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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.


Marathon Petroleum Company is seeking a Chemist for the Catlettsburg Refinery located in Catlettsburg, KY. This position is located in the Products Control organization and reports to the Laboratory Supervisor.


  • Facilitate instrument maintenance – Oversee routine maintenance, troubleshoot/repair as needed, and/or coordinate contractor support.
  • Learn Refinery Lab Methodology (ASTM, UOP and Internal Methods).
  • Routine SQC monitoring.
  • Review procedures for continued applicability and safety hazards, and write/edit procedures or work instructions as needed. Also, ensure conformance to ASTM or other referenced methods.
  • Evaluate new instrumentation – obtain quotes, ensure application is appropriate, schedule installs, ensure appropriate infrastructure.
  • Effectively communicate delays in data flow to customers and understand how customers use data.
  • Understand the analytical methods and limitations for areas of responsibility.
  • Review and optimize sample schedule and sampling frequency.
  • Know specifications and consequences for processes and finished products.
  • Become familiar with area-specific on-line instrumentation capabilities and communicate trends and action points to Instrumentation and area team.
  • Serves as the Lab representative on a refinery area team.


  • A Bachelor’s degree in Chemistry or a related field with four Chemistry courses and two Chemistry labs is required. (Education must be obtained/completed prior to start date)
  • Minimum 4 or more years of relevant experience is required.
  • Travel Expected: Up to 10%

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


Catlettsburg, Kentucky

Additional locations:

Job Requisition ID:


Location Address:

11631 US Route 23


Bachelors (Required)

Employee Group:

Full time

Employee Subgroup:


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 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 hired candidate will also be eligible for a discretionary company-sponsored annual bonus program.

Equal Opportunity Employer: Veteran / Disability