The UK is, at least making a start www.theguardian.com/business/202...

UK government to buy electricity system operator from National Grid for £630m

New operator, Neso, will also oversee Great Britain’s gas system as part of ‘clean energy superpower’ mission

I suspect nationalizing distribution and nationalizing extraction/refining are super different, no? The gov't could make money through the former whereas they'd (hopefully) wind down, take the superficial loss, and reduce downstream damage through the latter