Russia’s crude exports rose even as the country’s refinery runs increased amid a temporary lull in Ukrainian attacks on its oil processing plants.

Overseas flows edged higher to 3.65 million barrels a day in the four weeks through Nov. 1, tanker data compiled by Bloomberg showed. That was up by 60,000 barrels a day from the revised figure for the period to Oct. 25.

Ukraine’s strikes against Russian refineries resumed at the end of last week, with attacks on at least four plants since Friday. Sites targeted included the Novokuibyshevsk refinery in the Samara region, a plant at Ufa in Bashkortostan, Kstovo — site of the Norsi refinery — and Yaroslavl, northeast of Moscow.

The renewed barrage came after a near two-week pause that coincided with US President Donald Trump’s call for a halt to attacks that he has blamed for soaring worldwide diesel prices. Strikes on refineries force Moscow to divert crude it can’t process into the export stream, potentially boosting overseas crude sales. But a lull in those attacks typically allows repairs to be done, boosting processing and pulling crude back into the domestic refineries.

Moscow has stepped up its own attacks on civilian infrastructure in Ukraine ahead of peace talks, mediated by the US, that are scheduled to take place on Nov. 10-11 in the United Arab Emirates. The working-level meeting is not expected to lead directly to a halt in fighting.

Separately, an oil pumping station at Samara was hit in a suspected Ukrainian drone attack early on Monday, briefly halting flows of Kazakh crude into the Russian pipeline system.

The Samara station is a major hub in Russia’s crude-pipeline network, handling supplies from western Siberia and Kazakhstan for delivery to Novorossiysk on the Black Sea and Ust-Luga on the Baltic. Kazakh flows restarted on Tuesday and the attack seems unlikely to affect crude shipments from the two export ports in the coming week.

In the week to Nov. 1, some 38 tankers loaded 27.8 million barrels of Russian crude, vessel-tracking data and industry reports show. The volume compared with a slightly revised 27.12 million barrels on 37 ships the previous week.

Shipments rose by 100,000 barrels a day last week to average 3.97 million barrels a day, the highest in five weeks.

Weekly shipments can be volatile, affected by weather, maintenance work, sanctions, military activity and the timing of departures.

There were three shipments of Kazakhstan’s Kebco grade from Novorossiysk during the week. Since the start of September, Moscow has diverted all shipments of Kazakh crude through the Black Sea port, freeing up more capacity for its own barrels at Ust-Luga on the Baltic, which is seen as safer.

On a four-week average basis, the gross value of Moscow’s oil shipments edged up to a three-week high of $2.66 billion a week in the 28 days to Nov. 1. The small increase in total flows and 16th straight gain in prices for the Pacific ESPO grade were largely offset by lower prices for Russia’s key Urals crude.

On a weekly basis, the value of exports was little changed at about $2.78 billion, with lower prices for all grades virtually offsetting the increase in shipments.

China and India remain the biggest buyers of Russian crude by a considerable margin. But it’s not always possible to assign a final destination to individual cargoes until well into their voyage, leaving many of the more recent shipments on tankers showing interim destinations, such as Suez, Port Sudan, or Singapore. These are recorded as “Unknown Asia” until a credible final destination is available. Ships still showing their destinations as their Russian loading ports, or places such as Gibraltar, are recorded as “Other Unknown.”

Observed shipments to Russia’s Asian customers, including those showing no final destination, rose to 3.52 million barrels a day in the 28 days to Nov. 1, up from a revised 3.41 million in the period to Oct. 25.

Shipments to Moscow’s remaining customers in the Mediterranean region stood at about 130,000 barrels a day in the four weeks to Nov. 1, down from a revised 180,000 barrels a day in the four weeks to Oct. 25.

About 80,000 barrels a day was headed to Turkey in the four weeks to Nov. 1, down from 130,000 barrels a day in the earlier period.

An earlier flurry of shipments to Egypt, which took flows to as much as 160,000 barrels a day in mid-June, has fallen back to about 50,000 barrels a day in the most recent period.

Flows to Syria have fallen to zero since August after the Mediterranean nation agreed to “drastically” reduce Russian oil imports in negotiations with the US on lifting remaining sanctions.

Shipments to the region may be revised higher once destinations for almost 2 million barrels a day of crude become clear. Historically, most cargoes on ships showing intermediate destinations have been delivered to India or China.

This story forms part of a weekly series tracking shipments of crude from Russian export terminals and the gross value of those flows. The next update will be on Tuesday, Nov. 10.

All figures exclude cargoes identified as Kazakhstan’s KEBCO grade. Those are shipments made by KazTransoil JSC that transit Russia for export through Novorossiysk and Ust-Luga and are not subject to European Union sanctions or a price cap. The Kazakh barrels are blended with crude of Russian origin to create a uniform export stream. Since Russia’s invasion of Ukraine, Kazakhstan has rebranded its cargoes to distinguish them from those shipped by Russian companies.

Bloomberg classifies ship-to-ship transfers as clandestine if automated position signals appear to be switched off or falsified — a tactic known as spoofing — to hide the two vessels involved coming together to make the cargo switch.

Vessel-tracking data are cross-checked against port-agent reports as well as flows and ship movements reported by other information providers including Kpler and Vortexa Ltd. and satellite imagery covering Russian ports.

If you are reading this story on the Bloomberg terminal, click for a link to a PDF file of four-week average flows from Russia to key destinations.