This week’s Bulls N’ Bears ASX Runner of the Week is… Grand Gulf Energy, after the company acquired an option over a potential billion-barrel oil prospect off the coast of Namibia.

Free-carried. It is a term that many a junior exploration company executive dreams about hearing. The phrase essentially means the development of a project at the hands of a bigger and normally more established – and well-funded – backer, allowing the junior the opportunity to sit back and focus on an exploration campaign at the next prospect in the pipeline. Which brings us to the headline act of the latest Bulls N’ Bears Runners of the Week list, with MRG Metals (ASX: MRQ)

Si6 Metals has unearthed a clay hosted rare earths find in Brazil Credit: File Si6 Metals (ASX: SI6) has unveiled clay-hosted rare earths hits from surface sampling at its joint-venture (JV) Caldera project in the State of Minas Gerais in Brazil, in addition to discovering further nickel-copper-cobalt at the company’s Maibele North deposit, part of its base and precious metals play in Botswana. The company will now kick-off an auger drill campaign at its 50 per cent owned JV