Shares in Repsol YPF were suspended on Thursday as the Spanish oil and gas group revealed it would have to revise down proven reserves equivalent to 25 per cent of its total.
More than half of the revisions relate to Bolivia, where the company said it would make a downward adjustment of 658m barrels of oil equivalent (BOE) of gas and oil. It mainly blamed reforms to the country’s hydrocarbons law under new socialist president Evo Morales, which it said would affect investment and production.
However, rumours that Repsol had overstated its Bolivian reserves, constantly denied, have been swirling around the Spanish stock market for more than a year.
The company said: “In Bolivia, the introduction of the new hydrocarbon law has rendered future production at certain fields and several development projects no longer commercially viable.” In neighbouring Argentina, 509m barrels are affected, Repsol said.
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