Chevron Phillips Chemical Lab Analyst interview questions

It was an interview with 2 HR reps, a several lab supervisors, and I believe an executive. They all asked general past experience questions. I was not expecting a panel interview and was very nervous. I feel they could've let me know what to expect, but I guess fair is "just a place we take the kids in the fall." They were all nice, but I felt like none of them wanted to be there.