The Kingdom was sending a message to the US that "its no longer a unipolar world"...
Poster Comment:
Anti-Russia Alliance Splinters As Japan Buys Russian Oil At Price Above Cap; Others To Follow
Its not as if Japan cant manage without this. They can. They simply dont want to.
https://www.zerohedge.com/markets/anti-russia-alliance-splinters-japan-buys-russian-oil-price-above-cap-others-follow