Ixion

The Ixions are a sapient, hostile alien species which consider oil to be the most valuable substance in the universe. They will often invade planets for their oil resources. According to Alpha, the Ixions aren't particularly intelligent: they will often repeat the same strategies used before even if they weren't successful the first time, simply because they prefer routine over creativity. The membranes under their arms allow them to glide over long distances.