Was headed to South Texas from Odessa, Tx. Coming down 158 toward 10, a deputy saw I had no front license plate, and doubled back around me. As we got onto 10 he hit the reds and blues. I was not speeding, was wearing a seatbelt, nothing to warrant a stop. After pulling us over, he started inquiring to the nature of our business, we explained that we were in the oil industry headed to a rig. He became agitated when he found out that we were from West Texas but had Louisiana plates. He explained that our license plate light was out. After the stop, I got out to check and saw it was on, looked at the deputy and he just shrugged and drove off.