INTERNSHIP DETAILS

Intern, Internal Audit

CompanyHF Sinclair
LocationDallas
Work ModeOn Site
PostedOctober 3, 2025
Internship Information
Core Responsibilities
Intern Auditors will conduct routine auditing assignments under direct supervision, assisting with maintaining documentation and testing internal controls for Sarbanes-Oxley compliance efforts. They will also help the team conduct routine financial and operational risk-based audits and maintain documentation of process-related controls.
Internship Type
full time
Company Size
6256
Visa Sponsorship
No
Language
English
Working Hours
40 hours
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About The Company
Headquartered in Dallas, Texas, HF Sinclair Corporation is an independent, diversified energy company committed to safely producing products that power the world. HF Sinclair is the parent company to a number of subsidiaries who own or license a diverse slate of brands, including Sinclair Oil, Petro-Canada Lubricants, Sonneborn, Red Giant Oil and HollyFrontier Specialty Products. Established in March 2022 as a result of the acquisition of Sinclair Oil LLC by HollyFrontier Corporation, HF Sinclair has: - More reach to support the everyday needs of consumers; - More value for our customers, employees, communities and shareholders as a result of safely operating with an environmental, social and governance mindset; and - More strength for the communities in which we live, work and serve. Today, HF Sinclair: - Manufactures and sells high-value light products such as gasoline, diesel fuel, jet fuel, renewable diesel, specialty lubricant products, and specialty and modified asphalt. - Owns and operates refineries and/or renewable diesel facilities in Kansas, New Mexico, Oklahoma, Utah, Washington and Wyoming. - Markets and distributes motor fuel to consumers via more than 1,600 independent Sinclair-branded stations in 30 American states. - Produces low carbon renewable diesel from multiple feedstocks including vegetable oils and animal fats. - Produces base oils and other specialized lubricants in the U.S., Canada and the Netherlands and exports such products to more than 80 countries. - Owns a 47% limited partner interest and a non-economic general partner interest in Holly Energy Partners, L.P. (NYSE: HEP), a midstream petroleum products and crude oil transportation, terminalling and storage company.
About the Role

Basic Function

HF Sinclair in Dallas, TX is seeking Intern Auditors for 2026. The Intern Auditors will conduct routine auditing assignments for the Internal Audit department under direct supervision.

Job Duties

(functions considered essential as defined by ADA)
  • Assists with maintaining documentation and testing of internal controls over financial reporting for the Company€™s Sarbanes-Oxley compliance efforts
  • Assists team in conducting routine financial and operational risk-based audits and review of internal controls of the Company€™s operations
  • Maintains documentation of process-related controls, including flowcharts and matrices
  • Performs routine audit fieldwork testing
  Special assignments or tasks assigned to the employee by their superior, as determined from time to time in their sole and complete discretion.

Experience

None.

Education Level

Some completed courses needed for a Bachelor's Degree in internal audit, accounting or finance, are required.  
 PREFERRED EDUCATIONAL LEVEL: Concentration in internal audit, accounting or finance is preferred.

Required Skills

Basic ability to perform routine audit tasks and some financial analysis. Working knowledge of Microsoft Office products; entry level understanding of generally accepted accounting principles (GAAP), finance concepts and procedures. Intermediate reading and writing, ability to effectively communicate with others, both written and verbal communication, and interpersonal skills; ability to perform basic math calculations.   PREFERRED SKILLS: Experience with ERP financial software is preferred.

Supervisory/Managerial Responsibility

Work Conditions

Office based with up to 20% travel by land and air required. Petroleum refinery, warehouse/plant environment and out-of-doors environment including but not limited to chemicals, pressure vessels, and tanks, and rotating equipment. Subject to all temperatures, weather and varying road conditions.

Benefits

HF Sinclair offers a comprehensive benefits package designed to support the well-being of our employees and their families. Our benefits include, but are not limited to, the following:
  • Medical Insurance
  • Vision Insurance
  • Dental Insurance
  • Paid Time-Off
  • 401(k) Retirement Plan with match
  • Educational Reimbursement
  • Parental Bonding Time
  • Employee Discounts
We are committed to fostering a supportive and inclusive work environment, ensuring our employees have the resources needed to thrive professionally and personally. Benefit eligibility is governed by official plan documents, for more details visit Total Rewards.

Physical Requirements

Job conditions require standing, walking, sitting, twisting, stooping, crouching, kneeling, talking or hearing, making visual inspections, making precise hand and finger movements, reaching or grasping, lifting and/or carrying up to 20lbs, pushing and/or pulling up to 20lbs, climbing up to 40 ft, perceiving color differences, ability to operate and drive all assigned company vehicles at company standard insurance rates is essential, valid State driver€™s license and proof of insurance, and wearing personal protective equipment (beards not permitted).

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.

Key Skills
Internal AuditFinancial AnalysisMicrosoft OfficeGAAPFinance ConceptsAudit Fieldwork TestingInternal ControlsRisk-Based AuditsDocumentation MaintenanceReadingWritingCommunicationInterpersonal SkillsBasic Math Calculations
Categories
Finance & AccountingEnergyAdministrative
Benefits
Medical InsuranceVision InsuranceDental InsurancePaid Time-Off401(k) Retirement Plan with matchEducational ReimbursementParental Bonding TimeEmployee Discounts