Pros
I like how many people you get to work with. You get to work with people from all walks of life. That provides a situation where you can learn and grow in a lot of different ways other employment opportunities probably couldn't offer. I also liked how you could get out of the office, go out in the field and get dirty. Sleeping in your car can be enjoyable if you have movies on your phone and good music to listen to.
Cons
Because it is oil field service...the people that work and stay at Halliburton are rough around the edges. I found people there whose attitudes would not be tolerated anywhere else. They would hide their unprofessional behind the title of oilfield. Work life balance. In the oil field, especially in the cementing PSL, there is no such thing. Seriously, I cannot count how many times I get home and have to pull out the computer and work until 9. I am not even a TP! I watch the TP's and they sometimes average 2 hrs of sleep for 5 nights in a row. I hate that so bad. I have a wife and desire to do things not related to work. I am currently looking for other employment because of that. But like I said, for people that don't really have much else to do and like the rough life, this is the perfect job for them. You will definitely feel like you have responsibility and that you are needed, but maybe not respected.