Petro-Canada gas stations across Canada are hit by technical issues preventing customers from paying with a credit card or rewards points as its parent company, Suncor Energy, reveals it suffered a cyberattack.

Suncor Energy is the 48th largest public company in the world and one of the largest synthetic crude producers in Canada, with annual sales of $31 billion.

The company says it took steps to mitigate the attack and notified authorities of the situation. At the same time, he expects transactions with customers and suppliers to be negatively affected until the incident is resolved.

“At this time, we are not aware of any evidence that customer, supplier, or employee data has been compromised or misused as a result of this situation,” Suncord reads. Press release.

The company did not provide any details on the type of cybersecurity incident and whether or not it was a ransomware attack that affected its systems.

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Petro-Canada systems down

Petro-Canada, a subsidiary of Suncor that operates more than 1,500 gas stations across Canada, also announced that it was facing problems.

In a post on Twitter, the company notified customers that they are currently unable to log into their accounts through the app or website and apologized for the inconvenience. This breakdown also prevents earning points when refueling at company service stations.

However, the situation looks much worse than the short notice presents.

Since last Friday, many people have reported on Twitter that’s all currently not possible to pay with credit/debit cards at Petro-Canada stations, leaving cash as the only option.

Petro-Canada’s technical problems have also stop holders of the “Carwash Season Pass” to use their privileges in the company’s washing centers, which demand refunds for their subscriptions.

BleepingComputer has contacted Suncor Energy and Petro-Canada to request more information about the cybersecurity incident and reported service outages, and we will update this post as soon as we hear back.