I welcome the opportunity to try to provide some clarity. For people at home who are watching in, let us be clear what the current Finance Bill is doing. It is giving primary legislative underpinning to the financial resolution; no more, no less. We in this House voted through a financial resolution to reduce the excise duty on diesel, petrol and green diesel. If there is a large gap between a financial resolution and the standard annual budget, you have to bring forward primary legislation to underpin that; no more, no less. The legislation we are bringing forward now is on a status quo basis providing an underpinning to something that this Oireachtas voted on many weeks ago. In that way, it is slightly peculiar that it has to happen, but it has to happen legally.
The total estimated cost of the support measures that the Government has introduced thus far is over €750 million. People know what that meant. It meant reducing petrol, diesel and marked gas oil, MGO, from an excise point of view. It also meant the deferral of the May carbon tax increase on home heating oil fuels and MGO, as well as a reduction in the National Oil Reserves Agency, NORA, levy. We have also had the diesel rebate scheme for licensed road haulage and passenger transport operators, the fuel income support scheme to assist farmers and farm contractors and the road transporter support scheme to help the road transport sector. The fuel allowance was extended by four weeks.
I acknowledge and welcome the current reopening of the Strait of Hormuz. We have seen positive responses on the commodity markets, in that there has been a reduction in oil prices. I accept they are still higher than they were. There does remain, let us be truthful, significant uncertainty over details of the agreement. We have been here previously. Let us hope for a positive situation. I am conscious that the situation is evolving.
Brent crude, the global benchmark for oil prices, as of 23 June stood at approximately $77 per barrel. This is down from a peak of approximately $115 in early May, but still above prices of around $70 per barrel recorded before the war. It is likely that there will continue to be disruption to supply chains and damage to energy infrastructure and it will, therefore, take some time for things to restore to pre-war levels.
We are continuing to monitor the situation closely and reserve the right to adjust our response. We have to get the balance right between solid budgetary management, which gives us an ability to respond in a timely manner, and making sure that people do not see some sort of immediate cliff-edge at the end of July. The Government will make a determination in the coming days.