I saw three elongated oval lights in my peripheral vision. I quickly pulled off the dark highway and turned off my headlights. I watched one hover over the mountain range and not move. The one to the east went up then down behind the desert brush. The one to the west kept flying up and down--back and forth--like it was playing. This went on for a good 10 minutes then it finally went down into the brush and I could no longer see it. The one hovering above the mountain range disappeared behind the mountain.I got back on the road went two miles, turned right and looked to the west and there was another one hovering over a house.