SINGAPORE, April 21 (Reuters) - The cash differential for the 380-cst fuel oil rebounded on Monday, narrowing to a one-week high on hopes that the market has bottomed out, traders said.     The 380-cst cash differential stood at minus $2.50 a tonne to Singapore spot quotes, versus minus $3.06 a tonne last Thursday.     "The market seems to be at the bottom level now," said a North Asia-based fuel oil trader.     Despite signs of improvement, the overall outlook was still soft, traders said, with requirements from Singapore and China still thin.     "The fuel oil market is still quite bearish - low demand in Singapore and in the Far East. China's spot demand is apparently also quite low," said a Singapore-based fuel oil trader.     Besides Singapore, the world's largest bunkering hub, China is another key fuel oil export destination in Asia, where heavy distillate is used as a feedstock in refineries, power stations and vessels.     Fuel oil exports from India were sold at lower premiums, reflecting a weakening market.     Indian Oil Corp (IOC) sold 22,000-24,000 tonnes of 180-cst for loading over May 3-5 from Mumbai at a discount of about $18 a tonne to the IOC formula, 12 percent higher than its last sale of a similar cargo to BP at a discount of $16 a tonne.      Singapore's onshore fuel oil stocks fell 10 percent in the week to April 16 to 19.842 million barrels (3.12 million tonnes), data from trade agency IE Singapore showed on Monday.     The decline in shipments into the oil trading hub outpaced the rise in exports from Singapore.     Imports were down 29 percent at 1.14 million tonnes, while exports were up 10 percent at 619,000 tonnes.     There was no cash trading on Friday due to a public holiday in Singapore.         *CASH DEALS     BP sold to SK Energy 20,000 tonnes of 180-cst for May 11-15 at a discount of $3 a tonne to Singapore spot quotes over the first half of May.     BP sold to Mercuria 20,000 tonnes of 180-cst for May 17-21 at a discount of $3 a tonne to Singapore spot quotes.          *TENDER NEWS      Korea Western Power Co Ltd (WP) is seeking 45,000 tonnes of high sulphur fuel oil for May 21-25 arrival to Pyeongtaek via a tender that will close on April 25, the utility said on its website.  
  ID:nL3N0NA0TL
         FUEL OIL                                                                             CASH ($/T)          ASIA CLOSE       Change   % Change   Prev       RIC                                                           Close        Cargo - 180cst               596.27     0.89       0.15     595.38   
  FO180-SIN
    Diff - 180cst                 -2.85     0.05      -1.72      -2.90   
  FO180-SIN-DIF
    Cargo - 380cst               586.96     1.74       0.30     585.22   
  FO380-SIN
    Diff - 380cst                 -2.50     0.56     -18.30      -3.06   
  FO380-SIN-DIF
    Bunker (Ex-wharf)-           588.00     1.00       0.17     587.00   
  BK380-B-SIN
    380cst                                                                Bunker (Ex-wharf)              1.04    -0.74     -41.57       1.78                   Premium                                                                                                                                                    For a list of derivatives prices, including margins,                                 please double click the RICs below.                                   Brent M1             
  BRENTSGMc1
                                                       180cst M1            
  FO180SGSWMc1
                                                     180cst M1/M2         
  FO180SGSDMc1
                                                     180cst M2            
  FO180SGSWMc2
                                                     Visco M1             
  FOVISSGDFMc1
                                                     Visco M2             
  FOVISSGDFMc2
                                                     380cst M1            
  FO380SGSWMc1
                                                     380cst M1/M2         
  FO380SGSDMc1
                                                     380cst M2            
  FO380SGSWMc2
                                                     Cracks 180-Dubai     
  FO180SGCKMc1
                                                     M1                                                                    Cracks 180-Dubai     
  FO180SGCKMc2
                                                     M2                                                                    East-West M1         
  FOSGEWMc1
                                                        East-West M2         
  FOSGEWMc2
                                                        Barges M1            
  HFOFARAAMc1
                                                      Barges M1/M2         
  HFOFARAASMc1
                                                     Barges M2            
  HFOFARAAMc2
                                                      Crack Barges-Brent   
  HFOFARAACMc1
                                                     M1                                                                    Crack Barges-Brent   
  HFOFARAACMc2
                                                     M2                                                                       (Reporting by Jane Xie; Editing by Subhranshu Sahu)  ((jane.xie@thomsonreuters.com)(+65 6870 3495)(Reuters Messaging: jane.xie.thomsonreuters.com@reuters.net))  Keywords: MARKETS ASIA/FUELOIL