Discussions aimed at averting a strike by fuel tanker drivers will resume on Wednesday - after mediators described the ongoing talks as "encouraging".
Leaders of the Unite union reconvened their negotiations with six distribution firms on Tuesday after the parties spent two days last week attempting to resolve a dispute over terms and conditions and health and safety.
And Advisory, Conciliation and Arbitration Service (Acas) chief conciliator Peter Harwood said those involved would continue trying to thrash out an agreement.
"Talks have adjourned for the day and will reconvene tomorrow morning," he said.
"I am encouraged that talks are continuing and that the parties are committed to finding a way forward."
Speaking after last week's talks were adjourned, he said: "The discussions have been constructive, with the parties positively engaged and committed to the process."
The dispute over terms and conditions and health and safety has been brewing for more than a year but flared up last month when Unite announced that workers in five firms had voted to strike.
The Government advised motorists to top up with fuel, leading to chaotic scenes at garages across the country as people queued for petrol.
There was much criticism of the way the Government handled the prospect of a strike and Labour led calls for the resignation of Cabinet Office Minister Francis Maude for advising motorists earlier to store jerrycans of fuel in their garages.
Unite previously announced it would not strike over Easter following the panic-buying.
The union will have to give seven days' notice of any industrial action.