Pros
Travel, Pay, Benefits If you land a job in the right department, travel can be amazing. You don't have to worry about per diems like at other companies so it takes the stress of having to look around for hotels that won't freak out your management or try to save to get the difference back. You can actually spend your time in a safe hotel, in a safe area and focus on working and eating normal priced food. ExxonMobil has also become more competitive on the pay scale increasing their new hire salary significantly in the past couple of years.
Cons
Hours, Office Politics With high pay comes hard work. No complaints about that because everyone is expected to work hard in return for h high salary. Some departments, however, are more flexible than others when it comes to working from home. After a 40-50 hour work week on a Thursday or returning from travel, it would be nice to just relax and work from home. In the departments that allow this, you see lots more productivity, in the ones that do not, you see people wasting extra hours trying to get something done before they go home. You can't get away from office politics anywhere you go so just match your personality with your manager's and you will get ahead - regardless of your performance or qualifications.