ACR Plugging of Orphaned Oil and Gas (OOG) Wells

ACR Plugging of Orphaned Oil and Gas (OOG) Wells is a industrial & commercial methodology used by 8 projects. Registry records show 3,559,187 tonnes issued and 28.5% of them retired.

Key figures

Projects

8

Countries

2

Credits issued

3,559,187 t

Credits retired

1,015,942 t

Retired share of issued

28.5%

Projects yet to issue

0%

Source: Berkeley Voluntary Registry Offsets Database, as used by the Methodology Lab · Data as of June 2026

ICVCM status

No ICVCM decision on this methodology yet.

The CCP label is applied to credits by the registry, issuance by issuance. An approved methodology means credits from projects using it can be eligible; it does not mean every credit carries the label.

What this means

CORSIA programme relevance

Whether the programmes this methodology is used on are approved by ICAO. Programme level only; unit eligibility depends on dates, authorisation and each programme's exclusions.

What this means

Issuance by vintage

Vintage	Issued (tCO₂e)
2025	92,956
2024	1,420,063
2023	2,046,168

Source: Berkeley Voluntary Registry Offsets Database · Data as of June 2026

Related methodologies

Same scope, with a more favourable ICVCM decision.

ACM0008 Abatement of methane from coal mines 79 projects · Under assessment, no decision published
AM0023 Leak detection and repair in gas production, processing, transmission, storage and distribution systems and in refinery facilities 11 projects · Under assessment, no decision published
ACM0012 Waste energy recovery 39 projects · Very unlikely to meet the Core Carbon Principles
AMS-III.Q. Waste energy recovery 11 projects · Very unlikely to meet the Core Carbon Principles

Questions about ACR Plugging of Orphaned Oil and Gas (OOG) Wells

How many projects use ACR Plugging of Orphaned Oil and Gas (OOG) Wells?

8 projects, in 2 countries, as of June 2026.

Is ACR Plugging of Orphaned Oil and Gas (OOG) Wells approved by the ICVCM?