MEPs negotiating emergency rules to fill European gas storage facilities are pushing for a deal in the next two months, Reuters reports.

As the EU seeks to reduce dependence on Russia, which supplies about 40% of the EU's gas, and prepares for potential supply disruptions, the proposed rules would require countries to fill their gas storage facilities to at least 90% by November 1 of every year from 2023 and by 80% this year.

MEP Jerzy Buzek, a former Polish prime minister, said the parliamentary team hopes to start negotiations with EU countries in two weeks and reach a deal that lawmakers can vote on in June. Parliament and the EU countries must approve the bill.

It may take about two years for the EU law to be agreed and approved, but the gas rules have been adopted on a fast track.

Unresolved issues include what the EU will do if countries fail to fill their vaults, and whether this year's target should also be 90%. EU gas storage facilities are currently 29% full.

The EC's proposed rules would require countries to take all necessary measures to fill their storage facilities, including possible compensation to companies involved in buying gas.

EU countries are arguing about how states with little or no storage will share the burden of buying supplies to fill storage in other countries at prices that have skyrocketed since the Ukraine crisis escalated.