Marathon Petroleum: Commercial Marine Operator Intern - Summer 2026

Role Overview

Marathon Petroleum Corporation (MPC) is dedicated to fostering a collaborative and inclusive work environment that values diverse perspectives and encourages innovation. MPC's internship and co-op programs offer high-performing college students invaluable hands-on experiences, allowing them to contribute meaningfully to the company's success. As a Commercial Marine Operator Intern, you will play a pivotal role in global vessel and cargo operations, directly impacting the safe and efficient movement of energy products worldwide.

A Day in the Life

As a Commercial Marine Operator Intern, your day will be dynamic and engaging. You’ll collaborate with experienced professionals, supporting real-time voyages for Marathon's time-chartered vessels. This involves managing day-to-day operations and logistics for waterborne cargoes, coordinating with Captains, Brokers, Chartering, Trading, Scheduling, Agents, Tug providers, Bunker Vendors, and Terminals to ensure smooth and efficient operations. You'll also gain exposure to Marine Vetting, Port Management, and the commercial aspects of the Global Marine business. You will divide your time between job shadowing, hands-on voyage management work, and a focused project that adds substantial value to the team. With guidance from your manager and a dedicated mentor, you'll enhance your skills in communication, prioritization, problem-solving, and decision-making, preparing you for future challenges in the maritime industry.

Why San Antonio, Texas?

San Antonio offers a unique blend of rich history, vibrant culture, and modern amenities. As the seventh-largest city in the United States, San Antonio boasts a diverse economy with significant presence in sectors like healthcare, bioscience, manufacturing, and technology. Its lower cost of living compared to other major cities makes it an attractive place for students and young professionals. The city's River Walk, historic missions (including the Alamo), and numerous cultural events provide endless opportunities for recreation and exploration. Moreover, San Antonio's strategic location and growing importance as a business hub make it an ideal place to start your career. Working in San Antonio provides a unique blend of professional growth opportunities and a high quality of life.

Career Path at Marathon Petroleum

Starting as a Commercial Marine Operator Intern at Marathon Petroleum can open doors to various career paths within the company. Successful interns may have opportunities to transition into full-time roles in areas such as Vessel Operations, Chartering, Marine Vetting, or Port Management. With experience and further development, you could advance into leadership positions, overseeing critical aspects of global marine operations. MPC's commitment to employee growth and development ensures that you'll have the resources and support needed to reach your full potential. The company's focus on promoting from within means that your internship could be the first step towards a long and rewarding career.

Salary and Benefits

While the internship hourly pay ranges from $24.38 to $28.44 per hour, it's important to consider the overall compensation package. Marathon Petroleum internships offer valuable benefits such as hands-on experience, mentorship, and networking opportunities. A realistic annual salary expectation for similar entry-level roles in San Antonio, Texas, falls between $42,000 and $58,000 per year, taking into account the cost of living and market demand. Beyond monetary compensation, MPC provides opportunities for professional development, skill enhancement, and career advancement. Interns may also be eligible for certain employee benefits, such as access to company resources, travel reimbursement, and housing assistance.

Marathon Petroleum Culture

Marathon Petroleum is committed to creating a workplace that values safety, integrity, inclusion, collaboration, and excellence. The company fosters a culture of respect, where diverse perspectives are welcomed and valued. Employees are encouraged to share their ideas and contribute to the company's success. MPC emphasizes environmental stewardship and ethical business practices. As an intern, you'll have the opportunity to work alongside experienced professionals who are passionate about their work and dedicated to making a positive impact. The company's commitment to employee well-being extends beyond the workplace, with various programs and initiatives aimed at promoting a healthy work-life balance.

How to Apply

To apply for the Commercial Marine Operator Intern position, visit the Marathon Petroleum careers website. Search for the job requisition ID 00020267. Ensure you meet the qualifications, including pursuing a Bachelor's degree in a Maritime-related field, having Sophomore, Junior, or Senior status, and being authorized to work in the US without visa sponsorship. Prepare your resume and cover letter, highlighting your relevant skills and experiences. Showcase your academic achievements, communication abilities, and problem-solving skills. Be ready to provide references and complete any required assessments. The application process may include interviews with hiring managers and team members. Demonstrate your enthusiasm for the role, your understanding of the maritime industry, and your commitment to MPC's core values.

FAQ

1. What is the duration of the internship? The internship typically lasts for the summer term, spanning approximately 10-12 weeks.
2. Is housing provided for interns? Housing assistance or a stipend may be provided based on distance from the work location. Contact HR or the hiring manager for clarification.
3. What kind of projects will I be working on? You'll be involved in a focused project that adds value to the Commercial Marine Operations team, aligned with your skills and interests.
4. Will I have a mentor? Yes, you will be assigned a dedicated mentor who will provide guidance and support throughout your internship.
5. What are the working hours? The standard working hours are Monday to Friday, 8-hour days, 40 hours per week.
6. Is travel required for this role? Limited travel (up to one week of overnight travel) may be required, so a valid driver's license is necessary.
7. What skills will I develop during this internship? You will strengthen your verbal and written communication, prioritization, multi-tasking, analytics, problem-solving, risk management, decision-making, and teamwork skills.
8. What is the dress code? The dress code is typically business casual.
9. Are there opportunities for full-time employment after the internship? Successful interns may be considered for full-time employment opportunities based on performance and business needs.
10. Who should I contact if I have questions about the internship? Contact the Marathon Petroleum HR department or the hiring manager listed in the job posting.