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Rose Rock Midstream (RRMS) IPO Trades Higher Dec 9, 2011 09:48AM
Rose Rock Midstream Announces Pricing of Initial Public Offering Dec 8, 2011 05:56PM
Rose Rock Midstream (RRMS) Sees IPO Price of $19 - $21/Unit Dec 1, 2011 01:34PM
SemGroup Reiterates Rejection of Plains All American Pipeline Unsolicited Proposal Nov 17, 2011 08:01AM
SemGroup Adopts Shareholder Rights Plan; Amends By-Laws Oct 28, 2011 04:53PM


Oct 24, 2011 03:37PM SemGroup Rejects Unsolicited Acquisition Proposal by Plains All American Pipeline
Aug 12, 2011 12:54PM SemGroup's (SEMG) Rose Rock Midstream (RRMS) Files $181.13M IPO