I agree that's probably a factor. But I think many conservatives in these cases also prefer a nonprofit or dividend-type model to a more libertarian-style priva

I agree that's probably a factor. But I think many conservatives in these cases also prefer a nonprofit or dividend-type model to a more libertarian-style private-ownership model. The Tennessee-valley opposition to privatizing the TVA is an example. And in Alaska, the choice isn't only between paying out a dividend and letting the government keep the money. Alaska could simply abolish the severance tax entirely, and just let private mineral-rights owners reap the full profits. But that's not popular at all, even among people who identify as conservative. My suspicion, besides people voting their interests (probably a significant factor) is that unlike in the case where someone creates a product through their own labor, in the case of oil extraction, there is doubt that private land or rights owners really "deserve" the full profits from exploiting a resource they didn't create, but for various historical reasons happen to now own. Rather it seems to be more popular to allow them a profit on their extraction effort, but recapture some of the underlying value of the mineral asset for the people in general. (Texas also has a severance tax based on this kind of rationale, in its case used to fund government in partial lieu of an income tax.)