(Recasts headline, lead; updates prices, adds prices down $1.00)
By Jonathan Leff and Maryelle Demongeot
SINGAPORE, June 2 (Reuters) - Oil fell more than $1 to near $126 on Monday as the U.S. dollar edged up and traders shrugged off Tropical Storm Arthur, which marked the start of the Atlantic hurricane season by shutting two Mexican oil ports.
U.S. light, sweet crude oil futures <CLc1> fell $1.04 to $126.31 a barrel by 0749 GMT, extending last week's nearly $5 tumble as traders took profits from the previous week's record high above $135 on concerns over demand.
London Brent <LCOc1> fell 98 cents at $126.80.
The dollar edged up on Monday, even as many investors awaited U.S. data this week to see if the reports reinforce expectations for higher interest rates.
The greenback has rebounded against the euro on the prospect of the Federal Reserve eventually lifting rates. The dollar scored back-to-back monthly gains against the euro in April and May for the first time since early 2007. [
]The market shrugged off Tropical Storm Arthur, which formed one day before the official June 1 start of the Atlantic hurricane season, buit quickly weakened into a tropic depression. [
]Arthur, the first storm of a June-November hurricane period that forecasters expect to be more active than usual, forced authorities to shut two of Mexico's three main crude oil ports as a precaution. [
]State oil monopoly Pemex says its export volumes are rarely hurt by temporary port closures, as it reschedules delayed shipments once the weather clears.
"In the near term I think we'll be looking at issues around supply, the potential for disruption in key regions," said Gerard Burg, commodities analyst at National Australia Bank, noting the market will be more sensitive during the summer driving season.
"The peak (of the hurricane season) isn't until September/October but obviously that'll be a concern later into the third quarter."
OFF PEAKS
Oil hit an all-time high of $135.09 a barrel on May 22, driven by rising flows of cash from investors and concerns supplies will struggle to match demand longer term, but a series of fuel price hikes across Asia and protests in Europe last week shifted focus to the potential for weakening consumption.
Demand in consuming nations such as the United States and Britain has already showed signs of faltering under the weight of rising fuel costs, and some analysts are concerned demand in some Asian countries could be hit as governments cut subsidies.
While the world's number-two consumer China is resisting raising prices until after the August Olympics, other countries including Taiwan, Indonesia and Sri Lanka have been forced to hike pump rates as governments struggle to fund subsidies.
India is expected to raise prices slightly this week.
With the economic outlook shaky and demand for oil under pressure, OPEC has resisted calls to pump more crude, saying that the weak dollar, speculations and other factors -- not a shortage of supply -- are behind the one-third surge in prices this year.
OPEC President Chakib Khelil reiterated on Sunday the group would not make a decision on output policy ahead of its next meeting in September. [
]Oil traders are also bracing for the possibility of more surveillance of their markets from U.S. regulators, under political pressure to stem the rise in prices, a move they fear may shake some speculators out of the market.
The Commodity Futures Trading Commission said last week that it was investigating oil-market trading and beefing up reporting requirements. The New York Times reported on Saturday that the CFTC will unveil policy changes next week. [
]Crude oil speculators on the New York Mercantile Exchange cut their net long positions in half last week as prices began to fall, according to CFTC data. Net crude long positions fell to 25,867 in the week to May 27, from 50,060. [
]