Based on the search results, the petrol price varies depending on the location, time of year, and political climate. The average petrol price in Georgia as of September 22, 2023, is $3.034 for regular, $3.478 for mid-grade, $3.865 for premium, and $4.109 for diesel. However, the petrol price can change daily, and the prices for regular, mid-grade, premium, and diesel can range from $3.246 to $4.558 depending on the county. The petrol price in New Hampshire as of September 19, 2023, is $3.524 for regular, $3.994 for mid-grade, $4.405 for premium, and $4.390 for diesel. The U.S. Energy Information Administration provides weekly updates on the petrol prices for different regions in the United States, and the prices can range from $3.364 to $4.912 depending on the region. Therefore, it is important to check the petrol prices regularly to know the current price in your area.