Looking at past expense receipts I have on hand at the moment.

Jan 16th: $1.16 per litre ($5.19 per gallon)

Jan 29th: $1.20 per litre ($5.46 per gallon)

Feb 27th: $1.27 per litre ($5.78 per gallon)

Today's pump price: $1.31 per litre ($5.96 per gallon)

Price increase per gallon in 6 weeks: .77 cents.
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.

John Lubbock