Petroleum Engineering
Federal headcount, average salary, length of service, and pay comparison for the Petroleum Engineering occupation series (code 881), drawn directly from the OPM FedScope dataset (March 2025).
The verdict
In the Engineering and Architecture Group family, Petroleum Engineering counts 318 employees, a smaller, specialized federal occupation at 0.0% of the federal civilian workforce, and headcount declined 2.8% from the prior period; pay averages $134,293, which pays above the federal-wide $109,869.
- Employees
- 318
- Share of workforce
- 0.0%
- Avg salary
- $134,293
- Avg tenure
- 12.5 yrs
What the Numbers Say About Petroleum Engineering
Federal agencies employ 318 people in the Petroleum Engineering occupation (OPM code 881), accounting for 0.0% of the total federal civilian workforce of 2,289,472 for the March 2025 reporting window. Headcount in this occupation moved down by -2.8% versus the prior period, though at this small a headcount, year-to-year swings can reflect a handful of hires or departures rather than a broad hiring trend.
Average tenure in Petroleum Engineering runs 12.5 years, a mid-length average tenure, reflecting a mix of career employees and those who transfer or exit mid-career. Pay averages $134,293 per year, 22.2% above the $109,869 federal civilian average and up 2.0% from the prior period, a modest shift, consistent with routine locality pay and grade-level movement.
Code 8, the Engineering and Architecture Group family, is where the federal government classifies Petroleum Engineering alongside 28 related occupations. Candidates browsing USAJOBS for Petroleum Engineering postings should also review these sibling occupations, since federal hiring managers often cross-post positions across closely related codes when recruitment is difficult. All figures here come directly from OPM FedScope Employment Cubes, the same official source referenced in federal workforce planning, budget justifications, and GAO reports.
Petroleum Engineering makes up 0.2% of the 142,526 employees across the Engineering and Architecture Group family, ranking #24 of 29 occupations in that family by headcount.
Employees
318
-2.8% from prior period
Average Salary
$134,293
+2.0%
Avg Length of Service
12.5 yrs
Occupation Family
Engineering and Architecture Group
Salary Context
How Petroleum Engineering pay compares to the federal average of $109,869
Occupation Average
$134,293
Federal Average
$109,869
vs. Federal Avg
+22.2%
Where Petroleum Engineering ranks on federal pay
Its average salary of $134,293 is higher than 86% of federal occupation series (546 of 634). The highlighted bar marks where Petroleum Engineering sits in the federal pay distribution.
Average-salary distribution across all 634 federal occupation series; Petroleum Engineering ranks higher than 86%.
Related Occupations in Engineering and Architecture Group
10 other occupations in the same family
| Occupation | Employees | Avg Salary | Avg LOS |
|---|---|---|---|
| General Engineering | 34,563 | $150,930 | 14.9 yrs |
| Engineering Technical | 16,312 | $100,287 | 12.8 yrs |
| Electronics Engineering | 15,392 | $138,107 | 16 yrs |
| Mechanical Engineering | 14,519 | $122,816 | 10.9 yrs |
| Civil Engineering | 12,414 | $121,930 | 12.7 yrs |
| Aerospace Engineering | 9,928 | $143,246 | 13.6 yrs |
| Electronics Technical | 8,135 | $107,138 | 12.6 yrs |
| Electrical Engineering | 6,003 | $129,458 | 11.7 yrs |
| Computer Engineering | 4,705 | $137,388 | 13.3 yrs |
| Environmental Engineering | 3,098 | $132,421 | 16.4 yrs |
Frequently Asked Questions
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Data Source: U.S. Office of Personnel Management (OPM) FedScope Employment Cubes, March 2025. Federal civilian non-seasonal full-time and part-time employees. Data does not include military personnel, postal workers, or intelligence agency staff. Last updated: 2026-03-10.
Read our methodology - how this data is sourced, computed, and verified.
PlainGovJobs is rendered directly from OPM FedScope federal-workforce data, no number is typed in by an editor. This page draws directly on OPM FedScope occupation-level employment records. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.