Performance Data

Climate

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Climate
Greenhouse Gas Emissions (GHGs)
102-5 Scope 1 GHG Emissions 11.1.5 GHG Emissions	Gross scope 1 GHG emissions	Tonnes CO₂e ^{(note 1)}	828,014	733,330	642,686
	Gross scope 1 GHG emissions	% covered under emissions-limiting regulations ^{(note 2)}	0	0	0
	– Stationary combustion emissions	Tonnes CO₂e	209,360	223,842	225,888
	– Mobile combustion (e.g. vessels, helicopter, company cars)	Tonnes CO₂e	58,618	53,443	50,797
	– Process emissions (Flaring+Venting)	Tonnes CO₂e	544,898	438,446	348,859
	– Fugitive emissions	Tonnes CO₂e	15,549	17,599	17,142
	Methane (CH₄)	Tonnes CH₄	13,892	9,856	6,697
	Methane (CH₄)	% of gross direct (Scope 1) GHG emissions	48.9	39.95	30.92
	– Stationary combustion emissions	% of CH₄	0.02	0.03	0.03
	– Mobile combustion emissions (e.g. vessels, helicopter, company cars)	% of CH₄	0.02	0.02	0.02
	– Process emissions	% of CH₄	48.00	37.70	28.35
	– Flaring	% of CH₄	0.90	0.90	1.27
	– Venting	% of CH₄	47.10	36.80	27.08
	– Fugitive emissions	% of CH₄	1.88	2.19	2.51
102-6 Scope 2 GHG Emissions GHG emissions	Gross location-based scope 2 GHG emissions	Tonnes CO₂e ^{(note 1)}	290.25	298.36	252.81
102-8 GHG emissions intensity	GHG emissions intensity ratio (including scope 1 and 2 GHG emissions)	Tonnes CO₂e/mboe	100.07	80.58	69.76
305-5 Reduction of GHG emissions	Reductions in GHG emissions as a direct result of reduction initiatives	Tonnes CO₂e	1,443	13,845	27,301

Environment

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Environment
Environmental Policy & Management
	Number of environmental violation cases	Case	0	0	0
Energy Management
103-2 Energy consumption and self-generation within the organisation	Total energy consumption	GJ	2,608,912	2,862,401	2,504,251
	Total fuel consumption ^{(note 2)}	GJ	2,606,822	2,860,252	2,502,335
	– Total non-renewable fuel	GJ	2,606,822	2,860,252	2,502,335
	Total self-generated energy consumption ^{(note 2)}	GJ	459,521	529,790	580,806
	– Non-renewable self-generated energy ^{(note 2)}	GJ	459,521	529,790	580,806
103-4 Energy intensity	Energy intensity ratio (covering fuel and electricity consumption within the organisation)	GJ/kboe	315	314	272
103-5 Reduction in energy consumption	Reductions in energy consumption from energy conservation and efficiency initiatives	GJ	20,405	117,458	172,820
Water Management
303-3 Water withdrawal	Total water withdrawal from all areas	Megaliter	87.94	79.73	101.79
	– Seawater	Megaliter	27.02	39.26	35.70
	– Third-party water	Megaliter	60.92	40.48	66.09
303-4 Water discharge 11.6.5 Water and effluents	Total water discharge to all areas	Megaliter	67.57	68.24	77.00
	– Seawater	Megaliter	13.54	32.24	35.48
	– Third-party water	Megaliter	54.03	36.00	41.52
303-5 Water consumption	Total water consumption	Megaliter	20.37	11.50	24.79
303-5 Water consumption	Total water consumption from all areas with water stress	Megaliter	0	0	0
–	Produced water generated	BBLs	82,548,451	90,413,930	97,575,668
	Produced water discharged	BBLs	0	0	0
	Produced water discharged	% out of produced water generated	0	0	0
	Produced water injected	BBLs	82,488,365	90,584,155	97,705,640
	Produced water injected	% out of produced water generated	100	100	100
	Produced water recycled	BBLs	0	0	0
	Produced water recycled	% out of produced water generated	0	0	0
Biodiversity & Conservation
304-1 Operational sites owned, leased, managed in, or adjacent to protected areas and areas of high biodiversity value outside protected areas	Total sites used for operational activities	Numbers	4	4	4
	Total sites used for operational activities	Area (km²)	33.29	33.29	33.29
	Total sites conducted biodiversity impact assessment ^{(note 2)}	Numbers	4	4	4
		Area (km²)	33.29	33.29	33.29
Waste Management
306-3 Waste generated	Total waste generated	Tonnes	11,082.28	13,235.88	14,430.76
	– Hazardous waste	Tonnes	366.33	227.80	235.61
	– Non-hazardous waste	Tonnes	10,715.95	13,008.08	14,195.16
306-4 Waste diverted from disposal	Total waste diverted from disposal	Tonnes	76.44	78.39	150.61
	– Hazardous waste diverted from disposal offsite	Tonnes	49.37	26.38	94.04
	– Non-hazardous waste diverted from disposal offsite	Tonnes	27.07	52.01	56.57
306-5 Waste directed to disposal	Total waste directed to disposal	Tonnes	11,005.84	13,157.49	14,280.15
	– Hazardous waste directed to disposal onsite	Tonnes	0	0	0
	– Hazardous waste directed to disposal offsite	Tonnes	316.96	201.42	141.57
	– Incineration (with energy recovery)	Tonnes	296.57	199.25	79.73
	– Other disposal operations	Tonnes	20.40	0.71	5.92
	– Non-hazardous waste directed to disposal onsite	Tonnes	10,429.09	12,660.57	13,824.02
	– Other disposal operations	Tonnes	10,429.09	12,660.57	13,824.02
	– Non-hazardous waste directed to disposal offsite	Tonnes	259.79	295.50	314.56
	– Landfilling	Tonnes	259.79	295.50	161.86
11.5.4 Reporting the composition of the waste generated, include a breakdown into drilling waste, scale and sludges and tailings. 11.5.5 Reporting the composition of the waste diverted from disposal, include a breakdown into drilling waste, scale and sludges and tailings. 11.5.6 Reporting the composition of the waste directed to disposal include a breakdown into drilling waste, scale and sludges and tailings.	Drilling waste (muds and cuttings)
	– Generated	Tonnes	10,429.88	12,661.05	13,824.02
	– Directed to disposal – Onsite	Tonnes	10,428.97	12,660.57	13,824.02
	– Directed to disposal – Offsite	Tonnes	0.91	0.48	0.00
	Scale and sludges waste
	– Generated	Tonnes	249.09	124.82	44.28
	– Directed to disposal	Tonnes	249.09	124.82	44.28
Spill Management
306-3 Significant Spills 11.8.2 For each significant spill, report the cause of the spill and the volume of spill recovered.	Total number and volume of significant spills	Numbers	0	0	0
	Total number and volume of significant spills	m³	0	0	0

Health and Safety

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Health and Safety
Health and Safety
403-8 Workers covered by an occupational health and safety management system	Occupational health and safety management system
	– Employees coverage	Persons	195	189	209
	– Employees coverage	Percentage (%)	100	100	100
	– Contractors coverage	Persons	760	1,364	1,239
	– Contractors coverage	Percentage (%)	100	100	100
	Occupational health and safety management system that has been internally audited
	– Employees coverage	Persons	195	189	209
	– Employees coverage	Percentage (%)	100	100	100
	– Contractors coverage	Persons	760	1,364	1,239
	– Contractors coverage	Percentage (%)	100	100	100
	Occupational health and safety management system that has been certified by an external party
	– Employees coverage	Persons	195	189	209
	– Employees coverage	Percentage (%)	100	100	100
	– Contractors coverage	Persons	760	1,364	1,239
	– Contractors coverage	Percentage (%)	100	100	100
403-9 Work-related injuries	Total number of hours worked		3,330,056	2,927,881	3,373,040
	– Employees	Hours	432,372	333,795	319,315
	– Contractors	Hours	2,897,684	2,594,086	3,053,725
	Total fatalities from work-related injuries	Cases	0	0	0
	Total of high-consequence work-related injuries	Cases	0	0	0
	Total recordable work-related injuries	Cases	2	3	3
	– Employees	Cases	0	0	0
	– Employees	Cases/1 million hours worked	0	0	0
	– Contractors	Cases	2	3	3
	– Contractors	Cases/1 million hours worked	0.69	1.16	0.98
	Lost-Time Injury Frequency Rate (LTIFR)	Cases/200,000 hours worked	0.06	0	0
	– Employees	Cases/200,000 hours worked	0	0	0
	– Contractors	Cases/200,000 hours worked	0.07	0	0
	Total Recordable Injury Frequency Rate (TRIFR)	Cases/200,000 hours worked	0.12	0.20	0.18
	– Employees	Cases/200,000 hours worked	0	0	0
	– Contractors	Cases/200,000 hours worked	0.14	0.20	0.20
403-1 Work-related ill health	Total fatalities from work-related ill health	Cases	0	0	0

Risk Management

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Risk Management
Asset Integrity Management
11.8.3 Report the total number of Tier 1 and Tier 2 process safety events, and a breakdown of this total by business activity.	Total number of Tier-1 and Tier-2 process safety incidents	Cases	0	0	0

Workforce Management

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Workforce Management
Workforce Management
2-7 Employees	Total workforce	Persons	213	208	216
	Total number of employees	Persons	195	189	209
	– Male ^{(note 2)}	Persons	103	95	104
	– Male ^{(note 2)}	%	53	50	50
	– Female ^{(note 2)}	Persons	92	94	105
	– Female ^{(note 2)}	%	47	50	50
2-8 Workers who are not employees	Total numbers of contractors	Persons	18	19	7
Employee Attraction and Retention
401-1 New employee hires and employee turnover	Total numbers and rate of new employee hires	Persons	11	11	23
401-1 New employee hires and employee turnover	Total numbers and rate of new employee hires	% of total number of employees	6	6	11
401-1 New employee hires and employee turnover	Total number and rate of employee turnover	Persons	16	18	3
401-1 New employee hires and employee turnover	Total number and rate of employee turnover	% of total number of employees	8	10	1.44
Parental Leave
401-3 Parental leave	Employees that are entitled to parental leave	%	100	100	100
401-3 Parental leave	Parental leave return to work rate	%	100	100	100
Human Capital Development
404-1 Average hours of training per year per employee	Average hours of training for employees	Hours/Person	18	23	21
404-3 Percentage of employees receiving regular performance and career development reviews	Percentage of employees that received regular performance and career development review	%	100	100	100
Diversity, Equity and Inclusion
405-1 Diversity of governance bodies and employees	Employees in executive and management positions	Persons	88	83	93
	– Male	%	76	75	74
	– Female	%	24	25	26
	– Under 30 years old	%	0	0	0
	– 30 – 50 years old	%	70	71	69
	– Over 50 years old	%	30	29	31
	Employees in non-management positions	Persons	107	106	116
	– Male	%	34	31	35
	– Female	%	66	69	65
	– Under 30 years old	%	1	3	3
	– 30 – 50 years old	%	89	90	89
	– Over 50 years old	%	10	8	9
405-2 Ratio of basic salary and remuneration of women to men	Ratio of compensation of female to male employees in executive and management positions
	– Basic salary	–	1.07 : 1	0.94 : 1	0.92 : 1
	– Basic salary and cash bonus	–	1.09 : 1	0.88 : 1	0.85 : 1
	Data Coverage (as a % of FTEs) ^{(note 2)}	%	100	100	100
	Ratio of compensation of female to male employees in non-management positions
	– Basic salary	–	0.77 : 1	0.86 : 1	0.83 : 1
	– Basic salary and cash bonus	–	0.74 : 1	0.86 : 1	0.84 : 1
	Data Coverage (as a % of FTEs) ^{(note 2)}	%	100	100	100
202-2 Proportion of senior management hired from the local community	Percentage of employees in executive positions from local employment ^{(note 3)}	%	67	65	57
	Percentage of employees from local employment	%	95	96	93

Corporate Citizenship

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Corporate Citizenship
Corporate Citizenship
413-1 Operations with local community engagement, impact assessments, and development programmes	Percentage of operations with implemented local community engagement	Percentage (%)	100	100	100
	Percentage of operations with social impact assessment	Percentage (%)	100	100	100
	Percentage of operations with environmental impact assessment	Percentage (%)	100	100	100
	Percentage of operations with public disclosure of social and environmental impact assessments	Percentage (%)	100	100	100
	Percentage of operations with local community development programmes based on local communities’ needs	Percentage (%)	100	100	100
	Percentage of operations with local community development programmes with stakeholder engagement plans	Percentage (%)	100	100	100
	Percentage of operations with local community consultation committees that include vulnerable groups	Percentage (%)	0	0	0
	Percentage of operations with occupational health and safety committees to deal with impacts	Percentage (%)	100	100	100
	Percentage of operations with formal local community grievance processes	Percentage (%)	100	100	100
11.15.4 Local Communities	Total number of grievances from local communities	Numbers	0	0	0
	Security, Human rights & Rights of Indigenous Peoples
	Percentage of proved reserves in or near areas of conflict	Percentage (%)	0	0	0
	Percentage of probable reserves in or near areas of conflict	Percentage (%)	0	0	0
	Percentage of proved reserves in or near indigenous land	Percentage (%)	0	0	0
	Percentage of probable reserves in or near indigenous land	Percentage (%)	0	0	0	0

Corporate Governance and Business Ethics

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Corporate Governance and Business Ethics
Corporate Governance and Business Ethics
2-27 Compliance with laws and regulations	Total number of significant instances of non-compliance with laws and regulations	Cases	0	0	0
	– Instances for which fines were incurred	Cases	0	0	0
	– Instances for which non-monetary sanctions were incurred	Cases	0	0	0
	Total fines for instances of non-compliance with laws and regulations	USD	0	0	0
205-1 Operations assessed for risks related to corruption	Operations assessed for risks related to corruption	Number	213	208	216
205-1 Operations assessed for risks related to corruption	Operations assessed for risks related to corruption	%	100	100	100
205-2 Communication and training about anti-corruption policies and procedures	Total governance body members that the anti-corruption policies and procedures have been communicated to	Persons	11	11	11
	Total employees that the anti-corruption policies and procedures have been communicated to	Persons	195	189	209
	“Broken down by employee category: – Executives and management”	Persons	88	83	93
		%	100	100	100
	– Non-management	Persons	107	106	116
	– Non-management	%	100	100	100
	Total business partners (contractor) that the anti-corruption policies and procedures have been communicated to	%	100	100	100
205-3 Confirmed incidents of corruption and actions taken	Total number of confirmed cases of corruption and bribery	Cases	0	0	0
	Total number of confirmed incidents in which employees were dismissed or disciplined for corruption	Cases	0	0	0
	Total number of confirmed incidents when contracts with business partners were terminated or not renewed due to violations related to corruption	Cases	0	0	0
206-1 Legal actions for anti-competitive behavior, anti-trust, and monopoly practices	Pending legal cases of anti-competitive behavior and violations of anti-trust laws	Cases	0	0	0

Data Privacy

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Data Privacy
Data Privacy
418-1 Substantiated complaints concerning breaches of customer privacy and losses of customer data	Total number of substantiated complaints on breaches of customer privacy	Cases	0	0	0
	– Complaints received from outside parties	Cases	0	0	0
	– Complaints received from regulatory bodies	Cases	0	0	0
	Total number of identified leaks, thefts, or losses of customer data	Cases	0	0	0

Supply Chain

GRI Standards	Indicator	Unit	2023	2024	2025
Topic: Supply Chain
Supply Chain Management
204-1 Proportion of spending on local suppliers	Total number of suppliers	Numbers	342	401	410
	– Local suppliers (Thailand)	Numbers	280	314	306
	– Local suppliers (Thailand)	% of procurement spending	43	41	42
	– International suppliers	Numbers	62	87	104
	– International suppliers	% of procurement spending	57	59	58
308-1 New suppliers that were screened using environmental criteria	New suppliers screening using environmental criteria	% of total new suppliers	100	100	100
308-2 Negative environmental impacts in the supply chain and actions taken	Total new suppliers assessed for environmental impacts	% of total suppliers	100	100	100
	– Identified as having significant actual/potential negative environmental impacts ^{(note 4)}	Numbers	11	61	11
		% of total suppliers	3	15	3
	– with improvements were agreed upon as a result of assessment	Numbers	11	61	11
		% of total suppliers	100	100	100
	– with relationship being terminated as a result of assessment	Numbers	0	1	0
		% of total suppliers	0	0.25	0
414-1 New suppliers that were screened using social criteria	New suppliers screening using social criteria	% of total new suppliers	100	100	100
414-2 Negative social impacts in the supply chain and actions taken	Total new suppliers assessed for social impacts	Numbers	100	100	100
	– Identified as having significant actual/potential negative social impacts ^{(note 4)}	Numbers	24	61	11
		% of total current suppliers	7	15	3
	– with improvements were agreed upon as a result of assessment	Numbers	24	61	11
		% of total suppliers	100	100	100
	– with relationship being terminated as a result of assessment	Numbers	0	1	0
		% of total suppliers	0	0.25	0

Note 1: GHG calculations for 2023-2025 use IPCC AR6 GWP values. the 2025 figure applies new emission factors released by TGO in February 2026.

Note 2: Measure was introduced in 2025, with retrospective data reported for 2023 and 2024.

Note 3: Adjusted for 2023 and 2024.

Note 4: 2025 figure is based on the new contractor management standard introduced in 2025, while 2023 and 2024 data remain unchanged (in accordance with the contractor management standard in place at that time)

Sustainability

Climate

Environment

Health and Safety

Risk Management

Workforce Management

Corporate Citizenship

Corporate Governance and Business Ethics

Data Privacy

Supply Chain

Note 1: GHG calculations for 2023-2025 use IPCC AR6 GWP values. the 2025 figure applies new emission factors released by TGO in February 2026.

Note 2: Measure was introduced in 2025, with retrospective data reported for 2023 and 2024.

Note 3: Adjusted for 2023 and 2024.

Note 4: 2025 figure is based on the new contractor management standard introduced in 2025, while 2023 and 2024 data remain unchanged (in accordance with the contractor management standard in place at that time)