(Bloomberg) -- Oil steadied after Monday’s jump, as traders tracked the increasingly fragile four-week ceasefire in the Middle East following fresh clashes between the US and Iran. Most Read from BloombergUS Has Opened a Passage Through Hormuz, Central Command SaysChina’s Unprecedented Defiance of US Sanctions Triggers ShowdownUS and Iran Trade Fire in Gulf, Jolting Four-Week-Old TruceFormer NYC Mayor Giuliani in Critical Condition, Trump SaysBeijing Tells China Firms to Ignore US Sanctions on R