Polish Ambassador to the EU Andrzej Sados on Friday told reporters Poland had backed the EU deal, which included a mechanism to keep the oil price cap at least 5% below the market rate.
A spokesperson for the Czech Republic, which holds the rotating EU presidency and oversees EU countries' negotiations, said it had launched the written procedure for all 27 EU countries to formally greenlight the deal, following Poland's approval.
The G7 price cap will allow non-EU countries to continue importing seaborne Russian crude oil, but it will prohibit shipping, insurance and re-insurance companies from handling cargoes of Russian crude around the globe, unless it is sold for less than the price cap.
The White House on Friday welcomed news that the EU was "coming together" on the oil price cap and said it should limit Russian revenues.
The initial G7 proposal last week was for a price cap of $65-$70 per barrel with no adjustment mechanism.