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.

The Towerbirch pipeline project will include 55 km of 36-inch pipeline paralleling the existing NGTL Groundbirch Mainline, along with new meter stations, and expansion of one meter station. The majority of this projects scope will be within British Comumbia, with only a portion in Alberta.

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.

In accordance with Certificate Condition 6 and Order Condition 7, NGTL encloses Commitment Tracking Table No. 5 for the Project. The reporting period for this submission is June 1, 2017 to June 29, 2017.

The 4,324-kilometre (2,687-mile) Keystone Pipeline System plays a key role in connecting Alberta crude oil supplies to U.S. refining markets in Illinois, Oklahoma and Texas, as well as connecting U.S. crude oil supplies from the Cushing, Okla., hub to refining markets in the U.S. Gulf Coast through our Marketlink Pipeline System.

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 September 15, 2016 to October 15, 2016.

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 October 15, 2016 to November 15, 2016.

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 December 15, 2016 to January 15, 2017.

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 third submission is May 15, 2015 to October 15, 2015.

The Canadian Mainline is 14,114 km (8,770 mile) in length and safely carries natural gas from the Western Canada Sedimentary Basin (WCSB) to Ontario and beyond. The map depicts the pipeline's northeastern section viewed in province of Ontario.