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XRN 5236
Reporting Valid Confirmed Theft of Gas into Central Systems (Modification 0734)

This XRN is part of XRN 5556A New CMS Version 1
Last Updated
04 Oct 2023
Release Type
Implementation Date
01 Apr 2023
Proposer Gazprom Energy Impacted DSC service area


Not applicable

Customer Change Team Leader


Modification 0677R - Shipper and Supplier Theft of Gas Reporting Arrangements created a joint UNC and SPAA review group to review and identify any discrepancies in Shippers and Suppliers theft of gas reporting arrangements.


The Joint Theft Report Review (JTRR) identified several similar themes in the issues raised by SPAA and UNC parties one of which was that multiple reporting channels exist for Suppliers and Transporters. The group also identified clear evidence of a significant discrepancy between the number of confirmed thefts reported by Suppliers via TRAS and those reported by Shippers via the Contact Management Service (CMS) leading to confirmed theft data not entering Settlement. The group found that the parallel use of both TRAS and CMS to record conformed theft data was very likely to contribute to the discrepancy identified and cause uncertainty for market participants with regard to reporting obligations.


Based on the JTRR recommendations, Modification 0734 has been raised which seeks to ensure valid confirmed theft data received from Suppliers is reported into central systems. This suggests that the theft process should be updated to allow Suppliers (via TRAS) to provide confirmed theft data to the CDSP to be entered into Settlement, with the relevant Shipper being able to review and object to any volume that may be entered.


This Change Proposal has been raised to look at the options and make the required changes to the theft process to make it fit for purpose and ensure the most accurate information is being used in Settlement processes.

Impacted Customer Types

  • Shipper


Document title Comment Last updated CHMC outcome
Change Proposal N/A 25/09/2020 Approved into Capture 07/10/2020
Initial Review Stage not used N/A N/A
High Level Solution Options N/A 15/11/2021 Option 1 approved
Solution Review N/A  09/03/2022 Interim Solution Rejected 09/03/2022
Enduring Solution to be delivered with CMS 
Detailed Design Approved  15/08/2022 Approved at ChMC 10/08/2022
Evaluation Quotation Reports (EQR) N/A N/A N/A
Business Evaluation Reports (BER) N/A N/A N/A
Change Completion Reports (CCR) Stage not yet reached N/A N/A


Initial Review
Change Proposal Raised 23/09/20
Status Approved at ChMC 07/10/2020
Expected: 07/10/20
Status Approved to proceed into Capture at ChMC 07/10/2020
Solution Consultation
Solution rejected 09/03/22
Status Interim solution rejected at ChMC
Awaiting Delivery
Expected: 00/00/00
Status Stage not used
In Delivery
Enduring Solution to be delivered with CMS 09/03/22
Status Detailed Design Change Pack approved at ChMC 10/08/2022
Change has been delivered 01/04/23
Status Delivered

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