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Marathon Petroleum

Refines and sells gasoline, diesel and jet fuel

Refinery Operations Shift Supervisor

Full-TimePosted on 10/22/2026Deadline 11/9/26
$122.9k - $184.3k+ Discretionary annual bonus
Mid
Martinez, CA, USA
In PersonOnsite rotating schedule: 4 days on/4 days off, 12-hour shifts alternating days and nights; 5% travel.
Manufacturing & Production OperationsMachine & Process Operation
No H1B Sponsorship

About the job

Requirements
  • A high school diploma or GED is required.
  • At least four years of experience as an oil refining operator or renewables facility operator is required.
  • Proficiency in Microsoft 365, including Word, Excel, and Outlook, is required.
  • Must be able to wear appropriate refinery personal protective equipment, including a respirator, physically perform all field tasks, and complete a hair drug test and physical.
  • A valid driver's license is required.
  • Must be able to obtain a Transportation Worker Identification Credential (TWIC) card.
  • Must be legally authorized to work in the United States without the need for future visa sponsorship.
  • Must be able to work the onsite rotating schedule of four days on and four days off, in 12-hour shifts alternating between days and nights, and support after-hours calls and maintenance outages.
  • Must be able to travel 5%.
Responsibilities
  • Create an ownership culture by setting clear expectations and holding people accountable in support of Operational Excellence.
  • Establish and maintain a culture of safety and environmental excellence by modeling appropriate behaviors and ensuring employees follow safe work and operating best practices.
  • Lead shift conduct of operations, including shift relief and start-of-shift meetings, job planning, equipment preparation, work permitting, Joint Job Site Visits, and proactive unit monitoring.
  • Lead safe, efficient, effective, and compliant implementation of the production plan; communicate and reinforce the plan, report unit status and constraints, and coordinate unit performance to keep variables within the operating envelope.
  • Support unit reliability goals through proactive equipment care and condition monitoring; review operator rounds, develop mitigation responses, communicate issues to leadership, and ensure timely equipment preparation for maintenance.
  • Determine needed emergency maintenance support.
  • Coordinate responses to abnormal situations, including troubleshooting and mitigation or recovery activities, and ensure effective communication with affected units and Operations leadership.
  • Qualify for, operate, and cover a console position as needed.
  • Support performance and development through training, coaching, and mentoring.
  • Manage operator scheduling.
  • Maintain day-to-day standards and policy compliance, including operator training, quality pre-startup safety reviews, management of change requirements, and procedure utilization.
  • Lead execution of what-if drills to improve operational readiness and shift upskilling.
  • Use internally established systems, including OpsCore, Procedure Accelerator, Go Plant, Equipment Bypass, and My Ops (asset Intellect).
  • Communicate with multiple levels of the site organization.
  • Foster a positive work environment that encourages operator retention.
  • May support or assume responsibilities of Operations Projects Specialist, Operations Training Specialist, Operations Turnaround Specialist, Operations Shift Supervisor, Operations Refinery Wide Shift Supervisor, and Operations Superintendent roles.
Desired Qualifications
  • Previous board console operator experience is strongly preferred.
  • Previous experience as a supervisor or fill-in supervisor is strongly preferred.

About the company

Marathon Petroleum refines crude oil into gasoline, diesel, jet fuel and other products for wholesale buyers and branded fuel stations across the United States. It runs what it calls the nation's largest refining system, with 13 refineries spread across the Gulf Coast, Mid-Continent and West Coast. Its fuel reaches drivers under the Marathon and ARCO brands, and it co-owns a California plant with Neste that makes renewable diesel from fats and plant oils. The company earns most of its money selling refined fuels, while its controlled partnership MPLX gathers, processes and moves natural gas, crude oil and fuel. Marathon Petroleum traces its roots to 1887 and is based in Findlay, Ohio.

Company Size

10,001+

Company Stage

IPO

Headquarters

Findlay, Ohio

Founded

1887

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Simplify's Take

What believers are saying

  • Profits are strong: MPC reported $5.1 billion of second-quarter net income, or $17.73 per share, in August 2026.
  • Union pay is set: Marathon's February 2026 national deal gives USW hourly workers 15% raises over four years.
  • Scale offers varied roles: about 18,500 employees work across refining, fuel marketing and midstream operations.

What critics are saying

  • Labor ties are strained: Marathon locked out about 120 Martinez union workers in June 2026 after an April strike.
  • Long-term fuel demand is exposed: its 10-K lists alternative-fuel vehicles and laws mandating them as business risks.
  • Profits ride fuel spreads: its refining margin jumped from $17.58 to $36.33 a barrel in one year.

What makes Marathon Petroleum unique

  • It runs the largest U.S. refining system: 13 refineries with about 3 million barrels a day of capacity.
  • A gas business sits beside refining: its MPLX partnership has 8.1 billion cubic feet of daily gas-processing capacity.
  • It also makes renewable diesel: its Martinez, California plant, a 50/50 venture with Neste, converted from crude refining.

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Benefits

  • Health Insurance
  • Dental Insurance
  • Vision Insurance
  • Paid Vacation
  • 401(k) Company Match
  • Parental Leave
  • Professional Development Budget
  • Performance Bonus

Growth & Insights and Company News

6 month growth

11%

1 year growth

11%

2 year growth

11%
CStore Decisions
Oct 20th, 2026
Marathon named a Top company for Women to Work in Trucking.

Marathon named a Top company for Women to Work in Trucking. Oct 20 2026 Operations & Marketing This marks the fifth consecutive year the company has earned the designation. Marathon Petroleum Corp. (MPC) has been included in Women In Trucking's (WIT) 2026 list of Top Companies to Work in Trucking. The recognition highlights companies across the commercial freight transportation marketplace that are creating workplaces where all employees can build careers, lead and grow, according to a statement from Marathon. MPC was selected through a two-step process that includes a review of nominated companies based on key criteria, including a corporate culture of inclusion, competitive compensation and benefits, flexible hours and work requirements, professional development opportunities and career advancement opportunities. The nomination was then validated by an industrywide vote involving more than 18,000 trucking professionals, including executive management, operations, safety, HR and talent management executives, and professional drivers. This is the fifth straight year MPC has earned the recognition. MPC also was named to "The Elite 30," which recognizes the 30 companies that generated the highest number of industrywide votes in the program. "This recognition program highlights the trucking industry leaders that are making meaningful investments in building more inclusive and supportive workplaces," said Brian Everett, group publisher and editorial director of Redefining the Road magazine. "Recognizing these companies celebrates the progress they've made and the positive example they continue to set for the industry." The list includes motor carriers, third-party logistics companies and original equipment manufacturers. "This recognition is meaningful because it reflects the work our teams do every day to create an environment where members of our transport team, including drivers, can succeed safely, feel supported and see a long-term future in transportation," said Katie Meschede, Marathon Petroleum Transport Operations Director West. "Safety is the key to our operations, and that fundamental commitment goes hand in hand with building a culture where people have the resources, training and opportunities to grow." Industry recognition. As Marathon continues to receive industry accolades for its commitment to culture, it is simultaneously being recognized for safety. Last week, Marathon Petroleum's Garyville refinery in Louisiana was re-certified as a Voluntary Protection Programs (VPP) Star site by the Occupational Safety and Health Administration (OSHA), continuing a designation Garyville has held since 1994. Garyville's history with VPP goes back even further. The refinery began working with OSHA in the 1980s as the agency developed the program and later became the first refinery in Louisiana to earn VPP Star status. Garyville remains among the longest-running VPP Star refineries in the country. VPP Star is OSHA's highest level of recognition for workplaces with comprehensive safety and health management systems and a strong commitment from employees and management. "Maintaining VPP Star status for 32 consecutive years reflects the dedication of every employee and contractor who works safely, looks out for one another, and continuously seeks opportunities to improve," said Holly Jackson, vice president of refining at the Garyville refinery. "This achievement demonstrates that safety remains a foundational commitment at Garyville and a key part of how we operate every day." This year's recertification included interviews with dozens of employees and contractors, refinery tours and a review of safety programs. Evaluators highlighted the pride and engagement of the workforce, and the initial review concluded with no findings or corrective actions.

Yahoo Finance
Oct 18th, 2026
Three US refiners to watch as fuel costs lift margins: Marathon Petroleum, HF Sinclair, PBF

Higher fuel costs are pushing up airfares, delivery fees, and trucking prices, and putting US refiners in focus. Simply Wall St highlights three that stand to gain when refining margins hold firm. HF Sinclair has about $31.2 billion in annual revenue, $27.7 billion of it from refining, and a market value of about $22.3 billion. The WTI 3-2-1 crack spread was around $59 per barrel in mid 2026, with several million barrels per day of global refining capacity offline. Marathon Petroleum earns about $144.6 billion from refining and marketing and has a market value near $134.3 billion. It is investing in refineries at Galveston Bay, Garyville, Robinson, and El Paso. PBF Energy has a market value near $10.1 billion and made about $34.4 billion from refining. It recently bought the Torrance hydrogen plants.

Yahoo Finance
Oct 17th, 2026
Diesel at $6.20 a gallon: Marathon leads five energy stocks set to gain

US diesel prices averaged $6.199 a gallon for the week of October 5, the US Energy Information Administration (EIA) said. That is down from a 2026 peak of $6.529 in late September but more than $2.50 above a year ago. A disruption to Strait of Hormuz shipping earlier this year cut global refined fuel exports. Refiners gain most. Marathon Petroleum's refining margin doubled to $36.33 a barrel in the second quarter, from $17.58 a year earlier. Integrated majors also benefit. Chevron's downstream earnings rose to $4.9 billion from $737 million, while ExxonMobil's refining and fuels earnings reached $4.1 billion, nearly double a year earlier. Pipeline firms Energy Transfer and Enterprise Products Partners earn mostly fees, so they get little direct lift. The EIA expects prices to stay high through October before easing.

CStore Decisions
Oct 13th, 2026
Marathon refinery marks 32 years with safety distinction.

Marathon refinery marks 32 years with safety distinction. Oct 13 2026 Operations & Marketing The refinery has held the highest safety recognition since 1994. Marathon Petroleum's Garyville refinery in Louisiana has once again been re-certified as a Voluntary Protection Programs (VPP) Star site by the Occupational Safety and Health Administration (OSHA), continuing a designation Garyville has held since 1994. Garyville's history with VPP goes back even further. The refinery began working with OSHA in the 1980s as the agency developed the program and later became the first refinery in Louisiana to earn VPP Star status. Garyville remains among the longest-running VPP Star refineries in the country. VPP Star is OSHA's highest level of recognition for workplaces with comprehensive safety and health management systems and a strong commitment from employees and management. "Maintaining VPP Star status for 32 consecutive years reflects the dedication of every employee and contractor who works safely, looks out for one another, and continuously seeks opportunities to improve," said Holly Jackson, vice president of refining at the Garyville refinery. "This achievement demonstrates that safety remains a foundational commitment at Garyville and a key part of how we operate every day." This year's recertification included interviews with dozens of employees and contractors, refinery tours and a review of safety programs. Evaluators highlighted the pride and engagement of the workforce, and the initial review concluded with no findings or corrective actions. OSHA followed with a closer look at lessons learned from previous incidents and improvements made since. The review found Garyville continues to meet the high safety standards required for VPP Star status, recognizing its strong safety culture, ongoing improvements and commitment to protecting its workforce. "This recertification validates the strong safety culture that exists at Garyville and the innovative work being done across the refinery," said Jeremy Beasley, refining environmental, safety & security director at the Garyville refinery. "From Digital Transformation and Corrosion Management initiatives to improvements in energy isolation, emergency response and process safety, our workforce continues to find new ways to improve reliability and protect people. Achieving 32 years of VPP Star status is an accomplishment we should all be proud of."

دار الخليج للصحافة والطباعة والنشر
Oct 2nd, 2026
325.5 billion dollars in 2026... profits of American refining companies

325.5 billion dollars in 2026... profits of American refining companies * Refined products offset crude costs * $243 billion in profits for 8 companies in 2025 * Oil refinery output highest in 5 years October 2, 2026 12:19 pm | Last updated: October 2, 2026 13:09 Reading time - 2 minutes Independent American refineries are expected to generate $325.5 billion in revenue in 2026, driven by record margins, supply disruptions, and increased production and exports amid calls for government intervention. The Financial Times said that revenues of the eight independent American refining companies are expected to reach $325.5 billion during the current year, compared with $242.9 billion the previous year, based on the companies' second-quarter results and Wall Street's third-quarter forecasts. This jump comes as the rise in crude oil costs is offset - more than expected - by strong prices for refined products, pushing refining margins to record levels. Arne Schiaveland, an analyst at Rystad Energy, points out that fuel supply disruptions caused by conflicts in the Middle East and Russia are radically changing financial performance, with profit margins approaching levels not seen by markets except during the 2022 energy crisis. The three largest independent oil refining companies - Valero, Marathon Petroleum, and Phillips 66 - are expected to achieve net profits of $8.7 billion, $10.9 billion, and $7.9 billion, respectively, during the six months ending in September. All eight refining companies are also expected to maintain their profitability in the third quarter, as they raise production rates to record levels to meet the global shortage in diesel and other fuel supplies. U.S. refinery output reached its highest level in five years, recording 17.4 million barrels per day in August, as facilities operated at more than 95% of their production capacity for 15 consecutive weeks - the longest such period since 1998 - according to Rystad Energy data. Exports of diesel, gasoline, jet fuel, and naphtha rose to 2.8 million barrels per day, compared with 2.3 million barrels the previous year, as buyers in Europe and Latin America sought alternatives to limited supplies coming from the Middle East and Russia. Integrated oil companies are also benefiting from this situation; Chevron announced its highest quarterly profit in its history during the three months ending in June, while Exxon Mobil recorded its strongest quarterly profit since 2022. This profit boom has escalated calls for intervention in Washington, including calls to impose a ban on diesel exports or impose a windfall profits tax on oil companies. Democrats are pushing toward passing the Big Oil Windfall Profits Tax Act, while some Republican lawmakers from agricultural states support imposing restrictions on exports, hoping to lower fuel costs for farmers. The Trump administration is studying options for dealing with the sharp rise in diesel and gasoline prices ahead of the midterm elections scheduled for November, but it has so far resisted the idea of imposing an export ban. Energy analysts warn that such a move could push refining companies to reduce production and raise prices for other types of fuel, while the American Petroleum Institute stresses that refineries are already operating near maximum capacity, and that current price levels reflect a severe disruption in global supplies, not deliberate behavior by companies. The war and the expansion of sanctions imposed on Iran have increased concerns about supply disruptions, pushing Brent crude and West Texas Intermediate prices sharply higher.