Rose Rock Midstream, L.P. Announces Filing of Its Annual Report on Form 10-K

Rose Rock Midstream, L.P. Announces Filing of Its Annual Report on Form 10-K

TULSA, Okla., Feb. 28, 2014 (GLOBE NEWSWIRE) -- Rose Rock Midstream, L.P.
(NYSE:RRMS) has filed its form 10-K for the year ended December 31, 2013, with
the Securities and Exchange Commission.

A copy of the Form 10-K is available to be viewed or downloaded on Rose Rock
Midstream's website at www.rrmidstream.com. Upon request to its Investor
Relations department, Rose Rock Midstream will send a hard copy of its
complete audited financial statements to investors, free of charge.

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.

CONTACT: Investor Relations:
         Alisa Perkins
         918-524-8081
         investor.relations@semgroupcorp.com
        
         Media:
         Kiley Roberson
         918-524-8594
         kroberson@rrmidstream.com

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