The application process is a 2 round process. In the first interview there are 2 people, one from HR and one technical engineer. During this first interview they ask some competency based questions and also some questions like why Exxon, what motivates you. Besides this i got also a technical question concerning the site. In the second interview, you'll meet your supervisor.
I applied through college or university. The process took 1 day. I interviewed at ExxonMobil (Singapur) in Nov 2012
Interview
Phone interview. Called to ask more about myself, interest in the company and was tested for technical knowledge in chemical engineering. Generally pleasant with 2 interviewers taking turns to ask questions. Was allowed to ask more about the job scope and explained the requirments. Went through a drug test right before internship starts
Interview questions [1]
Question 1
How do you explain to a 5 year old how a distillation tower works.