Pros
The benefits are very good compared to many other companies, starting with 15 paid vacation days, maternity/paternity leave, 401k, medical, etc. You have to take on responsibility early and are able to perform different roles/jobs, about every 2 years.
Cons
Long hours and no personal life, especially when working in the field. Below average compaensation compared to the major oil companies. Company pension plan is no longer offered to new hires. No matter how good your are and what you have done for the company in the past. If you are currently in a job that does not generate revenue, such as shared services or training, they will get rid of you even with the best annual review, just because the directive from the top is to 'cut 10 or 20%' of the workforce. On top of that they will try everything to screw you out of your hard earned perks such as stock options, severance pay, retiree medical, just so they can save a few bucks.