CHENNAI, India, May 15 (Reuters) - The Middle Eastern crude market was steady as traders awaited the outcome of Tasweeq's al-Shaheen sale tender that closed on Wednesday.     The outlook continues to be mixed, even as refinery margins have inched higher to about $6 per barrel from about $5.5 earlier in the month and light and middle distillate cracks have since improved.              * TRADES:      - Four July Dubai partials were traded in the cash market on Wednesday between $99.20 and $99.30 per barrel, traders said. Traders Vitol and Phibro were the sellers, while Royal Dutch Shell and Gunvor were the buyers, they added.                     * MARKET NEWS     - China is set to give environmental clearance to a 1.39 billion yuan ($226.28 million) investment to build a large crude oil terminal in eastern Shandong province, a circular from the Ministry of Environmental Protection said.  
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       - Oman, a crude oil exporter, started importing refined fuels this year, the head of Oman Oil Refineries and Petroleum Industries Company (ORPIC) said, after a two-month shutdown of its biggest refinery.  
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       - Asia's biggest refiner, Sinopec Corp, will not export diesel in May after exhausting Chinese government quotas, a trader at the company said, in a move likely to provide further support to the gas oil market in the region.  
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       - The flow of oil from Iraq to Turkey on the Kirkuk-Ceyhan pipeline was restored on Wednesday, a Turkish energy official said, following a two-day outage.  
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             CRUDE ($/bbl)                        Price     Prev     Change  JUL DME Oman diff to Dubai swap         1.07     0.92    +0.15  JUN Brent   
  BRENTSGMc1
                 102.15   102.65    -0.50  JUL Dubai  
  DUBSGSWMc2
                   98.37    99.18    -0.81  JUL DME Oman                           99.44   100.10    -0.66  JUN Brent/Dubai EFS  
  DUB-EFS-1M
          3.36     3.05    +0.31                                                            PRODUCT CRACKS                                            JUN fuel oil crack  
  FO180SGCKMc1
       -6.87     -7.10    +0.23  JUN gasoil crack  
  GOSGCKMc1
            16.32     16.56    -0.24  JUN naphtha crack  
  NAFOBSGCKMc1
        -9.04     -8.54    -0.50                                                            COMPLEX REFINERY MARGINS  
  REF/MARGIN1
                      Today                                   6.09              Last 5 days                             5.94              Last 365 days                           7.43                (Reporting by Ramya Venugopal; Editing by Clarence Fernandez)  ((ramya.venugopal@thomsonreuters.com)(+91 80562 88685)(Reuters Messaging: ramya.venugopal@thomsonreuters.com.reuters.net))  
 ((RECENT CRUDE OIL TRADES           Asia... 
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                                CRUDE OIL MARKET NEWS           Crude oil tenders in Asia................... 
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             Global arbitrage news and flows................. 
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                             REFINERY MAINTENANCE DIARIES           Asia... 
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                             CRUDE OIL PRODUCTION/OILFIELD NEWS           OPEC output survey... 
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             New projects..... 
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             Asia outlook....... 
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             Global futures report... 
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             Australia physical crude, Tapis  swaps.......... 
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             All Asian crude oil  differentials................ 
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             All Asian crude oil outright  prices.................. 
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      ))
  Keywords: MARKETS MIDEAST CRUDE/