Title: Intern, Internal Audit (Fall 2026)

Date: May 4, 2026

Location:

Dallas, TX, US, 75219

Basic Function

HF Sinclair in Dallas, TX is seeking a Fall 2026 Internal Audit Intern from approximately August - early December 2026. The Intern will conduct routine auditing assignments for the Internal Audit department under direct supervision.

Job Duties

Perform testing of key controls, including control effectiveness and exception analysis under supervision
Identify control deficiencies and assist in drafting observations and recommendations
Collaborate with process owners to understand controls and obtain supporting documentation
Maintain and organize audit workpapers in compliance with Internal Audit documentation standards
Assist in tracking and following up on remediation of control deficiencies
Participate in Internal Audit projects as needed

Experience

None.

Education Level

Currently pursuing a Bachelor’s or Master’s degree in Accounting, Internal Audit, or Finance or a related field
Junior Classification
Coursework in auditing, internal controls, or regulatory compliance
Experience with audit or GRC tools (e.g., AuditBoard, Workiva, SAP, Oracle) is a plus
GPA 3.3 or higher

Required Skills

Basic understanding of internal controls and SOX 404 requirements
Strong attention to detail, with the ability to analyze and interpret data accurately
Excellent communication and documentation skills
Proficiency in Microsoft Excel and Word
Ability to work independently, meet deadlines, and manage multiple tasks
High level of integrity and discretion when handling confidential information

Work Conditions

This internship is based in-office at our Dallas, TX location
Standard business hours apply, with occasional flexibility depending on project needs
Interns are expected to be present and engaged on-site throughout the duration of the program

Physical Requirements

Job conditions require standing and walking.

Our One HF Sinclair Culture:

At HF Sinclair, we are united through our One HF Sinclair Culture, which is underpinned by our five core values of Safety, Integrity, Teamwork, Ownership and Inclusion. Developed to empower our people, our five core cultural values are at the heart of everything we do and extend to how we engage our stakeholders. These values influence our decisions, shape our behaviors and keep us connected across the entire organization. We maintain a true Safety culture for our employees, communities, environments and customers. Our goal is to make sure everyone returns home safely each day. We have a long-standing commitment to Integrity and ethical behavior and do what is right for our employees, investors, communities and the environment. We encourage employees to Step Up and Stand Out by championing a culture of Teamwork and Ownership. We foster a culture of Inclusion by encouraging diversity of experiences, viewpoints and backgrounds. What makes each of us different, together makes us stronger.

About HF Sinclair Corporation

HF Sinclair Corporation, headquartered in Dallas, Texas, is an independent energy company that produces and markets high-value light products such as gasoline, diesel fuel, jet fuel, renewable diesel and other specialty products. HF Sinclair owns and operates refineries located in Kansas, Oklahoma, New Mexico, Wyoming, Washington and Utah and markets its refined products principally in the Southwest U.S., the Rocky Mountains extending into the Pacific Northwest and in other neighboring Plains states. HF Sinclair supplies high-quality fuels to more than 1,500 branded stations and licenses the use of the Sinclair brand at more than 300 additional locations throughout the country. In addition, subsidiaries of HF Sinclair produce and market base oils and other specialized lubricants in the U.S., Canada and the Netherlands, and export products to more than 80 countries. Through its subsidiaries, HF Sinclair produces renewable diesel at two of its facilities in Wyoming and also at its facility in Artesia, New Mexico. HF Sinclair provides petroleum product and crude oil transportation, terminalling, storage and throughput services to its refineries and the petroleum industry.

Equal Opportunity Employer

HF Sinclair Corporation is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status or any other prohibited ground of discrimination.