NEW YORK--(BUSINESS WIRE)--Petroleo Brasileiro S.A.'s (Petrobras [BBB/ Stable]) third-quarter financial statement release without assets write-offs prevented the oil company from violating some debt covenants. The decision to delay recording an impairment does not have an immediate credit impact according to Fitch Ratings, although it does prolong the uncertainty surrounding the company's ability to make the necessary adjustments to comply with covenants that require it to report audited year-e