Sustainability Performance Data

Greenhouse Gas (GHG) Emissions (Scope 1 and 2)₁

Total GHG Emissions

GHG emissions data are calculated based on the American Petroleum Institute (API) Compendium (2009) and the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report as quantification references. PETRONAS aims to enhance its quantification methods to better align with national reporting requirements, taking into account the significant emissions within the region.

Notes:

1. Covers both Malaysia and international operations.

2. PETRONAS acquired BRB International B.V. and Perstorp Holding AB in 2022. Their GHG accounting systems are currently undergoing an alignment process with PETRONAS' GHG accounting and reporting requirements. The figures above do not include emissions from BRB and Perstorp, which was 0.39 million tonnes CO₂e for 2024.

3. Corporate and Others include KLCC Group of Companies.

Scope 1

Scope 1

Greenhouse Gas (GHG) Emissions (Scope 1 and 2)

Scope 2

Notes:

1. Other GHG sources include emissions from activities such as acid gas removal, glycol dehydrator, mobile and transportation, refrigerant and others.

Scope 1: Direct emissions from company-owned or controlled facilities and operations.
Scope 2: Indirect emissions from energy we purchase.
Detailed breakdown may not add up to total due to rounding.

GHG Intensity by Business Segments₁

Upstream

Total

Malaysia Assets

International Assets

Gas and Maritime

LNG (PLC and PFLNG)

Downstream₂

Refineries

Petrochemicals

Notes:

1. Numerator for GHG intensity is a summation of Scope 1 and Scope 2 GHG emissions under the operational control approach. All GHG intensity figures include carbon dioxide, methane and nitrous oxide emissions expressed in total tonnes CO₂e.

2. Boundary for Downstream GHG Intensity is Malaysia operations only.

A barrel of oil equivalent (BOE) is a unit of energy measurement used to standardise and compare the energy content of different energy sources, such as oil, natural gas and coal, by equating them to the energy contained in one barrel of crude oil.

Methane Emissions

(Excludes Maritime, Corporate and Others)

PETRONAS Core Business

Combustion

Flare

Vent

Fugitive Emissions

Others

Greenhouse Gas (GHG) Emissions

Total GHG Emissions

Notes:

PETRONAS Groupwide GHG emissions based on Equity Share approach Scope 1 and Scope 2 for 2019 (baseline year) was readjusted post external verification from 54.25 million tonnes CO₂e to 52.67 million tonnes CO₂e.

Total GHG Emissions (Scope 1 and 2)

Scope 1

Scope 2

PETRONAS Core Business makes up 95 per cent of total Groupwide GHG emissions Scope 1 and 2 based on Equity Share approach, where Malaysia operations contribute to 91 per cent and International operations contribute to 9 per cent of the emissions.

Notes:

PETRONAS Groupwide GHG emissions, for Equity Share approach Scope 1 and Scope 2 for 2019 (baseline year), was readjusted post external verification from 54.25 million tonnes CO₂e to 52.67 million tonnes CO₂e.

Scope 3₁

Operational Control

Category 1:

Equity Share

Notes:

1. PETRONAS' Scope 3 materiality assessment is guided by GHG Protocol, Ipieca and benchmarking with peers. Based on the assessment, Category 11 and Category 1 are the material Scope 3 categories for PETRONAS.

2. Quantification for Category 1 emissions began in 2023 using data from 2022 onwards.

3. Category 11 only includes emissions associated with fuel products sold to third parties. All fuel products sold are assumed to be fully combusted.

4. Scope 3 (Category 11: Use of Sold products) emissions for 2019-2023 have been restated following external GHG verification conducted by LRQA Inspection Malaysia Sdn Bhd

Total Energy Consumption₁

PETRONAS

Notes:

1. Covers both Malaysia and international operations

2. PETRONAS acquired BRB and Perstorp in 2022. Their energy accounting systems are currently undergoing an alignment process with PETRONAS' energy accounting and reporting requirements. The figures above exclude energy consumption from BRB and Perstorp.

3. Corporate and Others include KLCC Group of Companies. The energy consumption for KLCC Group of Companies does not account for inter-company transfers of chilled water.

Energy Intensity₁ by Business

Upstream

Gas and Maritime

Downstream₂

Notes:

1. Energy Intensity is calculated as total energy consumption over total production or throughput.

2. Boundary for Downstream Energy Intensity is Malaysia operations only

Freshwater Withdrawal

PETRONAS₁

Effluents

Air Emissions

Total Sulphur Oxides Emissions

Total Nitrogen Oxides Emissions₂

Spillage

Number of Hydrocarbon Spills into the Environment over One Barrel₃

Waste

Total Hazardous Waste Generated₄

Malaysia

International

Total Hazardous Waste Sent for Reuse, Recycling and Recovery (3R)

Malaysia

International

Total Hazardous Waste Disposed

Malaysia

International

Notes:

1. The increase in freshwater withdrawal by 4 per cent from 79.2 to 82.6 mil m³ is due to an increase in industrial activity by the Pengerang Integrated Complex

2. Nitrogen oxide emissions decreased to 92,017 tonnes in 2024 from 101,695 tonnes in 2023 mainly due to lower fuel gas consumption from our maritime operations.

3. The increase in number of hydrocarbon spills over one barrel is due to factors involving operational handling, connection issues and breaches in secondary containment.

4. The increase in waste disposal is attributed to the host country's requirements and the limited 3R facilities in the selected international operations.