The Guardian | Moody's downgrades Saudi Arabia credit rating over oil price slump The Guardian Saudi Arabia is the world's largest oil exporter. Moody's cut the country's long-term issuer rating one notch to A1 from Aa3 after a review that began in March. Crude prices fell from more than $100 in mid-2014 to under $30 a barrel in February ... Saudi Arabia and Bahrain See Low Oil Price Prompt Ratings Cut |