Ubean

The Ubeans were a civilization, a species native to the in the galaxy's Delta Quadrant. The Ubean oat milk originated in the Ubean culture. 

History
At some time prior to the year 2371, the Talaxian partners in trade Neelix and Wixiban had a run-in with the Ubeans, and Wixiban was forced to serve a prison term. Wixiban reminded Neelix of that when they met again on the Nekrit Supply Depot in 2373.