ReutersBrent crude oil rises for a sixth day as supplies tighten amid strong demandReutersSINGAPORE (Reuters) - Brent crude oil rose for sixth day on Tuesday, passing $75 a barrel, on expectations that supplies will tighten because fuel is rising at the same time the United States may impose sanctions against Iran and OPEC-led output cuts ...What Is A 'Fair' Price For Oil?Yahoo FinanceCrude Surges to Three-Year High as Saudi-Yemen Conflict Heats UpBloombergOil Prices Up to Three-Year HighsWall Street JournalMarketWatch -The Hill -CNBC -Forbesall 186 news articles »