Two UFOs in the form of rings, seen in Texas

Date of sighting: 2016-06-18
Location: Houston, TX, US
Mufon report 77162
Long Description of Sighting Report
Saturday night a friend of mine recorded this video. They were out bar hopping so please excuse the language in the video. They recorded this and tried following it but it disappeared. We think it’s a UFO but a few friends think it could be a drone. Just thought I’d share!
Video link