PARIS - French oil major TotalEnergies expects its third-quarter downstream results to sharply decrease due to a 65% drop in refining margins in Europe and elsewhere, the company said on Tuesday amid a drop in global oil prices.

Shares in the company fell by over 3% in early trade.

TotalEnergies' European Refining Margin Marker stood at $15.4/t in the third quarter of the year, down from $44.9/t the previous quarter.

A drop in refining margins in recent months, a result of slowing global economic activity and new refineries coming online, is set to weigh on third-quarter earnings of the world's top energy companies.

BP, Shell and Exxon Mobil this month issued similar warnings, as oil prices fell 17% in the third quarter — the largest quarterly decline in a year — on worries about the global oil demand outlook.

Total's overall quarterly hydrocarbon production is expected to be at 2.4 million barrels of oil-equivalent per day (Mboe/d), at the lower end of guidance given in second-quarter results.

The company cited security-related disruptions in Libya, where a dispute between rival governments caused oilfield shutdowns, and an August outage at the Australian Ichthys LNG plant, in which Total holds a 30% stake, which left the site running at half-capacity into October.

That loss of production was partly offset by ramping up the 180kb/d Mero 2 oil development in Brazil, where Total holds a 19.3% stake.

Total's average LNG price for the quarter was $9.91 per million British thermal units — having guided around $10/Mbtu at Q2 results — with integrated LNG results expected to be above $1 billion, versus $1.3 billion a year ago, due to lower market volatility and production.

Results for the Integrated Power division are expected to be broadly in line with the second quarter.

The company will release third-quarter results on Oct. 31.

(Reporting by Tassilo Hummel, Editing by Dominique Vidalon, Bernadette Baum and David Evans)