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Illinois summer internships
Intern/Co-op - Refining Mechanical Engineer (Summer 2027)
Marathon Petroleum - Mandan, ND, United States
Intern/Co-op - Refining Mechanical Engineer (Spring 2027)
Marathon Petroleum - Kentucky, United States
Undergraduate Marketing Intern
Ecolab - Naperville, IL, United States
Capital Markets Summer 2027 Internship - New York
JLL - New York City, NY, United States
Intern/Co-Op - Supply Chain (Summer 2027)
Marathon Petroleum - Wilmington, CA, United States
Returning Intern Planner - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB - Milwaukee, WI, United States
Intern/Co-op - Refining Electrical Engineering (Summer 2027)
Marathon Petroleum - Louisiana, United States
Intern/Co-op - Refining Electrical Engineering (Summer 2027)
Marathon Petroleum - Findlay, OH, United States
Intern/Co-op - Accounting (Summer 2027)
Marathon Petroleum - Findlay, OH, United States
Returning Project Controls Intern - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB - Indianapolis, IN, United States
Returning Intern Engineer - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB - Detroit, MI, United States
Intern/Co-op - Refining Electrical Engineering (Summer 2027)
Marathon Petroleum - Kentucky, United States
Intern/Co-op - Refining Construction Management (Summer 2027)
Marathon Petroleum - Minnesota, United States
Intern/Co-op - Refining Construction Management (Summer 2027)
Marathon Petroleum - Detroit, MI, United States
Crisis Management Data & Analytics Intern
Ameren - Peoria, IL, United States
Intern/Co-op - Refining Chemical Engineering Fall 2026
Marathon Petroleum - Martinez, CA, United States
Intern/Co-op - Refining Electrical Engineering (Fall 2027)
Marathon Petroleum - Anacortes, WA, United States
2027 Summer Corporate Intern - Engineering
Caterpillar - Denison, TX, United States
Returning Intern Planner - Summer 2027 - Great Lakes Division (For Current/Former HNTB Interns Only)
HNTB - Grand Rapids, MI, United States
Intern/Co-op - Refining Mechanical Engineer (Summer 2027)
Marathon Petroleum - Salt Lake City, UT, United States
