The region's motorists could save around £17 on a tank of fuel as two major supermarkets slash prices at the pumps.
From first thing this morning people filling up with unleaded at a Morrisons petrol station will pay no more than 99.9p per litre. For three days ASDA is also charging 99.7p per litre on unleaded and 103.7p per litre on diesel.
It's the first time any retailer has brought its everyday price down to below the £1 mark since June 2009.
Compared to the fuel price peak in May 2011 when a litre of petrol cost 134.67, today drivers filling up a 50 litre tank could save £17.39.
Earlier this week the RAC predicted that prices would move below £1 a litre before the Christmas getaway.
Here's Peter Williams from the organisation.
With the oil price tumbling, Morrisons is making the cut a fortnight earlier than expected.
Morrisons says it will hold the price for as long as possible, but it remains subject to changes in oil markets and foreign exchange movements.