* Dollar rally outweighs positive economic signs
* Crude slide now 8 days long
* High U.S. stocks and contango in focus (Recasts, updates prices, market activity to settlement)
By Edward McAllister
NEW YORK, Dec 11 (Reuters) - Oil fell for the eighth consecutive session on Friday, edging below $70 a barrel as a stronger dollar pressured prices, outweighing positive economic data from the United States and China.
U.S. crude for January delivery <CLc1> fell 67 cents to settle at $69.87, matching an eight-day losing streak last seen in Oct 2003. Over the past eight trading days, front month crude has sunk $8.50, nearly 11 percent.
Brent crude futures <LC0c1> rose 2 cents to settle at $71.88, after five straight days of losses.
The U.S. dollar rallied, boosted by higher-than-expected U.S. retail sales in November. [
] [ ] A stronger dollar induces investors to sell off commodity positions and tends to pressure crude prices."The dollar's strength is overwhelming other inputs. Energy prices seemed to benefit the most from the dollar's weakness all year, and now it's payback time," said John Kilduff, partner at Round Earth Capital in New York.
This quarter, some investors have shifted money out of the sinking dollar and into tangible assets such as oil and gold. This had helped to support oil in a band between $75 and $82 a barrel in October and November.
But prices broke below this range earlier this week, leaving a more uncertain outlook for crude.
Investors have looked to wider economic data this year for signs of economic recovery and a potential rebound in energy demand.
U.S. equities rose on Friday as the retail sales and consumer spending numbers reinforced investor confidence that the economy was recovering. [
]U.S. consumers stepped up their spending in November and grew optimistic this month, unexpectedly strong data showed. [
]Earlier, a forecast from the International Energy Agency (IEA) showed world oil demand will rise by almost 1.5 million barrels per day (bpd) in 2010 to 86.3 million bpd, and the rate of demand growth will also accelerate. [
]The report came after the U.S. Energy Information Administration revised down its own world oil demand forecast for 2010 on Tuesday. [
]In early trading, strong industrial growth figures out of China had supported prices.
China's November industrial output surged to its strongest since June 2007, underscoring the economy's robust recovery from the global downturn, and analysts expected the trend to continue in coming months. [
]OVERSUPPLY
Earlier this week, the EIA reported stocks at the U.S. delivery hub of Cushing in Oklahoma rose 2.5 million barrels to 33.4 million barrels. [
]This inventory overhang has depressed front-month U.S. crude prices relative to oil futures, resulting this week in a WTI crude market contango -- or a premium of distant futures prices over prompt month prices -- of more than $2 a barrel, the widest WTI crude market contango since August.
For graphic showing steepening of the forward curve, see: http://graphics.thomsonreuters.com/129/CMD_NYOIL1209.gif
"There is a strong message in the oil market and that is weakness. The contango is widening significantly and this points to physical oversupply," said analyst David Wech at JBC Energy, referring to both inventories on land and in floating storage.
Distillate and gasoline stocks rose last week, despite cold weather, as supply remained ample versus demand.
The volume of refined oil products stored on ships floating in the sea increased to 98 million barrels at the end of November, the IEA said on Friday. [
] (Additional reporting by Robert Gibbons and Gene Ramos in New York and Emma Farge in London; Editing by David Gregorio)