* Labor action in UK, U.S. supports crude prices
* EIA data shows less demand in November
* Market eyes U.S. economic indicators due later on Monday
By Fayen Wong
PERTH, Feb 2 (Reuters) - Oil futures rose near $42 a barrel on Monday, buoyed by threats of major strikes by refinery workers in the United States and Britain, but the gains were tempered by concerns of sagging global energy demand.
Signs from OPEC late last week that it may deepen its record output cuts to stem the over $100 collapse in oil prices, and an abrupt end to a ceasefire in Nigeria's oil rich Niger-Delta also supported oil prices, analysts said.
U.S. light crude for March delivery <CLc1> rose 26 cents to $41.94 a barrel by 0048 GMT, after gaining as much as 63 cents in early trade. The contract settled 24 cents higher at $41.68 on Friday.
London Brent crude <LCOc1> rose 32 cents to $46.20.
"The slew of economic and oil demand data which came out of the U.S. last week were all pretty negative energy demand outlook," said David Moore, a commodity analyst at the Commonwealth Bank of Australia.
"But threats of refinery strikes on both sides of the Atlantic are probably giving oil some support."
United Steelworkers negotiators and oil company representatives returned to the bargaining table on Sunday, one day after telling thousands of U.S. refinery and chemical plant workers to stay on the job as they try to hammer out a new national contract. [
]The USW decided on Saturday night to extend the current agreement on a rolling 24-hour basis to keep talks going without a nationwide strike.
In Britain, Prime Minister Gordon Brown on Sunday condemned nationwide wildcat strikes over the use of foreign workers, but unions warned more staff may down tools this week. [
]But fears of a deep global recession and a tumble in world energy consumption continue to unsettle investors.
A report from the U.S. Energy Information Administration on Friday showed U.S. oil demand in November was 305,000 barrels per day less than previously estimated and was down 1.577 million bpd from a year earlier.
Data also showed U.S. gross domestic product fell at a 3.8 percent annual rate in the fourth quarter, the biggest drop since the first three months of 1982. [
]Oil markets were expected to closely eye Monday's U.S. economic indicators to gauge how the world's largest economy was faring. Data due to be released include personal income and consumption, construction spending for December and the Institute for Supply Management's January index of manufacturing activity.
OPEC secretary general Abdullah al-Badri told Reuters on Friday the producer group was willing to cut output further at its meeting in March, adding to agreed cuts of 4.2 million barrels per day since September to prop up prices [
].Oil prices were also bolstered after Nigeria's main militant group warned of a "sweeping assault" on the country's oil and gas industry on Friday, saying it was calling off a ceasefire after a military strike on one of its camps. [
] (Reporting by Fayen Wong; Editing by Dhara Ranasinghe)