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XRN 4695
Investigating causes and contributors to levels and volatility of Unidentified Gas

Last Updated
30 Mar 2019
Release Type
Implementation Date
30 Mar 2019
Proposer Xoserve Impacted DSC service area

Service Area 3 (Previous Dec 18 – Mar 21)

Record/submit Data in Compliance with UNC

Customer Change Team Leader


This Change Proposal proposes to add an additional service line into the DSC to enable Xoserve access to investigate, using resources and technology, causes and contributors to levels and volatility of Unidentified Gas. Xoserve is to provide monthly update reports and recommend proposals and subsequent changes or modifications for the industry.

This service will be a Direct Service Non-code Service, under Service Area 3 Record, submit data in compliance with UNC.

The focus will be on the areas below:

- Cause and effect: Investigation of UIG to date to identify direct cause and effect. Development of a predictive model based on history to date, which can be shared with all interested parties. This will drive greater understanding, visibility and control of UIG across the industry.

- Improve UIG model accuracy: Assessment of whether it is possible to improve the predictive accuracy of the NDM Algorithm through additional inputs or increased number of profiles and the use of relevant technology.

- Personalised action plans (per customer): The development of specific actions plans for all customers who may be unknowingly contributing to UIG; that is helpful and supportive with increased pace of impact.

Impacted Customer Types

  • Shipper


Document title Last updated Type
XRN4695 (BER) 13/Mar/2019 PDF
XRN4695 CP 23/Jan/2019 PDF


Initial Review
Solution Consultation
Awaiting Delivery
In Delivery

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