TSP Name: Northern Natural Gas Company TSP: 784158214 Notice ID: 107243 Notice Type: Other Subject: CARLTON REIMBURSEMENT Critical: N Post Date/Time: 05/28/2026 08:36 AM Notice Status: Initiate For Gas Day(s): 05/27/2026 - 07/01/2026 Notice Effective Date/Time: 05/28/2026 08:35 AM Notice End Date/Time: 07/01/2026 05:00 PM Required Response Indicator Description: 5-No response required Notice Text: The reimbursement for the Carlton buyout, Carlton commodity surcharge and non-performance penalties collected November 2025 through March 2026 will be included in the Market Area customers' May 2026 reservation invoice. Carlton Resolution schedules showing the allocation of the reimbursement by flow obligation are available on the Carlton Resolutionweb page. This information is included in Northern's refund report to be filed with the Commission on June 1, 2026. Please contact your customer service or marketing representative with any questions regarding this reimbursement.