 10.55 10.56 ANS Long Bch Differential
HYLGR00c 29-Apr-11 279000 27900 HydroFcst Lw Granit Res Apr-Jul
OTHS013u 02-May-11 33 34.25 ERCOT S OPk Fwd 13-Sn
OTHS014u 02-May-11 33 35.75 ERCOT S OPk Fwd 14-Sn
PCAAD00h 08-Apr-11 124.02 124.03 ANS LONG Beach 1Mth
PCAEJ00h 02-May-11 123.82 124.45 Par Cond Crude 1Mo DA USD/Bbl
PCAEJ00l 02-May-11 123.49 124.11 Par Cond Crude 1Mo DA USD/Bbl
PCAEZ00h 02-May-11 739.25 743 Par Condensate 1st Mo C$/CM
PCAEZ00l 02-May-11 737.25 741 Par Condensate 1st Mo C$/CM
PCAII00h 02-May-11 695.5 699.25 Lt/Sr Cromer Canada 1stMo C$/CM
PCAII00l 02-May-11 693.5 697.25 Lt/Sr Cromer Canada 1stMo C$/CM
PCAIK00h 02-May-11 116.49 117.12 Lt/Sr Cromer Canada 1stMo
PCAIK00l 02-May-11 116.16 116.79 Lt/Sr Cromer Canada 1stMo
PCAIM00h 02-May-11 706 711 Koch Sr Edmonton Can C$/CM
PCAIM00l 02-May-11 704 709 Koch Sr Edmonton Can C$/CM
PCAIO00h 02-May-11 118.25 119.09 Sour Edmonton 1Mo US$/Bbl
PCAIO00l 02-May-11 117.92 118.75 Sour Edmonton 1Mo US$/Bbl
PCAIQ00h 02-May-11 656 660.67 Midale Cromer Canada 1stMo C$/CM
PCAIQ00l 02-May-11 654 658.67 Midale Cromer Canada 1stMo C$/CM
PCAIS00h 02-May-11 109.88 110.66 Midale Cromer Canada 1st Mo
PCAIS00l 02-May-11 109.54 110.32 Midale Cromer Canada 1st Mo
PSUS146u 02-May-11 108.25 108.75 ND Lt Sour ND Flint Hills
PSUS147u 02-May-11 107 107.5 ND Lt Swt ND Flint Hills
PSUS149u 02-May-11 104.25 104.75 ND Med Sour ND Flint Hills
PSUS150u 02-May-11 88.5 89 ND Sour ND Flint Hills
PSUS157u 02-May-11 98 98.5 ND N Area ND Flint Hills
PSUS158u 02-May-11 106 106.5 ND S Area ND Flint Hills
PSUS254u 02-May-11 89 89.5 WY Asphaltic Sour WY Flint Hills
PSUS257u 02-May-11 94.55 95.05 WY Hvy Sr WY Flint Hills
PSUS259u 02-May-11 95.65 96.15 WY Med Sour WY Flint Hills
PSUS261u 02-May-11 90 90.5 WY MT Gen Sour WY Flint Hills
PSUS264u 02-May-11 107.5 108 WY Swt WY Flint Hills
XNLC009h 28-Apr-11 11391 11401 NYMEX Globex Lt Swt Crude 09-Mo
XNLC024h 28-Apr-11 10875 11001 NYMEX Globex Lt Swt Crude 24-Mo
XNLC031h 28-Apr-11 10859 10880 NYMEX Globex Lt Swt Crude 31-Mo
XNLC043h 28-Apr-11 10681 10695 NYMEX Globex Lt Swt Crude 43-Mo
XNLC091h 28-Apr-11 10630 10691 NYMEX Globex Lt Swt Crude 91-Mo
XNLCG12h 28-Apr-11 11391 11401 NYMEX Globex Lt Swt Crude Feb 20
XNLCK13h 28-Apr-11 10875 11001 NYMEX Globex Lt Swt Crude May 20
XNLCZ13h 28-Apr-11 10859 10880 NYMEX Globex Lt Swt Crude Dec 20
XNLCZ14h 28-Apr-11 10681 10695 NYMEX Globex Lt Swt Crude Dec 20
XNLCZ18h 28-Apr-11 10630 10691 NYMEX Globex Lt Swt Crude Dec 20
XNNE002l 28-Apr-11 4474 4471 NYMEX HH Natgas 02-Mo Elect
XNNE012l 28-Apr-11 4875 4869 NYMEX HH Natgas 12-Mo Elect
XNNE014l 28-Apr-11 4979 4945 NYMEX HH Natgas 14-Mo Elect
XNNE015l 28-Apr-11 5009 4972 NYMEX HH Natgas 15-Mo Elect
XNNE016l 28-Apr-11 4987 4982 NYMEX HH Natgas 16-Mo Elect
XNNE018l 28-Apr-11 5195 5183 NYMEX HH Natgas 18-Mo Elect
XNNE019l 28-Apr-11 5440 5418 NYMEX HH Natgas 19-Mo Elect
XNNEK12l 28-Apr-11 4875 4869 NYMEX HH Natgas May 2012 Elect
XNNEN11l 28-Apr-11 4474 4471 NYMEX HH Natgas Jul 2011 Elect
XNNEN12l 28-Apr-11 4979 4945 NYMEX HH Natgas Jul 2012 Elect
XNNEQ12l 28-Apr-11 5009 4972 NYMEX HH Natgas Aug 2012 Elect
XNNEU12l 28-Apr-11 4987 4982 NYMEX HH Natgas Sep 2012 Elect
XNNEX12l 28-Apr-11 5195 5183 NYMEX HH Natgas Nov 2012 Elect
XNNEZ12l 28-Apr-11 5440 5418 NYMEX HH Natgas Dec 2012 Elect
XNOH005h 28-Apr-11 33284 33289 NYMEX Globex Heating Oil 05-Mo E
XNOH008h 28-Apr-11 33725 33726 NYMEX Globex Heating Oil 08-Mo E
XNOH014h 28-Apr-11 33006 33029 NYMEX Globex Heating Oil 14-Mo E
XNOHM12h 28-Apr-11 33006 33029 NYMEX Globex Heating Oil Jun 201
XNOHU11h 28-Apr-11 33284 33289 NYMEX Globex Heating Oil Sep 201
XNOHZ11h 28-Apr-11 33725 33726 NYMEX Globex Heating Oil Dec 201