In the case of Alaska, the oil is literally on land owned by the State of Alaska (as in, the titleholder of the land is the state itself), and the rights to oil extraction is leased by the state to oil companies.

By contrast, data centers are generally going to be on land owned by the operator, and corporate offices are either owned by the company or leased to the company by some commercial real estate operator you've probably never heard of. In neither sense are they on land owned by any local, state, or federal government.