Decommissioning and associated environmental remediation projects
Measurement answer
What this metric measures
Reports the total number of decommissioning projects and associated environmental remediation initiatives undertaken.
Specification
Metric specification
- Result format
- Single value
- Unit
- number of projects or initiatives — source-defined reporting unit
- Reporting basis
- Not specified in extracted source
- Aggregation
- Total count of decommissioning projects and associated environmental remediation initiatives undertaken
- Pillar
- Environmental
- Topic
- Pollution and pollution removal
- Controlled domain
- Pollution
- Entity type
- Metric
Reporting boundary
Decommissioning projects undertaken by the reporting organisation and environmental remediation initiatives associated with those projects
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- Oil and Gas sector guidance, Table 13, p. 70, Impact driver / Pollution/pollution removal, Metric no. OG.A2.1 | Source specification: report the total number of decommissioning projects and any associated environmental remediation initiatives undertaken. | Page 70, Table 13, Impact driver / Pollution/pollution removal, Metric no. OG.A2.1
- Adopting DisclosureOG.A2.1
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, June 2024
- Requirement
- Recommended
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 70, Table 13, Impact driver / Pollution/pollution removal, Metric no. OG.A2.1
Value structure
Dimensions and units
- Unit
- number of projects or initiatives — source-defined reporting unit
- Reporting basis
- Not specified in extracted source
Unit meaning: Values use number of projects or initiatives under the disclosed TNFD sector-guidance method, reporting period and boundary.
Published dimensions
- Sector: Oil and Gas
- Official metric code: OG.A2.1
- Impact-driver category: Pollution/pollution removal
- Activity type: decommissioning project or associated environmental remediation initiative
Calculation method
Formula information
- Status
- Specified
- Formula type
- Count
Formula
N_projects = COUNT(decommissioning projects undertaken and associated environmental remediation initiatives undertaken, using the disclosed counting and double-counting rule).Apply the source-defined TNFD sector-guidance method within the stated reporting boundary. OG.A2.1 specifies a reportable quantity of projects and associated initiatives. It is distinct from remediation expenditure, provisions, avoided emissions and restoration costs in the existing shortlist; method disclosures preserve the source's unresolved counting relationship between projects and initiatives.
Variables
| Symbol | Variable | Definition | Unit |
|---|---|---|---|
N_projects | Decommissioning and associated remediation projects | Count of in-scope decommissioning projects and associated environmental remediation initiatives undertaken. | number of projects or initiatives |
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- Oil and Gas sector guidance, Table 13, p. 70, Impact driver / Pollution/pollution removal, Metric no. OG.A2.1 | Source specification: report the total number of decommissioning projects and any associated environmental remediation initiatives undertaken. | Page 70, Table 13, Impact driver / Pollution/pollution removal, Metric no. OG.A2.1
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Decommissioning and associated environmental remediation projects”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- State whether the reported total combines decommissioning projects and associated remediation initiatives or reports them as separate components.
- Describe the rule used to prevent double counting of remediation initiatives associated with a decommissioning project.
- Define what qualifies as an undertaken project or initiative, including treatment of ongoing and completed work.
- State the geographic, operational and reporting-period boundary.
Record-specific limitations
- The extracted source does not state whether decommissioning projects and associated remediation initiatives are to be counted jointly, separately, or without double counting where one project contains multiple initiatives.
- The extracted source does not specify the reporting period, geographic coverage, project-completion criterion, or treatment of ongoing projects.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.