March 12 (Reuters) - Wall Street's main indexes opened

lower on Thursday as oil prices surged to nearly $100 a barrel,

fanning inflation worries and forcing traders to dial back

expectations of U.S. interest rate cuts.

The Dow Jones Industrial Average fell 174.7 points,

or 0.37%, at the open to 47242.52. The S&P 500 fell 34.9

points, or 0.52%, to 6740.88​, while the Nasdaq Composite

dropped 189.5 points, or 0.83%, to 22526.585.