Rose Rock Midstream, L.P. Increases Distributions on Limited Partner Units

Rose Rock Midstream, L.P. Increases Distributions on Limited Partner Units

TULSA, Okla., Oct. 24, 2013 (GLOBE NEWSWIRE) -- Rose Rock Midstream^®, L.P.
(NYSE:RRMS) announced today that the Board of Directors of its general partner
has declared a cash distribution for the third quarter of 2013 of $0.45 per
unit, or $1.80 per unit on an annualized basis. This distribution represents
an increase of approximately 2.3% over the prior quarter's distribution of
$0.44 per unit, and an approximately 15% increase over the third quarter of
2012 quarterly distribution of $0.3925 per unit.

The distribution will be paid on November 14, 2013 to all unitholders of
record on November 5, 2013.

About Rose Rock Midstream

Rose Rock Midstream^®, L.P. (NYSE:RRMS) is a growth-oriented Delaware limited
partnership formed by SemGroup^® Corporation (NYSE:SEMG) to own, operate,
develop and acquire a diversified portfolio of midstream energy assets.
Headquartered in Tulsa, OK, Rose Rock Midstream provides crude oil gathering,
transportation, storage and marketing services with the majority of its assets
strategically located in or connected to the Cushing, Oklahoma crude oil
marketing hub.

This release is a qualified notice under Treasury Regulation Section
1.1446-4(b). Brokers and nominees should treat 100% of Rose Rock Midstream,
L.P.'s distributions to foreign investors as being attributable to income that
is effectively connected with a United States trade or business.Therefore,
distributions to foreign investors are subject to federal income tax
withholding at the highest applicable effective tax rate.

CONTACT: Investor Relations:
         Alisa Perkins
         Kiley Roberson

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