The process took 4 weeks. I interviewed at ConocoPhillips in Sep 2008
Interview
Phone interview was first, no big deal there. The first of three 1:1 interviews was with the director acounting. The second 1:1 was with a member of the marketing group (she said this was the part of the interview that made sure I could work in a team). The third 1:1 was with my supervisor who asked me "Why should I hire you". Took about two weeks to find out that I had gotten the internship.
I applied through college or university. The process took 5 weeks. I interviewed at ConocoPhillips (Houston, TX) in Oct 2013
Interview
Got in contact with them through the career website, and had to fill out an application online. In the interview there were lots of behavioral and situational questions.
Interview questions [1]
Question 1
Tell me about a time you had to bring a group of people together to accomplish a goal.