A bid may be received by transporter.Logical formLearned from2 sentences. Transporter may provide (replacement shipper) with a contract.Logical formLearned from2 sentences. A transporter may notify a complainant.Logical formLearned from2 sentences. Natural gas may be delivered to transporter.Logical formLearned from2 sentences. Transporter can be in an amount.Logical formLearned from2 sentences. A (revenue commitment) can be to transporter.Logical formLearned from2 sentences. A (system operation) may pertain-to transporter.Logical formLearned from2 sentences. Bids may be ranked by transporter.Logical formLearned from2 sentences. A (reservoir integrity) may pertain-to transporter.Logical formLearned from2 sentences. Transporter can be in an agreement.Logical formLearned from2 sentences. (Capacity release mechanisms) may pertain-to transporter.Logical formLearned from2 sentences. A shipper may provide transporter with a guarantee.Logical formLearned from2 sentences. Transporter may make a representation to a party.Logical formLearned from2 sentences. (Design costs) may pertain-to transporter.Logical formLearned from2 sentences. Transporter may provide updates.Logical formLearned from2 sentences.