My university hosted a career fair, and Valero had a booth. I went by and spoke to the representative there. He was very friendly and generated interest in his company. He answered all of my questions concisely and genuinely. I left them my resume. A few days later I was contacted about an interview that would be performed on campus. The man I'd met at the booth was also conducting the interviews. The interview process was relaxed and informal. I didn't feel that it was a grilling like some interviews can be, but rather an initial evaluation of whether or not I would be a fit for the company and vice verse. I did not receive an offer, but I consider it a valuable and positive experience.

Interview was around 45 minutes and it was all behavioral questions. No technical questions were asked. Recruiter and interviewer were both very nice. Decision was sent around 2 weeks after interview.