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Oilfield Services
Halliburton, SLB, Baker Hughes
Service Unit Operators, Oil and Gas
Service unit operators move heavy truck-mounted equipment to oil and gas wells, set up pressure-control gear, and run pumps and rig controls to keep a well flowing or safely shut in. The work is defined by constant attention to gauges, equipment, and site conditions because a mistake can damage the well or create a safety problem. It pays better than many non-degree jobs, but the tradeoff is flat growth and physically demanding work that rises and falls with drilling activity.
Also known as Well Service OperatorOilfield Service OperatorService Rig OperatorWorkover OperatorOilfield Equipment Operator
Median Salary
$57,980
Mean $61,530
U.S. Workforce
~44K
4.1K openings per year
10-Year Growth
+0.4%
45.2K to 45.4K
Entry Education
No formal educational credential
+ Less than 5 years experience
What This Role Looks Like in Practice
Service Unit Operators, Oil and Gas sits in the Trades category. In practical terms, this role combines day-to-day execution, cross-team coordination, and consistent decision-making under real business constraints.
U.S. employment is currently about ~44K workers, with a median annual pay of $57,980 and roughly 4.1K openings each year. Based on BLS projections, total employment is expected to grow from 45.2 K in 2024 to 45.4K in 2034.
Most hiring paths start with No formal educational credential, and employers typically expect less than 5 years of related experience. Many careers in this track begin around Oilfield Helper / Roustabout and can progress toward Lead Operator / Field Supervisor. High-value skills usually include Operations Monitoring, Operation and Control, and Monitoring, paired with soft skills such as Critical Thinking, Active Listening, and Judgment and Decision Making.
Core Responsibilities
- Seal wells that are no longer being used.
- Drive truck-mounted service units to well sites and get them ready to work.
- Install pressure-control equipment on the wellhead before work starts.
- Pump fluids through the well to clear out sand and other blockages.
Keep exploring: more Trades careers or browse all job titles.
A Day in the Life
01 Seal wells that are no longer being used.
02 Drive truck-mounted service units to well sites and get them ready to work.
03 Install pressure-control equipment on the wellhead before work starts.
04 Pump fluids through the well to clear out sand and other blockages.
05 Use rig controls to raise derricks or level the equipment at the site.
06 Check tools and equipment for safety problems, and coordinate with the crew on pipe sizes and well conditions.
Industries That Hire
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Drilling Contractors
Nabors Industries, Patterson-UTI, Helmerich & Payne
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Independent Exploration & Production
ConocoPhillips, EOG Resources, Devon Energy
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Oil & Gas Equipment Manufacturing
NOV, Weatherford, ChampionX
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Midstream & Pipeline Operations
Kinder Morgan, Energy Transfer, Williams
Pros and Cons
Advantages
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You can get into the field without a college degree, and BLS says no formal educational credential is the typical entry point.
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Pay is solid for a hands-on trade, with mean annual pay at $61,530 and median pay at $57,980.
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There are still about 4.1K annual openings, so employers keep hiring even though the occupation is small.
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The work is varied and practical: one day you may move equipment to a site, and the next you may pump a well clean or install pressure-control gear.
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The job builds transferable skills in machine control, inspection, and crew coordination that can lead to lead-operator or supervisor work.
Challenges
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Growth is basically flat, with employment projected to rise only 0.4% over the decade, so there is not much expansion in the occupation.
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The work is physically demanding and safety-sensitive, because it involves heavy trucks, high-pressure equipment, and moving parts at active well sites.
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Schedules can be irregular and tied to drilling or maintenance needs, which often means early starts, remote locations, and weather delays.
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Career advancement can be limited unless you move into supervision or a different oilfield specialty, so the role can have a narrow ceiling over time.
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Demand depends heavily on oil and gas spending, so layoffs and overtime can swing with commodity prices and company budgets.
Career Progression
Oilfield Helper / Roustabout
0-2 years
$35K-$46K
New workers learn site safety, basic equipment handling, cleanup, and how to support the crew around wells and service units.
Service Unit Operator Trainee
1-3 years
$47K-$57K
Workers start handling truck-mounted units and simple well service jobs under close supervision while building pressure-control and inspection skills.
Service Unit Operator, Oil and Gas THIS ROLE
3-7 years
$54K-$68K
Operators run the service unit, manage pumping and rig controls, install wellhead equipment, and keep the job site safe and moving.
Lead Operator / Field Supervisor
7-12 years
$69K-$88K
Experienced workers oversee multiple jobs, coordinate crews, troubleshoot tougher wells, and handle more of the planning and safety decisions.
Education Paths
No formal educational credential
This is the BLS typical entry point, and the O*NET distribution provided does not assign a percentage to this route.
Commercial Driver's License (CDL) plus employer training
A CDL can help because the job involves driving truck-mounted units, and most of the real training happens on the job.
Associate's degree in petroleum technology or oilfield operations
The O*NET distribution provided lists 0% for associate's degrees, so this is not shown as a common route here.
Bachelor's degree in petroleum engineering or industrial technology
The O*NET distribution provided lists 0% for bachelor's degrees, which suggests a four-year degree is not the usual entry path for this occupation.
Key Skills
Technical
Operations Monitoring 75%
Operation and Control 69%
Monitoring 66%
Wellhead, Pressure-Control & Valve Systems 64%
Heavy Truck Operation & Vehicle Checks 62%
Troubleshooting 60%
Hydraulic Pumps & Circulation Systems 58%
Safety Inspection Procedures & PPE 56%
Soft Skills
Critical ThinkingActive ListeningJudgment and Decision MakingComplex Problem SolvingTeamworkSituational Awareness Job Outlook and Trends
+0.4%
Projected growth (2024-2034)
4.1K
Annual job openings
Employment is projected to rise from 45.2K to 45.4 K over the next decade, representing 0.4% growth. Around 4.1 K openings per year include both newly created roles and replacement hiring from turnover.
Remote availability is currently Rare. Demand remains strongest where employers need practical domain knowledge plus modern workflow and data skills.