NEW YORK, Oct 5 (Reuters) - U.S. crude oil futures slumped Monday on concerns about weak demand and high inventories as well as a perceived lessening of geopolitical threats to supply in Iran and Nigeria. "Crude futures remain under pressure due to concerns over global supply and fuel demand after the U.S. government released a dismal unemployment report on Friday," Addison Armstrong, analyst at Tradition Energy in Stamford, Connecticut, said in a research note. Providing some support for oil was the dollar's weakness after a G7 meeting reaffirmed the market's view policymakers are comfortable with a gradually weakening dollar. [USD/ Oil markets will be eyeing the Institute for Supply Management's September services index due to be released at 10 a.m. (1400 GMT) on Monday. [ID:nN02523757] U.S. commercial crude oil and refined products remain at sizable premiums to year-ago levels. [EIA/S] Wall Street opened higher Monday. [.N] PRICES * On the New York Mercantile Exchange at 9:30 a.m. EDT (1330 GMT), November crude CLX9 was down $1.04, or 1.49 percent, at $68.91 a barrel, trading from $68.41 to $70.22. * In London, November Brent crude LCOX9 fell $1.10, or 1.62 percent, to $66.97 a barrel, trading from $66.46 to $68.26. * NYMEX November RBOB RBX9 fell 2.29 cents, or 1.32 percent, to $1.7180 a gallon, trading from $1.7057 to $1.7450. * NYMEX November heating oil HOX9 fell 3.48 cents, or 1.94 percent, to $1.7620 a gallon, trading from $1.7544 to $1.8007. * The November/November RBOB crack spread <0#RB-CL=R> was at $3.25 after ending at $3.17 on Friday. The November/November heating oil crack spread <0#CL-HO=R> was at $5.20 after ending at $5.52 Friday. * The spread between the current front month and the five-year forward crude contract CLc61 was at $14.23, based on the November 2014 contract Friday settlement at $83.14. The spread ended Friday at $13.19. TECHNICALS NYMEX crude 10-day/20-day moving average: $68.69/$69.85 Technical support/resistance: NYMEX crude: $68.32/$71.39 NYMEX heating oil: $1.6995/$1.9065 NYMEX RBOB: $1.67/$1.8150 For a full report on technicals, click on [ID:nL5706055] MARKET NEWS * U.N. experts will inspect Iran's newly disclosed uranium enrichment plant on Oct. 25. [ID:nL4526913] * President Barack Obama's top security adviser on Sunday dismissed a report that Iran was closer to making an atomic bomb and said Iranian cooperation in the last few weeks was good for nuclear nonproliferation. [ID:nN0487557] * Nigeria's last prominent militant leader agreed to halt fighting in return for an unconditional pardon. [ID:nL4527500] * Shell Oil Co (RDSa.L) was restarting some units at its Scotford refinery near Edmonton, Canada, the refinery said in a notice on a community information line. [ID:nN05373176] * Saudi Arabia cut the official selling price for its benchmark Saudi Light Crude oil to U.S. clients in November by $1.70 a barrel to a discount of $4.60 below U.S. light crude and cut the price of Arab Light to Asian customers by 20 cents to Oman/Dubai average plus $0.40 a barrel.

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