English Español About News & Media Careers Contact Compliance Hotline NYSE: SEMG $45.49 (2.43) NYSE: RRMS $24.08 (1.36) SemGroup to Build Maurepas Pipeline Find out more on this exciting project MaurepasPipelineLLC.Com INVESTORS View our corporate profile, financial information, news releases, stock quotes and more for each of our two companies on our investor relations pages. OPERATIONS We provide gathering, transportation, processing, storage, distribution and other midstream services in the United States, Canada, Mexico and the United Kingdom. ENVIRONMENT & SAFETY In all aspects of our business and operations, we constantly strive for the highest level of performance in regard to environmental, health and safety issues. More More More WE AREN'T BRACING FOR THE FUTURE WE'RE DRIVING IT 1100 Employees Worldwide 3900 Miles of Pipeline 19 Million barrels of storage capacity Learn More Latest News SemGroup Helps Local Meals on Wheels Build New Kitchen Monday, September 21, 2015 SemCAMS to Construct Condensate Gathering and Processing Facilities at the Kaybob Amalgamated ("KA") Gas Plant Wednesday, September 16, 2015 Rose Rock Midstream to Present at the Citi MLP/Midstream Infrastructure Conference Wednesday, August 12, 2015 Call before You Dig Know What‘s Below. Before you dig, or In the event of an emergency, call 811. SemGroup Corporation 6120 South Yale Avenue Tulsa, OK 74136-4216 Phone: 918.524.8100 Supplier Relations Supplier Relations Login Crude Oil Statements Owner Relation System SemGroup®, SemCrude®, SemGas®, SemStream®, SemMaterials MexicoMR, White Cliffs Pipeline®, and Rose Rock Midstream® are registered trademarks of SemGroup Corporation. ©2015 SemGroup. All Rights Reserved. Terms & Conditions