Shares in uranium hopeful Extract Resources continued their surge higher today after the company reported more good drilling results from its promising Rossing South project in Namibia.

The company said chemical assay results confirmed strong mineralisation 1.2km south of the current zone 2 resource area.

"The broad zones of strong uranium mineralisation from Rossing South continue to increase the known size of this massive mineralised system," Extract said in a statement.

Managing director Peter McIntyre said the results showed potential for a third zone of mineralisation.

"The potential of the entire 15km trend is enormous with some degree of mineralisation being encountered on every line drilled to date," he said.

He said the company would continue exploratory drilling as it pushed ahead with a feasibility study covering zones 1 and 2 of the project.

Extract shares were up 46 cents, or 4.84 per cent, to $9.96 at 11.25am after hitting an earlier all-time peak of $10.20.