Average Base Salary
Average Hourly Rate
The average process engineer petroleum refineries salary in Arkansas, United States is $79,805 or an equivalent hourly rate of $38. This is 9% lower (-$7,931) than the average process engineer petroleum refineries salary in the United States. In addition, they earn an average bonus of $2,586. Salary estimates based on salary survey data collected directly from employers and anonymous employees in Arkansas, United States.