The Chief Executive of the Convenience Stores and Newsagents Association, which represents over 1,500 retailers including 300 filling stations, has warned it is going to take "quite some time" before things return to normal.
Speaking on RTÉ's Morning Ireland programme, Vincent Jennings said many service stations remain without fuel this morning but deliveries are due today or tomorrow.
He pointed out that oil companies are limited by the number of drivers and tankers they have to deliver the product.
"When you've created this difficulty, this vacuum in deliveries that has to be filled, and it's going to be filled by split loads ... instead of getting a full load, you might get a third of a load or half a load to carry you through. So it's going to take quite some time before it's fully back to normal," he explained.
Mr Jennings estimated that it could take up to six days before normal service is resumed, if there are no further disruptions.
The CEO of Fuels for Ireland Kevin McPartlan said that he is not sure how many forecourts are still without fuel, but it has improved since yesterday when it was around 600.
Tankers needing garda escort at Whitegate
Also speaking on RTÉ's Morning Ireland, Mr McPartlan said there is an ongoing delay at Whitegate in Cork as tankers still have to have a garda escort to enter the facility.
Mr McPartlan said that many drivers are being subjected to verbal abuse by protesters as they try to go about their work.
"There is still some slowing of progress out of Whitegate because the trucks are still needed to go in under garda escort, which means they have to go to a staging point, come together. That's adding about an hour to every truck movement, which is a problem.
"The lifting of the protests in Dublin has meant that we have more efficient routes coming out of Dublin Port, which accounts for about 50% of all of the fuel that comes into the country, but it's still not back to absolute normal levels," he said.
Mr McPartlan said "the next thing that we need is to make sure that the road network across the country is unhindered so we can actually get fuel to the people who need it".
However, he warned that "it could still take us up to 10 days" to get supplies back to normal.
