Oz Minerals (ASX:OZL) joint venture with Minotour Exploration (ASX:MEP) has doubled its drilling in Queensland from 1,700 metres to 2,500 metres.
It comes after they intersected high-grade copper values.
The drilling program along the Jericho and J2 North copper systems were expanded southeast of Cloncurry.
The expanded program added an extra 7 holes.
Shares Oz Minerals (ASX:OZL) are trading 1.57 per cent higher at $9.38.