- Rose Rock Midstream to acquire SemGroup's remaining crude oil assets in US Energy Business Review - Latest Stories
- Rose Rock to buy Chesapeake oil transportation assets Reuters - Markets - Mergers & Acquisitions
- SemGroup Unit To Build Natural Gas Pipeline In Canada Law 360 Energy
- SemGroup CEO retiring when successor found The Tulsa World - Tulsa, OK
- SemGroup plans private offering Journal Record - Oklahoma City, OK
- SemGroup Picks Up What Chesapeake Is Putting Down Fool.com: The Motley Fool
- SemGroup Corp. to pay first dividend in May The Tulsa World - Tulsa, OK
- SemGroup buying Chesapeake assets in Mississippi Lime area for $300 million The Tulsa World - Tulsa, OK
- Chesapeake Sells $300M In Midstream Assets To SemGroup Law 360 Corporate Finance
- Rose Rock Midstream buys stake in pipeline Journal Record - Oklahoma City, OK
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