INTERNSHIP DETAILS

Intern Environmental

CompanyHF Sinclair
LocationParker Township
Work ModeOn Site
PostedMarch 20, 2026
Internship Information
Core Responsibilities
The intern will support the Environmental Department by assisting staff with various environmental projects, tasks, and compliance activities, including conducting research, analysis, and preparing reports with recommendations. Essential duties involve coordinating project assignments, overseeing documentation of excess emissions, performing technical/regulatory analysis, field sampling, and managing an environmental project.
Internship Type
full time
Company Size
6269
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:

Sonneborn, an HF Sinclair company, is seeking a motivated Environmental Intern to join our Petrolia, Pennsylvania team. This position will support the Environmental Department by assisting staff with a variety of environmental projects, tasks, and compliance activities. The intern will work under close and frequent supervision while gaining hands‑on experience in environmental programs and operations.

ESSENTIAL JOB DUTIES/RESPONSIBILITIES: (functions considered essential as defined by ADA)

  • Coordinates project assignments with those of other environmental personnel and technicians in their discipline group.
  • Conducts research and analysis of environmental and operating data.
  • Provide reports from research and analysis with recommendations for improvement.
  • Oversee entry of pertinent records and documentation of excess emissions and related operating data.
  • Performs technical/regulatory analysis, field sampling and testing, and report preparation.
  • Manage a project related to an environmental matter.
  • Assists with other duties assigned by the Environmental Manager.

 

Special assignments or tasks assigned to the employee by their supervisor, as determined from time to time in their sole and complete discretion.

EDUCATIONAL LEVEL:

Some completed courses needed for a Bachelor’s Degree in an Environmental Science or Engineering field are required. Completion of junior level courses is preferred.

SKILLS:

  • Basic knowledge of Environmental concepts and EPA regulations.
  • Ability to apply knowledge analytically.
  • Stay abreast of new technological developments and processes.
  • Proficient in Microsoft Office products.
  • Experience with statistical analysis of data.

WORK CONDITIONS:

Petroleum refinery and driver-based environment including but not limited to chemical, pressure vessels, tanks, rotating equipment, working in confined spaces, and exposure to risk of electrical shock. Subject to all weather and varying road conditions.

PHYSICAL REQUIREMENTS:

Job conditions require standing, walking, sitting, talking or hearing, making visual inspections, making precise hand and finger movements, lifting or carrying up to 50 lbs, climbing up to 200 ft, perceive color differences,  required to wear personal protective equipment as needed and a respirator in emergency situations (beards are not permitted), ability to operate and drive all assigned company vehicles. Depending on location must satisfactorily complete a comprehensive medical physical examination. Job conditions may require twisting, stooping, crouching, kneeling, reaching or grasping, and working in confined spaces as 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
Environmental ConceptsEPA RegulationsAnalytical ApplicationTechnological DevelopmentsMicrosoft OfficeStatistical AnalysisData AnalysisField SamplingRegulatory AnalysisReport Preparation
Categories
Environmental & SustainabilityScience & ResearchEngineeringEnergy