Refining Area Inspector

Refining Area Inspector

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.

The Marathon Los Angeles Refinery located in Carson/Wilmington, California is seeking an experienced Area Inspector to serve as the primary point of contact for fixed equipment integrity issues, including pressure vessels and piping circuits. This role ensures all fixed equipment complies with state regulations, refining standards, and company specifications. The Area Inspector will identify, communicate, and collaborate with operations and maintenance teams to mitigate mechanical integrity risks.

This position follows a MondayThursday onsite work schedule 10-hour shifts and core business hours are 6:00 AM - 4:30 PM. Candidates must also be available to work extended work hours as needed, support on-call 5 full weeks per year, support turnarounds and both planned and unplanned outages which can occur outside regular working hours.

Key Responsibilities

• Conduct thorough, hands-on field inspections to evaluate the condition of area equipment.
• Monitor the condition of area equipment by planning, performing, and directing inspections, and recommend appropriate mitigation measures for equipment requiring repair or replacement.
• Conduct jurisdictional inspections on CAL/OSHA-regulated equipment, such as boilers.
• Maintain accurate equipment files and collaborate with the RBI Analyst to keep risk assessments current, ensuring compliance with MPC standards.
• Develop scope and provide supporting documentation (justification, timing, preparation, etc.) for mechanical integrity work on fixed equipment, including routine maintenance, major repairs, and turnarounds.
• Complete assigned Management of Change (MOC) and INTELEX tasks as directed by the Area Team Leader.
• Document "as-found" and "as-left" conditions of fixed equipment to support risk-based work planning.
• Partner with engineering and area teams to identify and support projects that enhance equipment reliability.
• Assist in problem-solving using tools such as life cycle cost analysis, root cause analysis, HAZOPs, equipment history reviews, and risk-based work selection.
• Participate in required training programs as identified by the Inspection Supervisor.
• Serve as Program Manager for specialty projects and programs that support mechanical integrity at LAR.

Education, Experience and Skills:

Minimum Qualifications

• Must have a High School Diploma or GED (Must be completed prior to start date).
• Must have at least 5 years of Area Inspection experience in a refinery or petrochemical facility.
• Must have a current API 510 (Pressure Vessel Inspection) and API 570 (Piping Inspection) certifications.
• Must have the ability to obtain NBIC Certification and State of California Certificate of Competency.
• Must be familiar with Risk-Based Inspection (RBI) methodologies in accordance with API 580 and 581.
• Proficiency in Microsoft Word, Excel, and Outlook.
• Must have good facilitation and leadership skills for conducting meetings. Must have effective communication and coordination skills across multiple organizational levels, including operations, maintenance, and engineering.
• Must be able to wear required PPE (including respirator), perform physical tasks in the field, and successfully pass a hair drug test and physical examination.
• Must have a valid driver's license.
• Must be legally authorized to work in the U.S. without future visa sponsorship.
• Must be willing to travel up to 5%.
• Must be able to work MondayThursday onsite work schedule 10-hour shifts and core business hours are 6:00 AM - 4:30 PM. Candidates must also be available to work extended work hours as needed, support on-call 5 full weeks per year, support turnarounds and both planned and unplanned outages which can occur outside regular working hours.

Preferred Qualifications

• At least 5 years of experience as an owner/operator inspector in a refinery or petrochemical facility, focusing on fixed equipment is preferred.
• Possession of NBIC Certification and State of California Certificate of Competency, with relevant experience is preferred.
• Current API 510 (Pressure Vessel Inspection) and API 570 (Piping Inspection) certifications, with a minimum of 10 years of inspection experience is preferred.
• Experience and/or knowledge of API 653, API 571, API 580, API 581, and NBIC standards is preferred.
• Experience and/or knowledge of ASNT Level II methods, including UTT, RTFI, MT, and PT is preferred.
• Proven experience in turnaround planning and execution for inspection activities is preferred.
• Familiarity with inspection software such as Meridium, APM, or PCMS is preferred.
• Experience maintaining fixed equipment in accordance with Recognized and Generally Accepted Good Engineering Practices (RAGAGEP) is preferred.

Job will be posted through Tuesday, Sept 8, 2026.

Relocation is available.

This position belongs to a family of jobs with increasing responsibility, competency and skill level. Actual position title and pay grade will be based on the selected candidate's experience and qualifications.

Learn more about Marathon Petroleum's benefits at

As an energy industry leader, our career opportunities fuel personal and professional growth.

Location: Carson, California

Job Requisition ID: 00023374

Pay Min/Max: $106,900.00 - $184,300.00 Salary

Grade: 11 - 12

Location Address: 2350 E 223rd St

Additional locations: Wilmington, California

Education: High School (Required)

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, citizenshipor 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 View email address on click.appcast.io. 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.