Jose Sergio Gabrielli is no longer CEO of Petrobras, Brazil's state-controlled oil company. He was replaced by Maria das Graças Foster, a business leader with close ties to the president of Brazil, Dilma Rousseff.

DiscoveryNews reports that a New York design firm is planning to harvest energy from wind using compression rather having it blow through a blade and turn a turbine.

A vulcanologist at the University of British Columbia may have cracked the riddle on how kimberlite magma, and the valuable diamonds it sometimes carries, pushes its way up from deep underground.

Forty technicians were needed to create a 8.5 mm hole so an endoscope could be lowered inside the stricken Fukushima containament vessel. […]

Bloomberg reports that Ivanplats Ltd., an Africa-focused mining company controlled by billionaire CEO Robert Friedland, may seek up to $1 billion in an IPO.

The share price performance of those non-Chinese rare earth miners closest to production – Molycorp in the US, Australia's Lynas and Great Western Minerals in South Africa – is in stark contrast to what is happening to rare earth oxide prices, some of which have more than halved over the last three months.

Two consecutive days of surprise negative news this week tore strips off the share prices of South Africa’s two leading platinum mining companies.

Stock in both US Gold Corp and Minera Andes charged ahead more than 7% in morning trade on Friday after announcing that their respective shareholders voted in favour of a proposed business combination. The new entity, with projects in the US, Mexico and Argentina will be named McEwen Mining and headed by industry veteran Rob McEwen.

Peter Kent, Canada's environment minister on Friday referred Teck Resources's newly acquired Frontier Oil Sands project in northern Alberta to an independent review panel because of the propose mine's "potential for significant adverse effects on the environment. "