What the analyser does
Current prices plus behaviour over time
The utility starts with current nearby prices, then adds station-level history for the forecourts you select. That allows it to compare today's cost and show whether pump-price movements have broadly followed Brent oil direction changes over the available history.
The oil-following score is directional. It is not a retailer-margin calculation, because TallyKind does not know each forecourt's wholesale contracts, delivery costs or stock position.