To be a petroleum engineer you must obtain a bachelors degree. This usually includes taking basic science classes such as Chemistry, Calculus, differential equations and physics.
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Salary any where from 170,000 to 260,00 dollars
This career does not have ranks, but the longer you have worked in the job the more your annual salary increases.
What I find interesting about this career is the science behind it. This job is one of the worlds most important each nation has to have oil or gas to produce money because of how much oil and gas trade plays into our culture.