It's not uncommon to see significant variations in petrol prices, even within relatively small geographic areas. This can be due to a variety of factors, including:

　　Competition: Areas with more petrol stations or greater competition between suppliers may have lower prices as companies try to undercut each other.

　　Transport Costs: Petrol prices can be influenced by the cost of transporting fuel to different locations. Areas that are further away from refineries or distribution centers may have higher prices due to increased transport costs.

　　Local Taxes and Regulations: Local taxes and regulations can also impact petrol prices. For example, some areas may have higher fuel taxes, which can lead to higher pump prices.

　　Branding and Marketing: Some petrol stations may charge more due to their branding or marketing efforts. Premium brands, for example, may charge more for their fuel as part of their premium image.

　　Supply and Demand: Finally, petrol prices can also be influenced by supply and demand factors. Areas with high demand or limited supply may have higher prices as a result.

　　In terms of supermarkets, while they often offer competitive prices, this can vary depending on the location and local competition. It's always worth shopping around and comparing prices to find the best deal. Additionally, it's worth considering factors such as loyalty schemes or cashback offers that may help offset any price differences.