Oval craft stationary above treeline off to NW

Hovered above treeline about a sixteenth of a mile from my house. Stayed stationary for about a minute and a half. Neighbor on other side of street saw craft while out playing basketball along with family member out on porch. 1 oval shaped craft was seen and displayed pulsing blue and white lights upon exit to the west, not quickly leaving but about the average speed of travel as a commercial 757. Asked neighbor if they were able to film it and they didn't. By the time I grabbed my phone from the house and rushed back outside, craft was out of boundaries that my phone zoom can handle but did see it leaving. Opting not to leave identifiable information in information box because of my career in the defense sector.