SemCrude, L.P. Two Warren Place 6120 South Yale Avenue, Suite 700 Tulsa, Oklahoma 74136 Phone: 918.524.8100, Fax: 918.524.8290	Choose Report Date: January, 2001February, 2001March, 2001April, 2001May, 2001June, 2001July, 2001August, 2001September, 2001October, 2001November, 2001December, 2001January, 2002February, 2002March, 2002April, 2002May, 2002June, 2002July, 2002August, 2002September, 2002October, 2002November, 2002December, 2002January, 2003February, 2003March, 2003April, 2003May, 2003June, 2003July, 2003August, 2003September, 2003October, 2003November, 2003December, 2003January, 2004February, 2004March, 2004April, 2004May, 2004June, 2004July, 2004August, 2004September, 2004October, 2004November, 2004December, 2004January, 2005February, 2005March, 2005April, 2005May, 2005June, 2005July, 2005August, 2005September, 2005October, 2005November, 2005December, 2005January, 2006February, 2006March, 2006April, 2006May, 2006June, 2006July, 2006August, 2006September, 2006October, 2006November, 2006December, 2006January, 2007February, 2007March, 2007April, 2007May, 2007June, 2007July, 2007August, 2007September, 2007October, 2007November, 2007December, 2007January, 2008February, 2008March, 2008April, 2008May, 2008June, 2008July, 2008August, 2008September, 2008October, 2008November, 2008December, 2008January, 2009February, 2009March, 2009April, 2009May, 2009June, 2009July, 2009August, 2009September, 2009October, 2009November, 2009December, 2009January, 2010February, 2010March, 2010
SemCrude, L.P.
March-2010
Effective 7:00 a.m., on the dates shown below, subject to change without notice and subject to the applicable rules and regulations of all governmental authorities having jurisdiction and to the provisions of its Division Order, SemCrude, L.P. will pay the following prices per barrel of 42 United States gallons for marketable crude oil purchased by it and delivered by SemCrude, L.P. account into SemCrude, L.P. designated gathering facilities. Additional handling and gathering charges may be deducted where applicable.

Bulletin # Effective Area 10-039 3/1/2010 Mon 10-040 3/2/2010 Tue 10-041 3/3/2010 Wed 10-042 3/4/2010 Thu 10-043 3/5/2010 Fri 3/6/2010 Sat 3/7/2010 Sun

Oklahoma Sweet+ 73.64 74.62 75.81 75.15 76.44 76.44 76.44 Central Oklahoma Sweet+ 74.64 75.62 76.81 76.15 77.44 77.44 77.44 Panhandle Northwest OK 73.19 74.17 75.36 74.70 75.99 75.99 75.99 Oklahoma Sour 62.54 63.52 64.71 64.05 65.34 65.34 65.34 West Texas Intermediate 74.59 75.57 76.76 76.10 77.39 77.39 77.39 Kansas Sweet 67.41 68.39 69.58 68.92 70.21 70.21 70.21 Eastern Kansas 64.01 64.99 66.18 65.52 66.81 66.81 66.81 Northwest Kansas 67.26 68.24 69.43 68.77 70.06 70.06 70.06 Kansas Common 67.26 68.24 69.43 68.77 70.06 70.06 70.06 Texas Panhandle 72.69 73.67 74.86 74.20 75.49 75.49 75.49 Eastern Colorado 69.46 70.44 71.63 70.97 72.26 72.26 72.26 North Dakota Sweet 57.99 58.97 60.16 59.50 60.79 60.79 60.79 North Dakota Sour 51.99 52.97 54.16 53.50 54.79 54.79 54.79 Kansas Sour 62.51 63.49 64.68 64.02 65.31 65.31 65.31 Nebraska Intermediate 66.41 67.39 68.58 67.92 69.21 69.21 69.21 Southwest Kansas 67.01 67.99 69.18 68.52 69.81 69.81 69.81

Bulletin # Effective Area 10-044 3/8/2010 Mon 10-045 3/9/2010 Tue 10-046 3/10/2010 Wed 3/11/2010 Thu 10-047 3/12/2010 Fri 3/13/2010 Sat 3/14/2010 Sun

Oklahoma Sweet+ 76.81 76.43 77.03 77.03 76.16 76.16 76.16 Central Oklahoma Sweet+ 77.81 77.43 78.03 78.03 77.16 77.16 77.16 Panhandle Northwest OK 76.36 75.98 76.58 76.58 75.71 75.71 75.71 Oklahoma Sour 65.71 65.33 65.93 65.93 65.06 65.06 65.06 West Texas Intermediate 77.76 77.38 77.98 77.98 77.11 77.11 77.11 Kansas Sweet 70.58 70.20 70.80 70.80 69.93 69.93 69.93 Eastern Kansas 67.18 66.80 67.40 67.40 66.53 66.53 66.53 Northwest Kansas 70.43 70.05 70.65 70.65 69.78 69.78 69.78 Kansas Common 70.43 70.05 70.65 70.65 69.78 69.78 69.78 Texas Panhandle 75.86 75.48 76.08 76.08 75.21 75.21 75.21 Eastern Colorado 72.63 72.25 72.85 72.85 71.98 71.98 71.98 North Dakota Sweet 61.16 60.78 61.38 61.38 60.51 60.51 60.51 North Dakota Sour 55.16 54.78 55.38 55.38 54.51 54.51 54.51 Kansas Sour 65.68 65.30 65.90 65.90 65.03 65.03 65.03 Nebraska Intermediate 69.58 69.20 69.80 69.80 68.93 68.93 68.93 Southwest Kansas 70.18 69.80 70.40 70.40 69.53 69.53 69.53

Bulletin # Effective Area 10-048 3/15/2010 Mon 10-049 3/16/2010 Tue 10-050 3/17/2010 Wed 10-051 3/18/2010 Thu 10-052 3/19/2010 Fri

Oklahoma Sweet+ 74.72 76.62 77.85 77.12 75.57     Central Oklahoma Sweet+ 75.72 77.62 78.85 78.12 76.57     Panhandle Northwest OK 74.27 76.17 77.40 76.67 75.12     Oklahoma Sour 63.62 65.52 66.75 66.02 64.47     West Texas Intermediate 75.67 77.57 78.80 78.07 76.52     Kansas Sweet 68.49 70.39 71.62 70.89 69.34     Eastern Kansas 65.09 66.99 68.22 67.49 65.94     Northwest Kansas 68.34 70.24 71.47 70.74 69.19     Kansas Common 68.34 70.24 71.47 70.74 69.19     Texas Panhandle 73.77 75.67 76.90 76.17 74.62     Eastern Colorado 70.54 72.44 73.67 72.94 71.39     North Dakota Sweet 59.07 60.97 62.20 61.47 59.92     North Dakota Sour 53.07 54.97 56.20 55.47 53.92     Kansas Sour 63.59 65.49 66.72 65.99 64.44     Nebraska Intermediate 67.49 69.39 70.62 69.89 68.34     Southwest Kansas 68.09 69.99 71.22 70.49 68.94

Bulletin # Effective Area

Oklahoma Sweet+               Central Oklahoma Sweet+               Panhandle Northwest OK               Oklahoma Sour               West Texas Intermediate               Kansas Sweet               Eastern Kansas               Northwest Kansas               Kansas Common               Texas Panhandle               Eastern Colorado               North Dakota Sweet               North Dakota Sour               Kansas Sour               Nebraska Intermediate               Southwest Kansas

Bulletin # Effective Area AVG EDQ Gravity Adjust

Oklahoma Sweet+           76.1158 A & C Central Oklahoma Sweet+           77.1158 A & C Panhandle Northwest OK           75.6658 A & G Oklahoma Sour           65.0158 B West Texas Intermediate           77.0658 A & C Kansas Sweet           69.8858 E Eastern Kansas           66.4858 E Northwest Kansas           69.7358 E Kansas Common           69.7358 E Texas Panhandle           75.1658 A & G Eastern Colorado           71.9358 F North Dakota Sweet           60.4658 F North Dakota Sour           54.4658 H Kansas Sour           64.9858 E Nebraska Intermediate           68.8858 E Southwest Kansas           69.4858 E

+Areas Described:
+ Oklahoma Sweet	(Excludes Panhandle-Northwest and Central Oklahoma)
+ Central Oklahoma Sweet	(Caddo, Canadian, Carter, Cleveland, Comanche, Creek, Garvin, Grady, Hughes, Lincoln, Logan, McClain, Murray, Muskogee, Noble, Okfuskee, Oklahoma, Okmulgee, Osage, Pawnee, Payne, Pontotoc, Pottawatomie, Seminole, Stephens, Tulsa and Wagoner Counties)

GRAVITY ADJUSTMENT
A.	Deduct $0.005 per 1/10 (one-tenth) degree API below 30.0 degrees to 25.0 degrees then $0.010 per 1/10 (one-tenth) degree below 25.0 degrees API
B.	Deduct $.10 per whole degree API for each whole degree below 40.9 degrees to 30.0 degrees API. Below 30.0 degrees API deduct $0.025 per 1/10 (one-tenth) degree API.
C.	Deduct $0.01 for each 1/10 (one-tenth) degree in excess of 60.0 degrees API.
D.	Deduct $.01 per 1/10 (one-tenth) degree API below 35.0 degrees to 30.0 degrees then deduct $0.02 per 1/10 (one-tenth) degree below 30.0 degrees API.
E.	Deduct $0.015 per 1/10 (one-tenth) degree API below 40.0 degrees API.
F.	Deduct $.02 per whole degree API for each degree below 40.9 degrees to 19.0 degrees API. Deduct $0.015 per each 1/10 (one-tenth) degree API above 44.9 degrees API.
G.	Deduct $0.01 per each 1/10 (one-tenth) degree in excess of 45.0 degrees API.
H.	Deduct $.10 per whole degree API for each whole degree below 40.9 degrees to 30.0 degrees API. Below 30.0 degrees API deduct $0.15 per 1/10 (one-tenth) degree API.
All prices are based upon the use of 100% tank tables with customary adjustments for temperature and full deductions for basic sediment and water.
	Contact SemCrude, L.P. Attn: Paul Crow, 11501 South I-44 Service Road, Oklahoma City, OK 73173 (405) 692-5101 for Crude Oil Price Bulletin address changes.

To check the current bulletin number and prices call:	1-800-SELL-OIL
	1-800-735-5645

SemGroup Marketing Personnel
Lease Acquisition Representative	Area	Office	Cell
Roger Owen	OK	405.692.5102	405.550.5173
Paul Crow	OK	405.692.5101	405.620.0863
Pete Schwiering	OK/KS/TX/ND	405.692.5104	405.760.1134