H1B Visa Data for Petroleum Refineries: Top Employers, Top Jobs and Employees Trends

We now have Quarter 4 H1B visa FY 2023 data and Quarter 4 PERM visa FY 2023 data and Quarter 4 H2A visa FY 2023 data.
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Petroleum Refineries (NAICS code 324110) has an average growth rate of -0.59% as an H1B industry with 1,849 employees hired as of 2025

Top Petroleum Refineries Employers

Company	Employees	Average Wage
Hollyfrontier Corporation	12	$118,090
Petrochina International (america), Inc.	11	$60,611
Koch Supply & Trading, Lp	8	$92,724
Nustar Gp, Llc	8	$76,620
Flint Hills Resources Corpus Christi, Llc	7	$106,214
Flint Hills Resources Pine Bend, Llc	7	$105,756
Indorama Ventures Olefins, Llc	7	$83,652
Koch Minerals & Trading, Llc	7	$105,055
Sprague Resources Gp Llc	7	$85,886
Bioenergy Development Group Llc	6	$87,516

Top Petroleum Refineries Jobs

Job Title	Number of Jobs	Average Wage
Computer Systems Analysts	225	$93,256
Chemical Engineers	177	$102,072
Software Developers, Applications	156	$104,463
Petroleum Engineers	100	$112,683
Mechanical Engineers	83	$106,778
Geoscientists, Except Hydrologists And Geographers	60	$112,551
Architectural And Engineering Managers	48	$153,354
Electrical Engineers	43	$103,223
Geological And Petroleum Technicians	36	$65,786
Operations Research Analysts	28	$100,559

Employees Over Time vs Average Salary Over Time

The Petroleum Refineries industry has been in the H1B Visa program since 2011 where 105 employees were hired. They peaked in 2022 with 127 employees, and have since been on a decline with the most recent number of employees being 27 in 2025.

The Petroleum Refineries industry has been in the H1B Visa program since 2011 where the average salary was $79,757. The industry peaked in 2023 with an average salary of $129,905, and has since been on a decline with the most recent average salary being $116,704 in 2025.