Valero is looking for a process engineer for their Memphis and also for their Three rivers Texas refinery.
https://valero.taleo.net/careersection/2/joblist.ftl
(shhhhhh, it's a secret, but they actually TEACH young engineers most of what they need to know).
Tesoro is also very aggressive when going after young engineers.
They actually have people who's job it is to RECRUIT young engineers from schools.
Students and Recent Graduates | TSOCORP