Rose Rock Midstream Announces New Board Member

TULSA, Okla., Dec. 6, 2012 (GLOBE NEWSWIRE) -- Rose Rock Midstream, L.P. (NYSE:RRMS) announced today that Robert E. Dunn has been elected as the newest member of the Rose Rock Midstream Board of Directors, effective immediately.

"We are extremely pleased to welcome Robert to our board," said Norm Szydlowski, CEO of Rose Rock Midstream. "With nearly 40 years of experience in the energy industry, he will provide a knowledgeable and valuable perspective on the company's business and growth plans."

Mr. Dunn currently serves as president and chief executive officer of Prism Midstream LLC. In 2000, he founded Prism Gas Systems. That company was acquired by Martin Midstream Partners in 2005, where he continued as senior vice president until 2012. From 1982 to 1999, Mr. Dunn was employed by Union Pacific Resources, an independent oil and gas exploration and production company, last serving as vice president of gathering and processing. He began his career in 1975, working as an engineer for Texas based Brown & Root, Inc. Mr. Dunn has a master's degree in business administration from Harvard Business School and a bachelor of science degree in civil engineering from the University of Tennessee.

About Rose Rock Midstream

Rose Rock Midstream, L.P. (NYSE:RRMS) is a growth-oriented Delaware limited partnership formed in 2011 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 different states with the majority of its assets strategically located in or connected to the Cushing, Oklahoma crude oil marketing hub.

The Rose Rock Midstream logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=14817

CONTACT: Investor Relations:
         Alisa Perkins, 918-524-8081
         investor.relations@semgroupcorp.com
         
         Media:
         Liz Barclay, 918-524-8158
         lbarclay@semgroupcorp.com
Stock Market XML and JSON Data API provided by FinancialContent Services, Inc.
Nasdaq quotes delayed at least 15 minutes, all others at least 20 minutes.
Markets are closed on certain holidays. Stock Market Holiday List
By accessing this page, you agree to the following
Privacy Policy and Terms and Conditions.
Press Release Service provided by PRConnect.
Stock quotes supplied by Six Financial
Postage Rates Bots go here