Transporter may allow a trading of imbalances.Logical formLearned from2 sentences. (Receipt points) can be on transporter.Logical formLearned from2 sentences. Transporter may fail.Logical formLearned from2 sentences. Transporter may account for a purchase of a quantity of gas.Logical formLearned from2 sentences. Transporter may provide customer with locations.Logical formLearned from2 sentences. Transporter may take title.Logical formLearned from2 sentences. A (fuel requirement mechanism) may pertain-to transporter.Logical formLearned from2 sentences. Gas may be parked with transporter.Logical formLearned from2 sentences. A difference can be between a quantity of (gas transporter).Logical formLearned from2 sentences. (Gas transporter) may be authorised for delivery.Logical formLearned from2 sentences. Some changes may be accepted by transporter.Logical formLearned from2 sentences. An offer may be presented by transporter.Logical formLearned from2 sentences. Transporter may bill a (replacement shipper).Logical formLearned from2 sentences. Amendments can be with transporter.Logical formLearned from2 sentences. Some requests may be handled by transporter.Logical formLearned from2 sentences.