TC Energy

Calgary-based pipeline operator (formerly TransCanada). Its US subsidiary Columbia Gas Transmission runs the Mountaineer XPress system; it co-owns and operates Coastal GasLink, the feed line to LNG Canada, whose Phase 2 compression expansion it confirmed on September 29, 2026.

Record verified 30 Sep 2026 against agent research 2026-09-30 (TC Energy news release, 2026-09-29). Tracked since 2026-09.