U.S. frontmonth contract at discount to secondmonth
U.S. crude stocks rise, output holds steady at record
China Oct oil refinery runs slow from previous month
China39;s prolonged property gloom weighs on market

Nov 16 Reuters Oil prices fell on Thursday, extending losses from the previous session, as signals of higher supply from the United States met worries about lackluster energy demand from China.

Brent futures were down 48 cents at 80.70 a barrel at 0630 GMT. U.S. West Texas Intermediate crude WTI shed 53 cents to 76.13 a barrel.

Both benchmarks fell more than 1.5 in the prior session.

WTI39;s frontmonth contract also traded below the price for the second month, a structure known as contango, suggesting that investors expect prices to increase. The front month39;s discount to the second month traded at minus 17 cents on Thursday.

Concerns over a recordhigh U.S. production rate put fresh pressure on oil prices, adding to an already worrisome demand outlook, said Tina Teng, a markets analyst at CMC Markets in Auckland.

U.S. crude stocks rose by 3.6 million barrels last week to 421.9 million barrels, according to the U.S. Energy Information Administration EIA, far exceeding analysts39; expectations in a Reuters poll for a 1.8 millionbarrel rise.

U.S. crude production held steady at a record 13.2 million barrels per day bpd.

In Asia, China39;s oil refinery throughput eased in October from the previous month39;s highs as industrial fuel demand weakened and…