I was driving home from work on Hwy 281 South about 4 miles from Stephenville. I first saw the lights ahead of me on the right hand side of the road. From a distance I thought it was a rodeo arena lights - but I knew there wasn't an arena there. As I got closer I realized it was just lights - in a large circle and they were blinking. There was a car pulled over on the side of the road looking at it as well. I did not stop my car but as I drove directly by it, the lights were diminishing. After I passed by, I looked back in my rear view mirror and I could not see the lights. I thought it was amazing!