2 round balls of fire hovering over Saginaw Bay

My dad and I go duck hunting on Saginaw Bay every year.  We leave our trailers in a state camp site a few miles from the Bay.  
One evening around late October 1994 we saw what was by definition was a UFO.
The campsite was deserted but for my dad and me and a friend who had gone to sleep in his trailer.  The moon was bright and we were standing outside listening to the geese and ducks being loud and obnoxious.   I noticed a white light about 30 degrees off the horizon.   I told my dad it might be a planet, but it stayed there, and as our eyes focused it flickered like a flame.   He went to get binoculars and I went to the observation stand which is about 20 feet higher.   Thru the binos it looked like a white flame flickering over open water, you could clearly make out the shoreline with the moon light.   We watched it for a few minutes; my dad speculated it was a gas well, then maybe a reflection of one.  I told him there were none there.
He walked down and woke up his fiend in his trailer.  Thru the binos I could see a white mass that appeared to flicker like a camp fire from a distance.   Dad’s friend joined us on the observation tower and was clueless as to what it was, then out of nowhere a smaller light appeared next to it, they then started moving back and forth along the water line.  My dad said they might be helicopters looking for someone.  But helicopters don’t make pin point turns like that and have spot lights which look like flames.  After only a minute or two of that, they started heading out over the bay, we lost sight as they took a high speed route straight away from us.
Sometimes now we mention it and pause and some says, what do you think that was, but no one knows more than the other.  It was an unidentified flying object, that’s all I know.
Source indicates that date of event is approximate.  PD