Prior to the oil boom, mine would be done in less than a month, sometimes about 2 weeks. Then around 2014 or so, it took over 6 months. At that time you could only submit your renewal 60 days prior to expiration & you aren't allowed to contact them to find out whats going on. This last time it took about a month again, but of course the oil boom has stopped for a couple years now. They changed how early you can submit your renewal paperwork, 6 months now IIRC. They also need to give us some way of checking on our permit as it's going through. It's one of the reasons I always send my paperwork registered mail, so they can't say they never got it.