A strike at French energy company TotalEnergies has continued for a seventh day, disrupting an already troubled power supply, and may continue, a representative of the CGT trade union told Reuters on Monday.

Oil and refinery deliveries have been suspended across France after four TotalEnergies sites, including the 240,000-barrel-per-day Gonfreville refinery in Normandy, were affected by the strike.

While the union has not yet decided whether to continue with the Gonfreville strike, facilities in La Mede, Feyzin, and Cote d'Opal remain suspended, according to CGT member Thierry Dufresne.

"Cleaning is affected, except for Donges, which is working normally," he said.

The strike, which is preventing refined products from leaving TotalEnergies' sites and one of its oil storage facilities, is part of a national, multi-sector action.

Battered by unprecedented inflation, rising costs of living, and angered by planned pension reforms, which include raising the retirement age, energy workers are demanding higher pay.