Respond to a drifting gauge
Keep watching temperature and pressure gauges, and if one drifts, consult the written procedure, then adjust controls.
Career profile
Refinery and Petroleum Pump Operator
Refinery operators run the equipment that treats petroleum and moves it through pipes and tanks.
Every number on the gauges tells you something about how a valve or pump is behaving.
A day in the life
Route oil to the right tank
Trace the oil's planned route, coordinate valve switches by radio, then confirm it passes the correct meter.
Make rounds on running pumps
Walk the unit, inspect running pumps, refill a low lubricator, and write faults plainly in a maintenance request.
Hand off the unit's status
Write the unit's current state in the turnover log so the incoming operator sees which machines need care.
Quick facts
High school + workplace training
United States · 2025
$96,710/year
United States · May 2025
1.9% employment decline
United States · 2025–2035
Quick orientation
Preparation, pay & outlook
Preparation
High school + workplace trainingA diploma or equivalent is the typical starting education. Employers may add experience or technical-school requirements.
Pay
$96,710/yearMedian pay was $46.50 an hour for petroleum pump system operators, refinery operators, and gaugers combined.
Outlook
1.9% employment declineAbout 2,700 openings a year are projected nationally for the combined occupation, despite declining employment.
Fit, tradeoffs & changing tools
You might like this if…
- You like tracing a mechanical problem back to its cause.
- You can repeat careful checks without rushing through them.
- You explain what changed clearly enough for someone else to take over.
Things to weigh
- Some refineries use rotating 12-hour shifts, with overtime and on-call duties. That can disrupt sleep and weekend plans.
- Outdoor rounds mean weather, noise and protective gear.
Where AI may help
Computer controls already help regulate flow and display operating readings.
What people still lead
You investigate equipment problems and communicate what needs attention.
What we can’t predict yet
How much troubleshooting becomes automated will depend on the equipment and the reliability of its measurements.
Pay in context
Earnings
The national median is $96,710 a year, or $46.50 an hour. These figures combine petroleum pump operators, refinery operators and gaugers.
The pay spread
The lowest-paid 10% earned $57,110 or less; the highest-paid 10% earned $115,880 or more. Those are wage percentiles, not starting and senior pay rates.
Compare the whole offer
The wage survey excludes overtime pay and extra pay for particular shifts. Ask for the base rate, shift premium and overtime expectations separately.
Openings despite a smaller workforce
Employment is projected to fall 1.9% from 2025 to 2035, with about 2,700 openings per year across the combined occupation. Openings do not mean the workforce is growing.
Getting started
Apply for operator-trainee employment
- What the route involves
- Learn a refinery unit's equipment and procedures while working with its crew and completing formal operator training.
- What it can lead to
- You build the plant-specific knowledge needed to operate the unit.
- What to check
- Requirements vary. At Chevron's Pascagoula refinery, applicants need a diploma or equivalent, a driver's license, and either two years of work experience or a process-technology degree.
Study process technology
San Jacinto College's degree takes two years, with process courses taught in person.
- What the route involves
- In an Associate of Applied Science in Process Technology, practice equipment operation, troubleshooting and reading piping diagrams.
- What it can lead to
- The program prepares you to apply for entry-level plant operations work, including refinery jobs.
- What to check
- A degree does not replace the refinery's own operator training after hire.
Start with a high school diploma or equivalent. You can pursue employer training or build process skills in college first; check the hiring requirements before choosing.
After entry
Career paths
This starts where the entry routes leave off: early work, growing capability, and advancement or specialization.
Learn your unit
After hire, learn the equipment layout and operating procedures while completing the employer's operator training.
Trace problems
Build enough equipment knowledge to explain why a pump or valve is behaving differently and write a useful repair request.
Specialize in control-room work
Develop toward board-operator work, coordinating controls across processing equipment. Progression depends on the plant.
Where you can work
Petroleum refineries
You work with a crew around furnaces, pumps and compressors that process crude oil. Some jobs combine rotating shifts with climbing to elevated equipment.
- Outdoors
- Shift work
- Physical demands
- Safety-sensitive
Storage and distribution terminals
The focus is receiving, blending and shipping petroleum products. Depending on the site, transfers connect tanks with pipelines, trucks or barges.
- Outdoors
- Safety-sensitive
Try it
See whether the job clicks before you commit to the path.
Draw two imaginary oil tanks linked by a pump. Give each tank a starting amount, then record what happens when 20 units move between them. Write a two-sentence handoff for the next operator. Notice whether tracking the movement and explaining it clearly holds your interest.
Stay safe: Keep this a paper exercise; do not operate pumps or handle fuel.
Sources
- O*NET OnLine. Petroleum Pump System Operators, Refinery Operators, and Gaugers. Accessed 2026-10-04.
- O*NET OnLine / U.S. Bureau of Labor Statistics. National Wages: 51-8093.00. Accessed 2026-10-04.
- U.S. Bureau of Labor Statistics. Occupational projections, 2025–35, and worker characteristics, 2025. Accessed 2026-10-04.
- Chevron. Operations Trainee — Pascagoula, Mississippi. Accessed 2026-10-04.
- Chevron. Process Operator — Pasadena, Texas. Accessed 2026-10-04.
- San Jacinto College. Process Technology. Accessed 2026-10-04.
- Marathon Petroleum Corporation. Careers — Operations and Tampa Terminal. Accessed 2026-10-04.
- U.S. Bureau of Labor Statistics. Occupational Employment and Wage Statistics — Frequently Asked Questions. Accessed 2026-10-04.
- U.S. Bureau of Labor Statistics. May 2025 Occupational Employment and Wage Statistics Profiles. Accessed 2026-10-04.