Refinery Operator Trainee

Marathon Petroleum CorporationMarathon Petroleum CorporationCarson, California, United States | Los Angeles, California, United States
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Posted

10/12/2026

Employment

Full time

Range

$41 - $62/hr

Work style

On-site

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AI summary

Core responsibilities

Operators monitor, regulate, and operate complex process equipment to produce quality products in a safe and efficient manner. They work closely with team members in a safety-sensitive environment while adhering to strict operational protocols.

Requirements overview

Candidates must have a High School Diploma or GED plus relevant technical education or industry experience. Applicants must also pass pre-employment assessments, including mechanical aptitude and mathematics tests, and possess a valid driver's license.

Key skills

Process operationsMechanical aptitudeMathematicsChemistryPhysical scienceEquipment monitoringSafety complianceTroubleshootingAlgebraRefining operations

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Education requirements

high schoolassociate degreebachelor degree

About Marathon Petroleum Corporation

Industry

Oil and Gas

Employees

16,447

Type

Public Company

Size

10,001+ employees

Marathon Petroleum Corporation (MPC) is a leading, integrated, downstream and midstream energy company headquartered in Findlay, Ohio. The company operates the nation's largest refining system. MPC's marketing system includes branded locations across the United States, including Marathon brand retail outlets. MPC also owns the general partner and majority limited partner interest in MPLX LP, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure. More information is available at www.marathonpetroleum.com.

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Job categories

EnergyManufacturingTradesSecurity & Safety

Description

An exciting career awaits you At MPC, we’re committed to being a great place to work – one that welcomes new ideas, encourages diverse perspectives, develops our people, and fosters a collaborative team environment. POSITION SUMMARY The Marathon Los Angeles Refinery is currently seeking applicants to fill full-time new Operations Trainee positions at our Wilmington and Carson, CA locations. Operators work closely with team members to monitor, regulate and operate complex process equipment to produce quality products in a safe, environmentally sound and efficient manner. Operators work in a safety-sensitive environment and must successfully complete an extensive pre-employment assessment process, drug/alcohol and medical screenings, and a background check. To ensure safe operations, new hires must also successfully complete operator qualification training and participate in continuous random drug and alcohol screenings. Successful candidates will have a solid understanding of physical science, chemistry and mathematics, including algebra; a passing score on pre-employment test including mechanical aptitude, reading and mathematics. EDUCATION AND EXPERIENCE High School Diploma or GED equivalent is required, plus one of the following: Associate’s degree in Process Technology, Mathematics, Science, a technical or chemical discipline, or a related field; Four-year STEM-related degree (Science, Technology, Engineering, or Mathematics); Three years of refining operations experience; or Five years of experience in the petrochemical industry. Military experience is preferred. A valid Driver's License is required. Physical Requirements Work is performed at ground level and at heights on concrete, metal grating, gravel, asphalt and piping surfaces. Employees must be able to: Climb and work safely at varying elevations. Lift 40 pounds or more and carry 10 to 20 pounds. Push or pull up to 250 pounds with mechanical assistance. Work in confined spaces. Schedule Operators work 12-hour rotating shift schedules (day and night) and must be available for overtime. Pay and Benefits Minimum starting rate is $41.41/hour with the ability to earn up to $62.45 within four years. Marathon offers highly competitive benefits including retirement and medical. These are represented positions within the refinery. Build a rewarding career where safety, teamwork, and continuous learning matter. As an energy industry leader, our career opportunities fuel personal and professional growth. Location: Carson, California Job Requisition ID: 00024620 Pay Min/Max: $0.00 - $999.99 Hourly Grade: HRLY1 Location Address: 2350 E 223rd St Additional locations: Wilmington, California Education: Employee Group: Full time Employee Subgroup: Regular Marathon Petroleum Company LP is an Equal Opportunity Employer and gives consideration for employment to qualified applicants without discrimination on the basis of race, color, religion, creed, sex, gender (including pregnancy, childbirth, breastfeeding or related medical conditions), sexual orientation, gender identity, gender expression, reproductive health decision-making, age, mental or physical disability, medical condition or AIDS/HIV status, ancestry, national origin, genetic information, military, veteran status, marital status, citizenship or any other status protected by applicable federal, state, or local laws. If you would like more information about your EEO rights as an applicant, click here. If you need a reasonable accommodation for any part of the application process at Marathon Petroleum LP, please contact our Human Resources Department at talentacquisition@marathonpetroleum.com. Please specify the reasonable accommodation you are requesting, along with the job posting number in which you may be interested. A Human Resources representative will review your request and contact you to discuss a reasonable accommodation. Marathon Petroleum offers a total rewards program which includes, but is not limited to, access to health, vision, and dental insurance, paid time off, 401k matching program, paid parental leave, and educational reimbursement. Detailed benefit information is available at mympcbenefits.com. The hired candidate will also be eligible for a discretionary company-sponsored annual bonus program. Equal Opportunity Employer: Veteran / Disability We will consider all qualified Applicants for employment, including those with arrest or conviction records, in a manner consistent with the requirements of applicable state and local laws. In reviewing criminal history in connection with a conditional offer of employment, Marathon will consider the key responsibilities of the role.

Requirements

  • •Process operations
  • •Mechanical aptitude
  • •Mathematics
  • •Chemistry
  • •Physical science
  • •Equipment monitoring
  • •Safety compliance
  • •Troubleshooting
  • •Algebra
  • •Refining operations

Benefits

  • •Health insurance
  • •Vision insurance
  • •Dental insurance
  • •Paid time off
  • •401k matching program
  • •Paid parental leave
  • •Educational reimbursement
  • •Annual bonus program
  • •Retirement benefits

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