This is simply state ownership of what's seen as a strategic business. It's an abandonment of market dogmatism, but not a step towards any of the many ideologies or positions where markets have a smaller role.
Usually I suppose, when I think state capitalism I would think something like the Soviet Union, where this happens across many businesses with the state owning everything, but I suppose it is state capitalism, or a state capitalist element in a market system. One might even call it a mixed economy, or a sort of hacked-apart Swedish model without labour unions and state ownership of only certain strategic industries, rather than let's say, state ownership of hospitals.