star like distance and appearance of many lights moving in formation

I was about 16 or 17, with my good friend at the time,We are from San Angelo, Tex. we were living in his Fathers apartment at this fairly young resort community (his father sold property there) We had gone to a couple of friends house that was near the Golf course, and club at Lago Vista. These kids were a little younger than us.
We played guitar a little and then went outside, for some reason one of us I dont remember which was looking at the sky. But it was noticed that numerous 10 or 16 stars, (they were bright as stars, and seemed to be at same distance as stars)They were moving in formation which we could see with our naked eyes.
Of course we were all 4 kids, however there parents came outside and they confirmed seeing the same thing.
If my perspective is right we were looking very high at the Southwest. We watched these for some time, and then they vanished. I realize if our perceptions were right about distance those lights were covering some major ground.
I dont talk to many people about it. However I guess now it was late 80's I was back home,  and ran into that friend, after we visited for awhile, he said do you remember what we saw in Lago Vista.
I realize not nearly as drastic as some sightings but this is truth of what we saw. What we saw I cant say!
Date is approximate.  PD