What departments does SemGroup Corporation have?

SemGroup Corporation has employees across 17 departments including Accounting, Finance, Civil Engineering & Construction, Human Resources, Environmental Services.

What is the largest department at SemGroup Corporation?

The largest department at SemGroup Corporation is Analytics with 4 employees.

Where are SemGroup Corporation employees located globally?

SemGroup Corporation has employees across 2 continents and 4 countries including United Kingdom Of Great Britain And Northern Ireland, Canada, United States Of America, Mexico.

How has SemGroup Corporation's team size changed over time?

SemGroup Corporation's team has decreased from approximately 333 to 68 employees based on available data.

SemGroup Corporation Employee Directory

Oil and GasOklahoma, United States51-200 Employees

SemGroup Corporation is in the oil and gas industry and moves energy across North America via a network of pipelines, processing plants, refinery-connected storage facilities, and deep-water marine terminals with import and export capabilities. It serves as a link between upstream oil and gas producers and downstream refiners and end users. The company concentrates its operations in western Canada, the Mid-Continent, and the Gulf Coast, and is headquartered in Tulsa, Oklahoma, with additional offices in Calgary, Alberta; Platteville, Colo.; and Houston, Texas. The firm employs between 51 and 200 people. In its history, SemGroup completed the acquisition of Houston Fuel Oil Terminal Company (HFOTCO) in 2017, described as one of the largest oil terminals in the United States, and in 2019 Energy Transfer LP announced a partnership with SemGroup.

SemGroup Corporation Global Highlights

North America
199

United States Of America
188
Canada
7
Mexico
4

Europe
3

United Kingdom Of Great Britain And Northern Ireland
3

SemGroup Corporation's Leadership

T. S.
Chief Accounting Officer And Vice President Controller
Mobile Phone
Email
T. O.
Vice President Corporate Planning
Mobile Phone
Email
J. B.
Co-Founder Head Of School
Mobile Phone
Email
C. T.
Director
Mobile Phone
Email
J. G.
Director
Mobile Phone
Email
J. L.
Independent Director
Mobile Phone
Email
K. K.
Independent Director
Mobile Phone
Email
R. B.
Independent Director
Mobile Phone
Email

SemGroup Corporation Employee Metrics

100%

50%

0%

2026

2025

Accounting
Analytics
Operations
Marketing
Engineering
Other
Information Technology
Administrative
Finance
Civil Engineering & Construction
Supply Chain
Arts & Design
Human Resources
Legal

Contact profiles from SemGroup Corporation

Name

Title

Contact

Location

Last Update

H. R.
HR & PR Manager
Mobile Phone
Email
United KingdomCity and County of Swansea
Oct 17, 2024
R. G.
Manager Health Safety Security And Environmental
Mobile Phone
Email
Oct 22, 2024
R. C.
Manager Regulatory And Environment
Mobile Phone
Email
Oct 17, 2024
S. E.
Sales Manager - Ergonarmor
Mobile Phone
Email
Oct 16, 2024
S. B.
Joint Venture Audit And Accounts Receivable Team Lead
Mobile Phone
Email
Oct 18, 2024
S. Z.
Project Manager
Mobile Phone
Email
Oct 17, 2024
T. G.
Construction Audit Team Manager
Mobile Phone
Email
Oct 23, 2024
T. H.
Senior Manager Business Development
Mobile Phone
Email
Jul 02, 2025
T. D.
Project Manager
Mobile Phone
Email
Oct 16, 2024
C. D.
Senior Systems Analyst
Mobile Phone
Email
CanadaAlberta
Oct 23, 2024

Frequently Asked Questions

What is SemGroup Corporation known for?

SemGroup Corporation operates in the Oil and Gas industry. Explore SemGroup Corporation's company overview page for more information.

What is SemGroup Corporation's most common email format?

SemGroup Corporation employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more SemGroup Corporation email formats with LeadIQ.

How many employees does SemGroup Corporation have currently?

SemGroup Corporation has approximately 116 employees as of August 2026. These team members are located across 2 continents, including North AmericaEurope.

Who are SemGroup Corporation's key employees and leadership?

As of August 2026, SemGroup Corporation's key employees include:

Chief Accounting Officer And Vice President Controller: T. S.
Vice President Corporate Planning: T. O.
Co-Founder Head Of School: J. B.
Director: C. T.
Director: J. G.

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SemGroup Corporation Employee Directory

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