0953 GMT - U.S. Treasury yields and the dollar decline due to falling oil prices, a retreat in market expectations of a Federal Reserve rate hike in September and a stronger yen. New York Fed President John Williams told CNBC Wednesday that he saw no clear signs of a necessity to raise interest rates for now. That said, the possibility of a Fed rate hike this month could "continue to underpin Treasury yields and limit the dollar's downside," Sky Links Capital Group's Daniel Takieddine says in a note. The DXY dollar index falls 0.4% to a six-day low of 99.166. The 10-year U.S. Treasury yield falls 1.8 basis points to 4.774%, having reached a near three-year high of 4.818% on Wednesday, according to Tradeweb data.