You may have noticed gas prices have been on the rise recently.

This is because of a rare attack on a major oil producer.

An oil facility in Saudi Arabia was the target of drone attacks recently. While attacks on major oil producers are rare, events that cause prices to rise or fall, small or big, happen fairly often. Patrick DeHaan, with Gas Buddy, notes the US-China trade war as a reason for gas prices being lower than normal earlier this summer.

DeHaan expects gas prices to rise as much as 4-9 cents per litre.

That would mean prices reach $1.14 or $1.15 per litre and he predicts prices to stay there for about a week and a half.