NATGAS PIPELINE CRITICAL NOTICE: Natural Gas Pipeline CURRENT PIPELINE CONDITIONS

( This is the verbatim text of a critical notification provided by the pipeline operator to its shippers. The information has not been independently verified. This item may be followed by a news story depending on the severity of the incident's impact, if any, on operations. )) Company Name: Natural Gas Pipeline Notice Type Description: PIPELINE CONDITIONS Posted Date: 9/18/2026 Effective Date: 09/18/2026 End Date: 09/19/2026 Posting Text: CURRENT PIPELINE CONDITIONS The following informationsummarizes operating conditions and scheduling restrictions on Natural's systemeffective for gas day Saturday, September 19, 2026. This summary ofinformation is updated once a day and may not provide up-to-the-minutestatistics. Accordingly, when making or confirming transactions, pleaserefer to individual notices for the latest scheduling restrictions and servicesavailability on Natural's system. If you have any questions, please callyour Account Director or Scheduling Representative. Transportation Amarillo Affectedareas: Segments 33 & 36 AffectedArea — Operating Capacity Available AMARILLO SEGMENTCONSTRAINTS: (Transportsassociated with Storage may be impacted in areas with constrai