This study has conducted an OLS-regression to examine the relationship between gasoline and crude oil prices in the Swedish petroleum market, focusing on potential asymmetry, where gasoline prices respond more quickly to increases in crude oil prices compared to decreases. Additionally, we examine the impact of individual petroleum stations' competitiveness on this asymmetry, applying the distance to the nearest station as a measure of competitiveness. To explore this relationship, we utilise two datasets: one comprises unique user-generated data for individual gas stations spanning the period from 2019 to 2022, while the other includes recommended prices covering the period from 2001 to 2020. The findings provide some evidence supporting the existence of asymmetry, indicating the presence of inefficiencies within the market. However, no evidence suggesting larger asymmetry concerning individual competitiveness was discovered. Overall, this research offers novel insights into the dynamics of the Swedish fuel market in recent years.