Dollar near one-week high as markets grapple with Gulf tensions

HONG KONG, July 21 : The U.S. dollar hovered near a one-week high on Tuesday, with markets torn between conflicting Middle East signals, as hostilities in the region stoked renewed fears over energy supplies while hopes for a ceasefire offered some relief.Against the yen, the dollar was largely flat at 162.50 yen. The euro was also little changed at $1.1415, while the British pound held firm at $1.3434 af.ter Britain's new Prime Minister Andy Burnham vowed to stick to fiscal rules.The U.S. dollar index, which measures the currency against a basket of six peers, was steady at 100.96, near its highest level since July 15. Markets remained hostage to Middle East tensions, with oil prices experiencing sharp swings near six-week highs. Yemen's Iran-aligned Houthis declared a naval blockade on S