EU energy ministers meeting in Prague will attempt to provide clearer instructions on what the European Commission should propose as the bloc's next emergency energy measure.
With gas prices almost 90% higher than a year ago, most EU countries say they want a gas price cap, but disagree on its design.
Those discussions "went in all directions", one EU diplomat said - referring to the numerous options being floated, including a price cap on all gas, pipeline gas, or just gas used to produce electricity.
Some countries, including Germany, Europe's biggest gas consumer, oppose a broad gas price cap, fearing it would leave Europe struggling to attract supplies from price-competitive global markets this winter.
Norway's energy minister Terje Aasland, who joined Wednesday's meeting along with other European non-EU members, said his country "doesn't recommend" a gas price cap.