UPDATE 6-Brent drops on signals Libyan exports could resume
* Protest group in Libya signals possible end to blockade
* WTI-Brent spread narrows as TransCanada fills pipeline
* U.S. inventories down 2.7 mln barrels last week -poll
* Coming up: US API oil stocks at 4:30 p.m. EST (2130 GMT)
(Updates prices, changes byline, dateline (pvs LONDON)
NEW YORK, Dec 10 (Reuters) - Brent crude oil slid on Tuesday, extending losses for a second session on reports of a possible end to the months-long blockade of east Libyan oil terminals.
Leaders of a movement seeking autonomy for Libya's eastern Cyrenaica region said on Tuesday they could allow oil exports to resume on Dec. 15 from several ports if Tripoli meets their demands and allows the region to take its share of crude. Movement leaders said the group is set to begin trying to sell crude oil on its own if the government does not meet its demands.
The disruption has restricted Libyan oil output to 250,000 barrels per day (bpd), down from 1.4 million bpd in July, and supported the price of Brent.
U.S. crude oil or West Texas Intermediate (WTI) rose over $1 earlier in the session on news of progress toward the opening of a major pipeline that will transport oil from the U.S. Midwest to the Gulf, helping drain surplus crude at the pricing point for the futures contract.
The prospects of increased supply of Brent and less landlocked U.S. crude helped narrow the spread between the two to a month low of $10.48.
"The Brent-WTI spread has gone from below $10 to above $19 and now around $10 in the last five weeks, and now maybe we'll get Libyan production back in excess of 1 million barrels," said Gene McGillian, an analyst at Tradition Energy in Stamford, Connecticut.
"Now I think it's going to come down to what kind of inventory report we see."
Brent for January was down 66 cents at $108.73 at 11:53 a.m. EST (1653 GMT), reversing earlier gains of more than $1 to a high of $110.45. Brent dropped 2 percent on Monday, its biggest loss in five weeks.
U.S. light crude futures for January rose 70 cents to $98.04, after hitting a six-week high of $98.74 earlier in the session.
Brent's premium to U.S. crude <CL-LCO1=R> stood at $10.69.
TransCanada Corp began filling a 700,000 bpd pipeline that will transport crude from Cushing, Oklahoma, to Gulf Coast refiners. The company did not say when it expects the line to begin commercial service, but a filing with the U.S. Federal Energy Regulatory Commission last week said it expects the pipeline to be in service by Jan. 3.
Weaker-than-expected industrial output data from China released Tuesday and mixed economic data from Germany on Monday further weighed on Brent.
"The industrial production figures that we saw out of China were a little bit disappointing, and the data we've seen out of Europe hasn't been particularly great either," said Michael Hewson, analyst at CMC Markets.
A fall in the value of the U.S. dollar helped to cap losses. The U.S. currency hit a six-week low against the euro, increasing the purchasing power for consumers who buy oil priced in dollars.
Market participants await data on U.S. crude inventories from industry group the American Petroleum Institute to be released at 4:30 p.m. EST (2130 GMT).
U.S. crude oil stocks are forecast to have fallen for a second week last week by 2.7 million barrels, a Reuters poll of analysts showed.
(Additional reporting by Joshua Franklin in London, Florence Tan and Manash Goswami in Singapore; Editing by Christopher Johnson and Peter Galloway)