* Saudi troops enter Bahrain to support Sunni government
* Japan fuel needs after quake support distillate futures
* Coming up: API oil data at 4:30 p.m. EDT Tuesday (Recasts, updates with additional detail)
By Robert Gibbons
NEW YORK, March 14 (Reuters) - Crude oil prices were little changed on Monday in volatile trading, as Middle East unrest and distillate futures lifted by expectations quake-ravaged Japan will import fuel to cover for shut refineries offset concerns about slowed economic activity.
News that Saudi Arabia sent troops into Bahrain to help respond to protests by the Sunni ruling family's Shi'ite Muslim majority opponents helped pull oil off early lows.
Also supportive were strong distillate futures that were lifted by expectations that Japan will need to import fuel to cover lost refining and nuclear power generation capacity.
Global markets came under pressure earlier due to the catastrophe in Japan as oil demand in the world No. 3 energy consumer was expected to fall in the short- to medium-term as economic activity stalls and a third of its refining capacity was shut following the quake.
Brent crude futures for April delivery <LCOc1> fell 17 cents to settle at $113.67 a barrel, bouncing after sliding to $111.16, lowest since Feb. 25.
U.S. crude futures for April delivery <CLc1> rose 3 cents to settle at $101.19 a barrel, recovering from $98.47, the lowest intraday price since March 1.
Total U.S. crude volume was at 510,922 with 20 minutes remaining in post-settlement trading, on track to be the lowest volume since the first trading day of the year.
Low trading volume often suggests reluctance to sell, according to analysts and brokers.
"Japan's demand is expected to be way down in the near- to medium-term. But Saudi troops in Bahrain and fighting in Yemen and Libya bounced crude off their lows," said Phil Flynn, analyst at PFGBest Research in Chicago.
MIDDLE EAST UNREST
About 1,000 Saudi soldiers entered Bahrain, according to a Saudi official source. Opponents of the Sunni ruling family in Bahrain called the move a declaration of war. [
]The United States does not consider the Saudi entry into Bahrain an invasion, the White House said. [
]Scattered clashes broke out across Saudi neighbor Yemen, as military forces were deployed to check nationwide protests demanding the resignation of President Ali Abdullah Saleh. [
]Muammar Gaddafi's troops made advances in their counter-offensive against rebel fighters and were outpacing diplomatic efforts to impose a no-fly zone. [
]Libya's National Oil Corporation (NOC) has called on employees to return to work is hopeful oil production can soon increase, the head of NOC told Reuters. [
]More than half of Libya's 1.6 million barrels per day oil output is believed to have been shut in because of the Libyan uprising.
JAPAN'S EMERGENCY FUEL NEEDS
U.S. heating oil <HOc1>, ICE gas oil and natural gas futures rose on expectations Japan will increase fuel imports to cover lost oil refining and nuclear power generation capacity. <NEWOILOIL> <NGc1> [
]Heating oil futures rose more than 1 percent, "largely on expectations that Japan will be requiring a substantial amount of distillate or fuel oil to replace lost refinery production and to provide feedstock for electricity generation," Jim Ritterbusch, president at Ritterbusch & Associates, said in a note.
U.S. Gulf Coast jet fuel and ultra-low sulfur diesel differentials to the benchmark heating oil futures contract rose more than a penny per gallon on the expected boost of exports to Japan. [
] <^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Factbox on Japan quake tears through commodity, energy sectors: [ ] SPECIAL REPORT-Can Japan find "New Deal?" [ ] Quake to hit Japan economy, lift debt [ ] Nuclear incident scale: http://r.reuters.com/cag58r Map of reactors: http://r.reuters.com/dyf58r ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^>JAPAN'S NUCLEAR WOES
Japan scrambled to avert a meltdown at a stricken nuclear plant after a hydrogen explosion at one reactor and exposure of fuel rods at another only days after a devastating earthquake and tsunami. [
]Nuclear fuel rods at one of the quake-stricken units were exposed for a second time, local media said, quoting the plant's operator, Tokyo Electric Power Co <9501.T>, increasing the risk of a meltdown and a higher level of radiation leak. [
] (Additional reporting by Gene Ramos in New York, Ikuko Kurahone in London and Alejandro Barbajosa in Singapore; Editing by Marguerita Choy)