Northern has scheduled the planned service outages that will affect operating capacity within the months of February through October 2019. Please review the Planned Service Outage Summary for detailed information related to each outage, including the impacted allocation group(s) and/or point(s), direction of flow, normal operating capacity, estimated daily operating capacity during the outage and the anticipated impact to primary firm service.

The dates indicated are the anticipated days for the maintenance and modifications to be performed and completed. Northern will provide further updates to this notice if circumstances change. Customers are urged to monitor the Planned Service Outage Summary to access the most current information.

A brief description of the most recent change(s) to the Planned Service Outage Summary follows:

Non-critical notice #044967: Hobbs to Plains ILI Report – February 2019 has been terminated effective February 21, 2019.

Northern received a favorable preliminary report on the in-line inspection completed on its section of pipeline located near the Plains, Texas compressor station. Therefore, no immediate pipeline remediation is necessary at this time. As a result, Northern will be returning to normal operating capacity levels beginning with the Intraday 2 cycle for Gas Day February 21, 2019.