Tesoro Corporation is an oil refining and chemical company based in San Antonio, Texas that operates refineries, terminals, and pipelines across the western United States. The document outlines Tesoro's guiding principles of safety, integrity, developing exceptional people, shared purpose, collaboration, and execution. It describes Tesoro's commitment to a high-performing culture and providing opportunities for growth through internship and rotational development programs in areas like refining, logistics, and information technology. Former interns praise the hands-on work, mentoring, and broad exposure provided by Tesoro's programs.

1. Tesoro Corporation
19100 Ridgewood Parkway
San Antonio, Texas 78259
www.tsocorp.com/careers
linkedin.com/company/tesoro
facebook.com/TesoroCorporation
twitter.com/TesoroCorp
bit.ly/tsocareers
Guiding
Principles
We conduct business at Tesoro based on a strong culture that is
grounded by our Guiding Principles. Our High-Performing Culture
drives the characteristics and behaviors we expect from our
employees, and is integral to being a successful company, a trusted,
and valued business partner and a good corporate citizen.
u Core Values:
• Safety and Environment
• Respect
• Integrity
u Recruiting, retaining, and
developing Exceptional People
u Operating with a Shared Purpose
u Fostering Powerful Collaboration
u Focusing on Superior Execution
HIGH-PERFORMING CULTURE
H
P
Discover
Your Future.
Headquarters
Refinery
Natural Gas
Processing Plant
Retail
Marine Terminal
Crude Oil Refined
Product Terminal
Pipeline
Rail Facility
Tesoro’s success has been greatly
bolstered by our leadership’s ability
to seize opportunity in the market in
an agile and decisive way. This affords
our employees many opportunities for
cross-functional growth and exposure
throughout the Company. As we continue
to build a High-Performing Culture,
we encourage mobility amongst our
employees to develop exceptional talent
with broad skillsets.
Learn more about Tesoro’s
commitment to social responsibility
www.tsocorp.com/responsibility
Take Initiative.
Make An Impact.

2. Internship
Program
“Since day one, Tesoro provided challenging
work and a collaborative environment which
enabled me to think outside the box and
come up with new ideas to further improve
our work.”
Robert O. | RDP, Accounting
University of Texas at San Antonio
Former Intern
Rotational
Development
Program
Tesoro hires exceptional individuals whose personal values
align with our High-Performing Culture and the Guiding Principles
that define how we do business.
During the internship,
you will experience:
u Professional Development
u Mentorship
u Networking
u Leadership Engagement
u Project Presentation
u Community Outreach
The internship program provides a talent pipeline for the
Rotational Development Program and other early career opportunities.
“As an intern I was given quality
projects that were actual engineering
work. Because the projects were robust,
returning to Tesoro as a full-time hire
was a smooth transition.”
Elliott J. | RDP, Refining
Texas AM University
Former Intern
Tesoro’s Rotational Development Program (RDP) offers
full-time, hands-on experience that will provide the
opportunity for growth, learning, and development.
Tesoro also recruits other disciplines including but not limited to: Corporate Affairs,
Environmental Health Safety, and Supply Chain. Review openings qualifications,
and apply @ www.tsocorp.com/careers. EOE: Race / Sex / Veteran / Disability.
“In just four months I’ve been able to
work on a number of field projects
including: integrity management, project
management, and risk ranking providing
me a broad overview of the company.”
Lauren N. | RDP, Logistics
University of California, Los Angeles
Former Intern
At A
Glance.
Refining
Duration: 1 Year
Locations: Company Wide
Majors:
Chemical Engineering
Mechanical Engineering
Finance
Duration: 3 Years
Locations: TX, WA, CA
Majors:
Economics
Finance
Logistics
Duration: 2 Years
Locations: Company Wide
Majors:
Electrical Engineering
Mechanical Engineering
Accounting
Duration: 3 Years
Location: TX
Major: Accounting
(CPA Eligibility
Strongly Preferred)
HR
Duration: 2-3 Years
Locations: Company Wide
Major:
Human Resources
(Master’s Required)
IT
Duration: 3 Years
Locations: Company Wide
Majors:
Computer Engineering
Computer Science
Management
Information Systems
One of the LARGEST Independent Refiners in the U.S.
CO M PA N Y
Based on information reported in our 2015 Form 10-K Filing.