FinanceLukoil posts rare quarterly loss as impairments and forex biteHowever, Russian oil producer also cut its short-term debt to withstand shortfall of revenues during the second quarter as it has to reduce oil production to comply with Opec quotaTough times: Gas is flared at the Filanovskogo oil production platform, operated by Lukoil in the Russian sector of the Caspian SeaPhoto: REUTERS/SCANPIXVladimir AfanasievMoscow