Most generic oil development these days is done and paid for by The Big Four additive companies; not by the individual oil companies (of which there are many). The AddCo's supply the DI & VII, along with the supportive data package and the oil companies (including the huge ones) supply the base oil and do the blending, canning & distribution.
Ideally each of the AddCo's would develop say, just one Group II GF-5 5W30 system and then market this as widely as possibly. This would create a market where there were multiple brands but only four basic oils available. The reality is a bit more complicated than this as the biggest oil companies will often want, and have the clout to demand, something 'a bit different' but as often as not, this is just a tweak of the original system.
All this is to say that what you get in Supertech oil, from whatever source, it's going to be basically as good as the stuff you get from the big boys.
Obviously you need to compare apples with apples here and the comparison only holds true for similar base oil groups and specifications.
