Once you apply you'll get a call from someone from HR. You will meet with a Rig Superintendent who will feel you out. He didn't ask me much just asked why I want to work on a rig and some questions about my past. After you'll have to go though a drug screening which includes urine and hair. They will find out of you have used drugs within the last year. If all checks out you will then go though a physical and a fitness exam. The physical is normal physical as you would get with your normal doctor. After you will go though a fitness test. Which includes push-ups (35 for my age ) sit ups (27 for my age) and they will check your resting heart rate then have you push and pull 70 lbs a few times across carpet and check your heart rate again. Also will do the same but with 60lbs up and down stairs.