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* Futures down: Dow 0.42%, S&P 500 0.53%, Nasdaq 0.64%

April 13 (Reuters) - Wall Street futures slipped on

Monday, starting the week on a subdued note, after talks between

the U.S. and Iran over the weekend failed to deliver a deal to

end the war.

The declines indicate that any relief from the ceasefire

reached last week could be fleeting, and underscore the risks of

leaning too heavily into bullish bets when the geopolitical

environment remains uncertain.

The U.S. military is hours away from beginning a blockade of

all maritime traffic entering or leaving Iranian ports and

coastal areas, in a move aimed at ramping up pressure on Tehran.

"For the Iranians who up to now have felt that time is on

their side, it puts pressure on their allies to encourage Iran

to come to the table to make a deal," said William Blair's macro

analyst Richard de Chazal.

As of 04:25 a.m. ET, Dow E-minis were down 200

points, or 0.42%. Nasdaq 100 E-minis declined 163

points, or 0.64%, while S&P 500 E-minis fell 0.53%, or 36

points.

The shift in sentiment was also visible across other asset

classes, with investors gravitating toward the safe-haven U.S.

dollar while trimming exposure to equities across geographies.

Oil prices jumped back above $100 a barrel, aggravating

inflation worries after data last week showed that a record

surge in the cost of gasoline and diesel prompted the biggest

increase in consumer prices in nearly four years in March.

Investors are also focused on the start of the U.S. earnings

season, with Goldman Sachs ( GS ) scheduled to report before the

bell. Commentary from the investment banking giant's executives

will be parsed for clues on how the Middle East conflict, now in

its seventh week, is impacting the economy and the capital

markets.

Goldman shares were marginally higher in premarket trading

but outperformed most of its Wall Street peers.

Travel-related stocks fell, with carriers such as Delta Air

Lines ( DAL ) and JetBlue Airways ( JBLU ) down 2.2% and 3.8%,

respectively, on concerns that higher oil prices might push up

fuel costs.

Energy stocks gained, with Chevron ( CVX ), Exxon Mobil ( XOM )

and ConocoPhillips ( COP ) climbing 2.3%, 2.6% and 2.8%,

respectively.