I drive a little less than 30 miles each way to get to work. 12 hour shifts, decent pay.
If I were to get offered a job that worked 24s (and I am interviewing for two of them), and they paid more & had better benefits, I would definitely travel farther. One is currently 70 miles away, while the other is 75 miles away.
One thing to keep in mind, depending on how tied down you were to your current residence, moving might not be a poor choice. If you relocate, it can make your commute better. But remember, you want to relocate for a long term CAREER position, not just a job.
for a 48 or 72 hour shift, I might even drive up to 200 miles, if they pay was right, since the commute would be paid for by the OT, and you are traveling 400 miles round trip, instead of 200+ miles round trip for 4 12 hour days.