Sooner is a common pollster for Oklahoma and has a B- rating on 538 @Zaybay. Instead of just tossing out polls because you haven't heard of them, do the bare minimum and and at least cross-reference 538's ratings and then decide to throw them when you don't like the results.
I remember in some previous election/year (not sure which one) I saw SoonerPoll and it seemed junky and I was inclined to throw it out/ignore it. But then it turned out to be pretty accurate.
I think this might have been for a Dem primary.
So I would say this is not as junky as all those Florida junk pollsters, for example.