The gap between German and U.S. 10-year borrowing costs sat near its narrowest in a month on Thursday as the escalation of fighting in the Gulf sent euro zone yields higher, while cooler inflation data has kept U.S. Treasury yields in check. Germany's 10-year bond yield, the benchmark ‌for the ⁠euro zone, was ⁠last 1 basis point higher at 3.13%, its highest since May 20. [...]