A sole gas producer owes a duty of care to business users to avoid property damage from negligent interruption of supply, but does not owe a duty of care to gas customers (business, domestic, or stood-down workers) to avoid purely economic loss. The contractual matrix between producer, wholesaler, and retailer, the comprehensive statutory regime, and the ability of gas customers to assess and insure against their own losses are salient features negating a duty to avoid purely economic loss. Expert economic evidence on loss allocation theory is of limited utility to courts determining duty of care questions.
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