The Peruvian government has blocked oil exploration by US company Barrett Resources in the northern Amazon over concerns about uncontacted tribes living there. The news comes just days after a similar decision was made by the government about oil activity in a neighbouring part of the rainforest...Only a week earlier the Ministry rejected Spanish oil giant Repsol YPF’s EIA [environmental impact assessment] on similar grounds. Neither company can proceed any further before it gains the Ministry’s approval. [also refers to Perupetro]