Right now, at $60- 70 oil, everyone is busy and most people are resource constrained, so for employee retention, cash is king: our drilling contractor is giving their drill crews a 15% bonus every quarter just to stay with them! I'm constantly being called by headhunters looing to fill empty desks, and the job requirements are dropping- for example you can be a Senior Drilling Engineer with 5 years experience (I don't think anyone with less than 10 years has seen enough to be an SDE) and a Drilling Supervisor at the wellsite with just 5 years in the oil patch (which I don't think is anywhere near enough time, and is potentially dangerous).
Also the oil industry has been panicing for a few years about "The big crew change"- in the next 10 years, about 50% of the guys in the industry are going to retire, and the industry need to capture their knowledges as there aren't many people around now with 10 -15 years experience to take their place.... so those that have survived the past few layoff cycles (like me) are a little twisted and looking forward to the big bucks!