US convenience store operator 7-Eleven has reported a 2.1% rise in same-store merchandise sales in the US for February. The company said total sales for the month increased 16% year-on-year to US$797.6m, reported the Wall Street Journal. Sales of fuel rose 53% year-on-year to %264.6m, while the average retail price of petrol per gallon rose to $1.65 in February from $1.15 a year earlier.