Pros
It’s a large company with limitless opportunity to travel and explore. Halliburton is well recognized and respected, and contains some truly unique and friendly talent. Put simply, I’ve heard among customers, competitors and reviews, that it is known as the company that “gets it done”.
Cons
Indeed, it's a large company and movement (lateral or otherwise) is difficult as you are limited on direct exposure. Its good-ol’-boy roots seem to remain (both positively and negatively). The politics and public opinion can be alarming. I saw an enormous amount of talent go to waste among my fellow interns and new hires. The company didn't seem to recruit new talent for some time. It seems the older workforce (on average) resents the younger and once the hiring surge started, the Culture didn’t know how to engage (or train) them. Upper management behavior is peculiar which seems to indicate a lack of information exchange amongst even the C-levels. The structure can change at the drop of a hat. But if you land a great mentor (which they won’t assign) you’re very lucky and stand to gain a lot.