SemGroup moves energy across North America through a network of pipelines, processing plants, refinery-connected storage facilities and deep-water marine terminals with import and export capabilities. SemGroup serves as a versatile connection between upstream oil and gas producers and downstream refiners and end users. Key areas of operation and growth include western Canada, the Mid-Continent and the Gulf Coast. SemGroup is committed to safe, environmentally sound operations. Headquartered in Tulsa, Okla., the company has additional offices in Calgary, Alberta; Denver, Colo.; and Houston, Texas. 



Our Key Operations Include:

  • Transporting, storing, terminaling and trucking crude oil
  • Gathering, compressing, treating, processing and selling natural gas
  • Storing and terminaling refined petroleum products
  • Operating a world-class marine terminal strategically located on the Houston Ship Channel

Advanced Footprint

Our assets are strategically located in Canada, the Mid-Continent and the Gulf Coast and are interconnected with key markets and logistics centers. Through our subsidiaries, our expanding footprint reaches across multiple shale and natural resource plays including: the Bakken Shale, DJ/Niobrara, Eagle Ford, Mississippi Lime Play and Montney/Duvernay. Our Houston Fuel Oil Terminal Company (HFOTCO) serves many refineries with crude oil terminal capabilities and is one of the largest providers of residual fuel oil storage on the Gulf Coast.

Backed By Experience

SemGroup is based in Tulsa, Okla. and employs about 1,000 people across our operations.  Our employees represent some of the best in the business, backed by decades of industry experience. SemGroup CEO Carlin Conner joined the company in 2014, adding more than 24 years of energy experience to our seasoned leadership team.