It does look like one of Rutan’s! It looks somewhat like the Voyager that was first to fly around the world without stopping or refueling.
Between this article and what wiki provides, I figure it gets around 28 gallons per mile. About 18 refueling stops to make it around the world. Fill her up!
It is from Scaled Composites.
This is the outgrowth of Rutan’s White Knight (X-Prize) and White Knight Two (Virgin Galactic.
The concept goes back to the original X planes - Bell X-1, the X-2 up through the X-15, all carried to altitude by our then current largest bomber.