<p>I have a friend who majored in chemical engineering and minored in geology, would he be able to work as a petroleum engineer? He is doing a intern in Chevron currently in California. </p>
<p>Didn’t you just answer your own question?</p>
<p>Yup he did ^</p>
<p>I’m guessing Chevron has a few other engineering positions besides petroleum.</p>
<p>But yes, your friend can work as a petroleum engineer.</p>