It was a standard behavioral interview. The interviewer had a list of 4 or so "Tell me about a time when..." or "Why Shell?" type questions. There would be several follow up questions to clarify and expand on my answers.
The interviewer also seemed very proud of the various extra activities available at shell such as community service or Shell sponsored races.
Interview questions [1]
Question 1
Talk about a time when you had to listen to someone else.