NAICS industry sectorNAICS 21Rank #21Updated May 2026
Mining, Quarrying, Oil & Gas
H-1B sponsorship activity by employers classified under NAICS 2-digit sector 21. 6,981 filings from 432 distinct sponsoring employers.
Filings
6,981
Rank #21
Employers
432
distinct sponsors
Filings / employer
16
concentration hint
Ad slot · sector-top
Filings by fiscal year
H-1B filing volume in the Mining, Quarrying, Oil & Gas sector year over year.
Top sponsoring employers
Largest H-1B sponsors in the Mining, Quarrying, Oil & Gas sector.
Schlumberger Technology Co…
429
Chevron Corporation
110
National Oilwell Varco, L.P.
98
Occidental Petroleum Corpo…
94
BP America Inc.
93
Rio Tinto Services Inc.
90
Nevada Gold Mines LLC
88
Kennecott Utah Copper LLC
86
EOG Resources, Inc.
84
Venture Global LNG, Inc.
68
Top occupations sponsored
SOC codes filed most by employers in this sector.
| # | SOC | Title | Filings |
|---|---|---|---|
| 1 | 15-1252 | Software Developers | 1,172 |
| 2 | 15-2051 | Data Scientists | 323 |
| 3 | 17-2171 | Petroleum Engineers | 319 |
| 4 | 19-2042 | Geoscientists, Except Hydrologists and Geographers | 317 |
| 5 | 17-2051 | Civil Engineers | 315 |
| 6 | 17-2141 | Mechanical Engineers | 306 |
| 7 | 17-2112 | Industrial Engineers | 299 |
| 8 | 15-1299 | Computer Occupations, All Other | 247 |
| 9 | 17-2131 | Materials Engineers | 168 |
| 10 | 17-2071 | Electrical Engineers | 132 |
Software Developers
1,172
Data Scientists
323
Petroleum Engineers
319
Geoscientists, Except Hydr…
317
Civil Engineers
315
Mechanical Engineers
306
Industrial Engineers
299
Computer Occupations, All …
247
Materials Engineers
168
Electrical Engineers
132
Ad slot · sector-mid
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