* Russia to bar sales of Euro II low-grade gasoline
* Russian refinereies behind with upgrade schedule
* Putin says no slack for oil refiners
* Russia may import fuel from Belarus
By Maxim Nazarov
MOSCOW, Nov 29 (Reuters) - Top oil producer Russia risks gasoline shortages next year as its refineries fail to keep up with tighter emission standards, which could embarrass President Vladimir Putin and force Moscow to send Belarus more cheap crude in return for fuel.
Russia has insisted on introducing cleaner gasoline requirements although many of its refineries have not been upgraded and Putin's government needs imported fuel to avert politically damaging queues at the pumps.
This will weaken Russia's hand in annual talks with its ex-Soviet neighbour Belarus, which exports gasoline and diesel refined from subsidised Russian crude oil deliveries and wants more to bolster its struggling planned economy.
Russia has already made its crude-for-products offer but Belarus is holding out for a steep increase, creating uncertainty for Europe's oil market, which lost pipeline supplies to Europe via Belarus during a price dispute between Moscow and Minsk in 2010-2011.
"The situation in the spring of 2013 will be quite similar to what we had in 2011: constant crisis meetings, daily supply/demand calculations, accounting for every tonne at every petrol station, just to keep the fuel flowing from the pump," a Russian oil products trader said.
If that scenario arises next spring, it is likely to fuel discontent among voters who recently returned Putin to the Kremlin for a third term as president but amid street protests.
The problem has arisen because Russia will phase out Euro II gasoline and diesel, out of circulation in Europe since 1996, from the new year to come closer to EU emissions standards and spur output of quality fuels to meet rising domestic demand.
This year, Russia's Energy Ministry has estimated that the change in gasoline specification to reduce emissions of sulphur, a cause of lung disease and acid rain, would exclude 800,000 to 1 million tonnnes from Russia's gasoline pool, around 2.7 percent of annual consumption.
Russia's previous attempts to exclude Euro II gasoline have aroused political tensions in the run-up to elections and have led to postponements.
BELARUS NEEDS MORE
Russia holds out the prospect of increased deliveries next year if Minsk guarantees to send gasoline back to Russia and it already unexpectedly increased crude oil supplies to Belarus for November and December.
"The guaranteed return of gasoline will be an important condition of determining the amount," a source close to the talks said.
Belarus, its economy still recovering from a balance-of-payments crisis in 2010 that necessitated a Russian bailout, needs the crude to run its two refineries, key earners of hard currency revenues through diesel and gasoline exports to Europe.
Belarus is asking for 23 million tonnes of crude oil, or about 460,000 bpd, up from 21.5 million tonnes promised this year. Russian officials say the volume has yet to be agreed.
In an interview with Reuters this week, Belarus President Alexander Lukashenko said Russia was offering only 18 million tonnes, an effective cut.
"We have agreed with Russia on everything with the exception of 4 to 5 million tonnes of oil. We would like to refine 23 million," Lukashenko said.
Russian oil producers, which own almost all country's refineries, have fallen behind on refinery upgrades.
State controlled Rosneft is the largest producer of Euro II gasoline and has not kept up with upgrades, while some other refiners have upgraded to make Euro IV and V.
Seasonal factors are likely to heap pressure on the gasoline tightness in spring as high summer demand approaches.
To illustrate the seasonal rise, in 2012, Russian domestic monthly gasoline deliveries rose to 3.235 million tones by August from a minimum of 2.66 million tones in February, climbing by an average of 100,000 tonnes per month.
One oil company source said that the ministry's calculation of up to 1 million tonnes being lost to the gasoline pool under the proposed transition from Euro II may well prove to be unrealistically low.
"The energy ministry's estimate was based on the companies' plans and promises to switch from Euro II to Euro III while maintaining and even increasing volumes," the source said.
"But what is really going to happen? Someone won't manage in time, someone will have a refinery accident, and suddenly the deficit will be more than a million tonnes," another oil company source said.
Putin has said he will not cut refiners any more slack.
"We have pushed back the introduction of new (fuel) standards as some industries had not been ready for it," he said last month at a meeting of regional officials in Yaroslavl, an industrial city which has a large, relatively modern refinery producing Euro V fuels.
"But we can't postpone it indefinitely." (Reporting by Maxim Nazarov; Writing by Vladimir Soldatkin; Editing by Anthony Barker)
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