TULSA, Okla., April 17, 2013 (GLOBE NEWSWIRE) -- Rose Rock Midstream, L.P. (NYSE:RRMS) filed on March 1, 2013, its Form 10-K for the year ended December 31, 2012, 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. Rose Rock Midstream provides crude oil gathering, transportation, storage and marketing services. Headquartered in Tulsa, OK, Rose Rock Midstream has operations in six states with the majority of its assets strategically located in or connected to the Cushing, Oklahoma crude oil marketing hub.
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