They already have nuclear ones. They are working on nuclear cargo ships, now, in fact.

There is an enormous glut of oil on the sea. Tankers just floating around, finding no port. Oil is not a rare resource and the price is in the basement. That's why Exxon was like, nah. It's not just the legal uncertainty, it's that nobody actually wants to invest in oil.

https://www.theguardian.com/us-news/2026/jan/12/us-oil-producers-global-supply-glut-venezuela