By Reuters Staff (Adds share performance, analyst comments) SAO PAULO, Feb 5 (Reuters) - Brazil’s President Jair Bolsonaro said on Friday he won’t interfere with pricing policy set by Petrobras, sending shares of the state-controlled oil company up nearly 3%, but would instead seek to reduce prices via tax changes. Bolsonaro’s comments were a relief to investors, who had feared a return to costly government interference in Petroleo Brasileiro SA, as the company is formally known. Between 2011 and 2015, Petrobras was forced to sell fuel at a loss in an attempt to prop up the economy, costing the company billions of dollars.