Career Escape
Moving from truck driver to sailor or marine oiler, by the occupational data
Both occupations are described by the same O*NET 30.3 rating system, which makes them directly comparable: the same requirements, rated for each. What follows is that comparison for truck drivers and Sailors and Marine Oilers, not an opinion about whether the move is a good idea.
Can a truck driver become a sailor or marine oiler?
The overlap here is narrower than the two job titles suggest: 50% of what O*NET 30.3 rates as important to either occupation is important to both. The requirements that carry across include Repairing and Maintaining Mechanical Equipment, Operating Vehicles, Mechanized Devices, or Equipment, Transportation. Both sit at O*NET Job Zone 2, so the typical education, training and experience expected is the band you are already in. BLS does not publish a typical entry-education category for one of these occupations. What would be new concentrates in work activities: Controlling Machines and Processes, Assisting and Caring for Others, Guiding, Directing, and Motivating Subordinates. BLS puts the 2025 national median wage for sailor or marine oilers at $51,520 against $58,640 for truck drivers, a difference of 12% downward at the occupational level rather than for any individual move. BLS projects employment in the destination occupation to grow 3.2% between 2025 and 2035, with about 3,600 openings a year on average. O*NET describes the destination as follows: Stand watch to look for obstructions in path of vessel, measure water depth, turn wheel on bridge, or use emergency equipment as directed by captain, mate, or pilot. This compares two occupations, not two people, and says nothing about whether any individual would be hired.
- Weighted overlap
- 50% of the requirements important to either occupation are important to both, with 1 of those shared requirements classed as distinctive rather than near-universal.
- Preparation level
- O*NET Job Zone 2, against Job Zone 2 for truck drivers. Not published.
- Typical entry education (BLS)
- Not published by BLS for this occupation.
- Prior experience typically expected
- Not published by BLS for this occupation.
- Where the overlap is strongest
- Knowledge, with 1 distinctive requirements important to both. Requirements that carry over include Repairing and Maintaining Mechanical Equipment, Operating Vehicles, Mechanized Devices, or Equipment, Transportation.
- Independent corroboration
- O*NET does not list this as directly related to the source occupation; it appears one step out, related to a related occupation. The overlap measure and the relatedness file disagree here, and both are shown rather than one being quietly dropped.
Source and method
O*NET 30.3 Database, with BLS Employment Projections Table 5.4. Verified 2026-09-02. Importance ratings, Job Zones and occupational titles are read from O*NET. Typical entry education, prior experience and on-the-job training are read from BLS. The weighted overlap percentage, the distinctive-requirement counts, and the shared and new requirement lists are computed by RoleSprint from those inputs using the method published at /career-change/methodology.
Career transition data
Truck Driver to Sailors and Marine Oilers
- Work activities overlapderived
- 49%
- Knowledge overlapderived
- 50%
- Transferable skills overlapderived
- 51%
- Essential skills overlapderived
- 57%
- Job Zone
- 2 to 2 (no change)
- Median annual wage, 2025
- $58,640 to $51,520
- Wage differencederived
- −$7,120 (−12%)
- Projected employment change, 2025–35
- +3.2%
- Annual openings, 2025–35 average
- 3,600
Largest transferable capability: Inspecting Equipment, Structures, or Materials
Largest new demand: Controlling Machines and Processes
Source. Job Zone and requirement ratings: O*NET 30.3. Wage, employment projections, openings and entry education: BLS Employment Projections Table 1.2, projections 2025–35, wage year 2025. RoleSprint-derived. Overlap percentages and the wage difference are calculated by RoleSprint from those published values. Limitation. These are national occupational statistics for two occupations. The wage figure is not a salary you would be offered, employment growth is not job security, and overlap is not a likelihood of being hired. Fields BLS does not publish for an occupation are omitted rather than estimated.
What carries over
Requirements O*NET rates as important for both truck drivers and sailor or marine oilers, by domain. Most distinctive first, so the top of each list is the part that is actually worth putting on a resume.
Work activities
14 of 27 work activities important to either occupation are important to both.
- Repairing and Maintaining Mechanical Equipment3.3 for truck drivers, 4.2 here
- Operating Vehicles, Mechanized Devices, or Equipment4.6 for truck drivers, 3.9 here
- Handling and Moving Objects3.1 for truck drivers, 4.2 here
- Performing General Physical Activities3.5 for truck drivers, 4.0 here
- Estimating the Quantifiable Characteristics of Products, Events, or Information3.1 for truck drivers, 4.0 here
Knowledge
2 of 6 knowledge areas important to either occupation are important to both.
- Transportation4.0 for truck drivers, 3.1 here
- Public Safety and Security3.9 for truck drivers, 3.2 here
Transferable skills
4 of 9 transferable skills important to either occupation are important to both.
- Troubleshooting3.0 for truck drivers, 3.1 here
- Operation and Control3.8 for truck drivers, 3.6 here
- Operations Monitoring3.8 for truck drivers, 3.9 here
- Time Management3.0 for truck drivers, 3.0 here
Essential skills
3 of 5 essential skills important to either occupation are important to both.
- Monitoring3.1 for truck drivers, 3.3 here
- Critical Thinking3.0 for truck drivers, 3.1 here
- Speaking3.0 for truck drivers, 3.0 here
Numbers are O*NET Importance, on a 1 to 5 scale. A requirement counts as important at 3.0 and above, which is the threshold the whole comparison uses.
What would be new
Requirements important for sailor or marine oilers and not important for truck drivers. This is the part you would have to be able to evidence, and it is usually the real obstacle rather than the job title.
Work activities
6 work activities rated important here and not for truck drivers.
- Controlling Machines and Processes4.5 here, 3.0 for truck drivers
- Assisting and Caring for Others3.5 here, 2.2 for truck drivers
- Guiding, Directing, and Motivating Subordinates3.6 here, 2.0 for truck drivers
- Resolving Conflicts and Negotiating with Others3.0 here, 2.5 for truck drivers
- Coaching and Developing Others3.1 here, 2.2 for truck drivers
Knowledge
1 knowledge areas rated important here and not for truck drivers.
- Mechanical3.0 here, 2.8 for truck drivers
Transferable skills
5 transferable skills rated important here and not for truck drivers.
- Repairing3.1 here, 2.9 for truck drivers
- Quality Control Analysis3.0 here, 2.6 for truck drivers
- Complex Problem Solving3.0 here, 2.6 for truck drivers
- Coordination3.0 here, 2.8 for truck drivers
- Judgment and Decision Making3.0 here, 2.9 for truck drivers
Essential skills
1 essential skills rated important here and not for truck drivers.
- Active Listening3.1 here, 2.9 for truck drivers
Practical caveats for this move
Specific to this pair, and worth reading before treating any of the above as a plan.
- Sailors and Marine Oilers sits at the same Job Zone as truck drivers, so the typical preparation band does not change. That removes one obstacle and none of the others.
- BLS records no prior experience in a related occupation as typical for this role, which makes the requirement lists above the more useful guide to what a posting will ask for.
- O*NET does not list this destination as directly related to your current occupation. It reached this map through the requirement overlap, one step out. That is a weaker corroboration than a directly related occupation, and it is shown rather than hidden.
- None of this accounts for licensing, geography, pay, hiring volume, or whether you would want the work. Occupational data describes the job. It does not describe the market for it, and it does not describe you.
How this move compares with the alternatives
This page is one move. The Opportunity Atlas puts every destination mapped from truck drivers side by side on skills overlap, day-to-day work, wage, projected growth, openings and the size of the training step.
It does not rank them, because the dimensions genuinely disagree: measured across every transition published here, how much your skills carry over and how much your knowledge carries over are close to unrelated. You choose which one matters and it orders by that.
Compare the alternatives in the Opportunity AtlasThe destination occupation, as O*NET describes it
Stand watch to look for obstructions in path of vessel, measure water depth, turn wheel on bridge, or use emergency equipment as directed by captain, mate, or pilot. Break out, rig, overhaul, and store cargo-handling gear, stationary rigging, and running gear. Perform a variety of maintenance tasks to preserve the painted surface of the ship and to maintain line and ship equipment. Must hold government-issued certification and tankerman certification when working aboard liquid-carrying vessels. Includes able seamen and ordinary seamen.
O*NET-SOC 53-5011.00. Full title: Sailors and Marine Oilers. Where this page uses the shorter phrase “sailor or marine oiler”, that is a common name for readability, not a separate occupational classification.
This page includes information from the O*NET 30.3 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET® is a trademark of USDOL/ETA. RoleSprint has modified all or some of this information. USDOL/ETA has not approved, endorsed, or tested these modifications. Analysis generated 2026-09-02 from the O*NET 30.3 Database. Entry education, work experience, and on-the-job training are reproduced from BLS Employment Projections Table 5.4, Education and training assignments by detailed occupation, 2024, published by the U.S. Bureau of Labor Statistics.
What to do next
Occupational data compares two jobs. It cannot tell you whether one specific employer would consider you, and this is the point where most people stop reading data and start applying blind.