The offering at auction clearly exceeded buyer demanded with 10 per cent and 5pc pass in rates across the two days.
The Eastern Market Indicator surged another eight cents a kilogram higher to hit the record price of 1820c/kg.
The Eastern Market Indicator climbed back up to its record level of 1818 cents a kilogram last week.
Dunedoo district sheep breeders displayed another top-quality line-up of locally bred Merino and first-cross ewes at the fixture's 70th sale.
The average retail price of lamb for the first nine months of 2017 was $14.82 a kilogram exceeding the previous record highs in 2011.
After some years of review and negotiation Narromine saleyards are now under a three-year lease by agents.
In the first sale of the new year Narromine special store sheep sale attracted 12,500 head and more than 100 enthusiasts.
Although still at sky high levels, the Eastern Market Indicator finished Thursday’s trading at 1801 cents a kilogram.
Frenzied bidding kept up the price pace early this week, pushing the Eastern Market Indicator even higher.