I applied through university. The process took 1 day. I interviewed at Hilcorp Energy (Austin, TX) in Feb 2015
Interview
The process was very laid back and took about 30 minutes. Two engineers interviewed me, and they basically went through my resume and asked about things that caught their eye, as well as my SAT scores. The style was conversational and I didn't really feel pressured at all. At the end they allowed me to ask any questions I had.
Interview questions [1]
Question 1
How will (insert strength here) help you as an engineer?