n accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is June 16, 2017 to July 15, 2017.

HOUSTON, Texas – March 1, 2019 – News Release – TransCanada Corporation (TSX: TRP) (NYSE: TRP) (TransCanada) today announced the Federal Energy Regulatory Commission (FERC) has approved the full in-service of its Mountaineer XPress (MXP) project, allowing the company to increase the flow of gas on MXP and begin operating its Gulf XPress (GXP) project.

In accordance with Certificate Condition 21 and Condition 5 of the Order, NGTL encloses the Commitment Tracking Table for the Project. The reporting period for this submission is May 15, 2017 to June 15, 2017.