As of Sept 2000, Aramco had 2 DHC-6's. They didn't fly much since company's mission emphsis changed from exploration to production.
Keep in mind to get on with these guys (as a company employee), you have to have a college degree and 3000 hrs. Over the past couple of years, they have hired a number of 'contractors."
If you're still interested give them a call - whats to lose. (Of course, you might wait until after the fireworks.)