A method and system for regulating fuel transactions is provided. Fuel consumption data may be received corresponding to a first and second vehicle location. The difference between the first and second fuel consumption is determined to obtain an overall or combined fuel consumption value. In some examples, the fuel consumption data is transferred from a vehicle data system to a carrier data system located remotely from the vehicle. The data is processed at the carrier data system and the overall fuel consumption is transmitted to a fueling point to limit the amount of fuel transferred to the vehicle. In some arrangements, the limit may be adjusted to include additional factors such as additional distance to travel to the fueling point, anticipated distance to be traveled in subsequent legs of the trip, etc.