On Tuesday, Bloomberg reported that in the week up to October 1st, Russian seaborne oil exports rose to a three-month high, according to tanker tracking data.

The report said that last week, Russia shipped approximately 3.72 million barrels per day (bpd) of crude oil, which marked a 24% increase over the previous week, and the highest level since the week ended July 2nd. The increase boosted the four-week shipment average for the nation to roughly 3.3 million bpd, up from the 3.2 million bpd registered over the same period ending September 24th.

The average of the shipments currently comports with the plan by Moscow to reduce oil exports by roughly 300,000 bpd compared to the May/June baseline, through the end of the year. Bloomberg calculates that according to those numbers, shipments should be running at roughly 3.28 million bpd.

The increase in flows was coincident with the end of maintenance work which had curtailed the flows from two key ports over the previous weeks. The  maintenance work had limited flows out of Kozmino port on the Pacific coast, and the Primorsk port on the Baltic Sea.

Revenue from crude export duties in Russia increased alongside shipments over the previous week, rising to $77 million, which was the highest amount seen all year. The nation’s four-week average income also increased, reaching $68 million, the highest level seen since mid-January.

Alexander Novak, the Russian Deputy Prime Minister, reiterated on Wednesday that Russia would maintain its voluntary 300,000 bpd reduction in export volumes through October, and likely until the end of 2023.

He told reporters, “The voluntary cut comes to reinforce the precautionary efforts made by OPEC+ countries with the aim of supporting the stability and balance of oil markets,” adding that the Russian authorities will review the situation in November, with an eye to deciding if the restrictions should be extended.