Rose Rock Midstream Crude, 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, 2010April, 2010May, 2010June, 2010July, 2010August, 2010September, 2010October, 2010November, 2010December, 2010January, 2011February, 2011March, 2011April, 2011May, 2011June, 2011July, 2011August, 2011September, 2011October, 2011November, 2011December, 2011January, 2012February, 2012March, 2012April, 2012May, 2012
Rose Rock Midstream Crude, L.P.
May-2012
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, Rose Rock Midstream Crude, L.P. will pay the following prices per barrel of 42 United States gallons for marketable crude oil purchased by it and delivered by Rose Rock Midstream Crude, L.P. account into Rose Rock Midstream Crude, L.P. designated gathering facilities. Additional handling and gathering charges may be deducted where applicable.

Bulletin # Effective Area 12-094 5/1/2012 Tue 12-095 5/2/2012 Wed 12-096 5/3/2012 Thu 12-097 5/4/2012 Fri 5/5/2012 Sat 5/6/2012 Sun 12-098 5/7/2012 Mon

Oklahoma Sweet+ 99.84 98.90 96.22 92.17 92.17 92.17 91.62 Central Oklahoma Sweet+ 100.84 99.90 97.22 93.17 93.17 93.17 92.62 Panhandle Northwest OK 99.39 98.45 95.77 91.72 91.72 91.72 91.17 Oklahoma Sour 88.74 87.80 85.12 81.07 81.07 81.07 80.52 West Texas Intermediate 100.79 99.85 97.17 93.12 93.12 93.12 92.57 Kansas Sweet 93.61 92.67 89.99 85.94 85.94 85.94 85.39 Eastern Kansas 90.21 89.27 86.59 82.54 82.54 82.54 81.99 Northwest Kansas 93.46 92.52 89.84 85.79 85.79 85.79 85.24 Kansas Common 93.46 92.52 89.84 85.79 85.79 85.79 85.24 Texas Panhandle 98.89 97.95 95.27 91.22 91.22 91.22 90.67 Eastern Colorado 95.66 94.72 92.04 87.99 87.99 87.99 87.44 North Dakota Sweet 84.19 83.25 80.57 76.52 76.52 76.52 75.97 North Dakota Sour 78.19 77.25 74.57 70.52 70.52 70.52 69.97 Kansas Sour 88.71 87.77 85.09 81.04 81.04 81.04 80.49 Nebraska Intermediate 92.61 91.67 88.99 84.94 84.94 84.94 84.39 Southwest Kansas 93.21 92.27 89.59 85.54 85.54 85.54 84.99

Bulletin # Effective Area 12-099 5/8/2012 Tue 12-100 5/9/2012 Wed 12-101 5/10/2012 Thu 12-102 5/11/2012 Fri 5/12/2012 Sat 5/13/2012 Sun 12-103 5/14/2012 Mon

Oklahoma Sweet+ 90.69 90.49 90.76 89.81 89.81 89.81 88.46 Central Oklahoma Sweet+ 91.69 91.49 91.76 90.81 90.81 90.81 89.46 Panhandle Northwest OK 90.24 90.04 90.31 89.36 89.36 89.36 88.01 Oklahoma Sour 79.59 79.39 79.66 78.71 78.71 78.71 77.36 West Texas Intermediate 91.64 91.44 91.71 90.76 90.76 90.76 89.41 Kansas Sweet 84.46 84.26 84.53 83.58 83.58 83.58 82.23 Eastern Kansas 81.06 80.86 81.13 80.18 80.18 80.18 78.83 Northwest Kansas 84.31 84.11 84.38 83.43 83.43 83.43 82.08 Kansas Common 84.31 84.11 84.38 83.43 83.43 83.43 82.08 Texas Panhandle 89.74 89.54 89.81 88.86 88.86 88.86 87.51 Eastern Colorado 86.51 86.31 86.58 85.63 85.63 85.63 84.28 North Dakota Sweet 75.04 74.84 75.11 74.16 74.16 74.16 72.81 North Dakota Sour 69.04 68.84 69.11 68.16 68.16 68.16 66.81 Kansas Sour 79.56 79.36 79.63 78.68 78.68 78.68 77.33 Nebraska Intermediate 83.46 83.26 83.53 82.58 82.58 82.58 81.23 Southwest Kansas 84.06 83.86 84.13 83.18 83.18 83.18 81.83

Bulletin # Effective Area 12-104 5/15/2012 Tue 12-105 5/16/2012 Wed 12-106 5/17/2012 Thu

Oklahoma Sweet+ 87.66 86.49 86.24         Central Oklahoma Sweet+ 88.66 87.49 87.24         Panhandle Northwest OK 87.21 86.04 85.79         Oklahoma Sour 76.56 75.39 75.14         West Texas Intermediate 88.61 87.44 87.19         Kansas Sweet 81.43 80.26 80.01         Eastern Kansas 78.03 76.86 76.61         Northwest Kansas 81.28 80.11 79.86         Kansas Common 81.28 80.11 79.86         Texas Panhandle 86.71 85.54 85.29         Eastern Colorado 83.48 82.31 82.06         North Dakota Sweet 72.01 70.84 70.59         North Dakota Sour 66.01 64.84 64.59         Kansas Sour 76.53 75.36 75.11         Nebraska Intermediate 80.43 79.26 79.01         Southwest Kansas 81.03 79.86 79.61

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+           91.3712 A & C Central Oklahoma Sweet+           92.3712 A & C Panhandle Northwest OK           90.9212 A & G Oklahoma Sour           80.2712 B West Texas Intermediate           92.3212 A & C Kansas Sweet           85.1412 E Eastern Kansas           81.7412 E Northwest Kansas           84.9912 E Kansas Common           84.9912 E Texas Panhandle           90.4212 A & G Eastern Colorado           87.1912 F North Dakota Sweet           75.7212 F North Dakota Sour           69.7212 H Kansas Sour           80.2412 E Nebraska Intermediate           84.1412 E Southwest Kansas           84.7412 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 Rose Rock Midstream Crude, 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