Pros
SAFE Stable Peaceful Everything is planned for a long term, although plans can change, there is no rush, everything must be safe and done by "the book" Clear Policies Great management of technology, although some novices may think that the company is old fashioned, but they do know how to invest in technology and give to the users what they "need", not what they want because of their "status quo" Al technology must be approved, IT folks hate this, but they don't understand how IT governance must be lead in global environment without killing the budget, so XOM is right in taking things slowly but reliable and feasible the new campus is outstanding, not yet ready, and work at home is a great choice.
Cons
Is not easy to grow, but the salary is good enough They won't allow you to be individualist, and implement "cool" (but not safe) technology It really sucks to have a bad boss, they will ignore you, but you still stable because their HR systems work Is hard to compete in a Global environment Don't expect huge salaries, but quality life along time Get used to follow the sun, and work with people around the world.