I've been to Suadi Arabia a few times.
Living there and enjoying the same lifestyle you enjoyed back home -or in Dubai- is unrealistic.
BUT
It really depends on where you're working/living, Americans and Westerners in the oil business have their own little country called Aramco in Eastern Saudi Arabia, it has it's own police/cinemas/bars/nightclubs/sports complexes/schools/malls/Beaches ...etc. So if you happen to work/live there, you're in luck. (That is, if you want to do the same things you're used to doing).
If you don't work for the oil business, do not despair, if you have good qualifications, I'm almost certain they'd provide you with housing in a complex filled with westerners, with it's own amenities, you'll only have to get out for grocery shopping (unless they happen to have a mall/supermarket in the complex)....
No westerner is left to live in the desert near tribes and oil pipelines
It is our colonial past and present military/economic might that ensures such privileges. If you were an Arab, it would be a different story though.
Being married solves half the problem, because as I understand , getting "laid" seems to be the major issue a lot of people complain about.
A little more detail on the nature of your job and the salary/bonuses promised would be useful.