LONDON, Feb 11 (Reuters) - Spot differentials on Russian Urals eased slightly in the North on Monday as refinery maintenance weighed on demand, while Iraq raised its March prices and the March Kazakh CPC Blend programme emerged, showing an increase.         In the Platts window, PetroIneos offered a 100,000 tonne cargo of Russian Urals at dated Brent minus $1.55 cif Rotterdam loading March 4-8.      The offer was weaker than last week's deal but no buyer surfaced. It was unusual as PetroIneos is normally a buyer and supplies a UK refinery.      "The market is still resisting," one trader said.      Urals dropped sharply since the end of January due to approaching seasonal maintenance after a tight month underpinned prices, with severe loading delays caused by bad weather affecting ports across the Mediterranean and the Black Sea.     The March CPC Blend loading programme was set at 2.461 million tonnes, a preliminary programme showed, up from 2.297 million tonnes in February.     Tengizchevroil sold a 135,000 tonne cargo loading March 1-5, several traders said, at around dated Brent minus 90 cents, but buyer details could not be confirmed.     The grade has weakened lately due to poor naphtha margins but also an influx of West African crude and less U.S. buying of light sweets generally.      Iraq's state marketing company Somo raised March official selling prices for Europe. Kirkuk crude was set at dated Brent minus $2.55 and Basra Light at dated Brent minus $4.85.  
  ID:nL5N0BA45W
       The price was deemed reasonable and slightly compensatory of the severe loading delays in January, which created demurrage costs for traders.     "Very reasonable, the way it should be considering that people wasted a lot of money in demurrage," another trader said.     In tender news, Glencore won Polish company PKN Orlen's buy tender for a cargo of Urals loading Feb. 26-March 3, but price details were kept private.        The head of Russia's state oil pipeline monopoly, Transneft, signalled on Monday it was lining up for battle against private magnates who built their fortunes around the company's export infrastructure.  
  ID:nL5N0BB7X2
       Among those to lose business on the Druzhba is Summa, whose trading arm Soyuz did not receive its usual volumes in January.      BP has backed a move by Shell to head off a liquidity crunch in the Brent crude market where falling output and oilfield outages can boost global prices, raising questions about its credibility as a worldwide benchmark.  
  ID:nL5N0BBBVY
     (Reporting by Julia Payne; Editing by Anthony Barker)  ((julia.payne@thomsonreuters.com)(+44 0207 542 1836)(Reuters Messaging: julia.payne.reuters.com@reuters.net))   ((For a database of oil supply and demand fundamentals upstream and downstream, Reuters subscribers can click on 
  http://bond.views.session.rservices.com/ce/
   ((MED CRUDE OIL DIFFERENTIAL AND OUTRIGHT PRICE ASSESSMENTS:                       
  0#BFO-DIF
       
  0#C-E
         Urals Med       
  BFO-URL-E
       
  URL-E
         Urals NWE       
  BFO-URL-NWE
     
  URL-NWE-E
         Kirkuk          
  BFO-KIR
         
  KIR-E
          Siberian Light  
  BFO-SIB
         
  SIB-E
         Saharan Blend   
  BFO-SAH
         
  SAH-E
         CPC Blend       
  BFO-CPC
         
  CPC-E
         Azeri           
  BFO-AZR
         
  AZR-E
      CRUDE ARBITRAGE STORIES  
  O/CRUDEARB
        CRUDE OIL TRADES   
  CRU/T
      NORTH SEA CRUDE REPORT  
  CRU/E
      AFRICAN CRUDE REPORT  
  CRU/WAF
             Russia oil export schedule, monthly             
  O/RUS4
      Russia oil exports, table, monthly              
  O/RUS3
      Russia oil output by company, monthly           
  O/RUS2
      Russia oil output/exports, monthly              
  O/RUS1
      Russia product export, monthly                  
  O/RUS5
       
  ENERGY
   energy speed guide        
  CRUDE/1
   crude speed guide    NYMEX crude  
  0#CL:
    ICE crude  
  0#LCO:
                
  OPEC
   OPEC                 
  NSEA
    North Sea     
  CRU
    crude oil            
  PROD
    oil products     
  DRV
    derivatives          
  PRO/E
   European products     
  O/L
    Latest ICE           
  O/N
     Latest NYMEX     
  OILOIL
     
  NYMOIL
    
  IPEOIL
    
  OILSPD
    
  OILARB
           
  CRDWLD
   
  PRODEUR
     
  PRODUS
    
  APROD
  )) ))  Keywords: MARKETS MEDITERRANEAN/CRUDE