My one question to anyone out there that may know

My one question to anyone out there that may know is how did the McComas well that was making 18bbls a day at the end of October, make 0bbls for the whole month of November? This make no sense to me. Am I missing something? This was a new well. The first one we ever drilled and brought on. I know we had to install a new downhole pump but that does not take all month.