0941 GMT - U.S. Treasury yields are slightly higher across the curve, although more so for short-dated yields as investors bet on Federal Reserve rate hikes to tame inflation. Middle East developments are also watched as a proposed agreement between Oman and Iran could lead to a deal between the U.S. and Iran to reopen the Strait of Hormuz. Uncertainty remains, however, as the potential deal between Oman and Iran could leave the latter controlling traffic in the Strait of Hormuz, Kudo.com's Konstantinos Chrysikos says in a note. The two-year Treasury yield rises 1.9 basis points to 4.197%, while the 10-year yield increases 0.6 basis points to 4.622%, according to Tradeweb. The DXY dollar index rises 0.1% to 99.755.