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Reporting

Performance Summary
PRODUCTION Units 2023 2022 2021 2020 Notes
Production, annual average Boe/d  77,185  68,690  52,345 50,443 EM-EP-000.A
ENVIRONMENT Units 2023 2022 2021 2020
Consumption intensity GJ/Boe 0.20 0.21 0.26 0.25
Energy Consumption GJ 5,731,602 5,202,857 4,906,824 4,594,324
AIR QUALITY AND GHG EMISSIONS  Units 2023 2022 2021 2020
Scope 1 GHG emissions1 tonnes CO2e 319,098 292,872 277,146 331,043 EM-EP-110a.1, EM-MD-110a.1, GRI 305: Emissions 2016: Disclosure 305-1, Metrics & Targets B, S2-EM-EP-110a.1, S2-EM-MD-110a.1, S2.29, Topic 11.1.5: GHG emissions (GRI: 305-1)
Scope 1 GHG emissions intensity 1, 2 tonnes CO2e/Boe 0.0113 0.0117 0.0145 0.0179
Scope 2 GHG emissions 1 tonnes CO2e 74,429 91,509 92,890 94,812 GRI 305: Emissions 2016: Disclosure 305-2, Metrics & Targets B, S2.29, Topic 11.1.6: GHG emissions (GRI 305-2)
Scope 1 + 2 GHG emissions intensity 1, 3 tonnes CO2e/Boe 0.0140 0.0153 0.0194 0.0231
NOX emissions tonnes 527 459 426 420 EM-EP-120a.1, EM-MD-120a.1, GRI 305: Emissions 2016: Disclosure 305-7, Topic 11.3.2: Air emissions (GRI 305-7)
NOX emissions intensity tonnes NOx/Boe 0.00005 0.00002 0.00002 0.00002
SO2 emissions tonnes 1,281 980 797 832 EM-EP-110a.1
SO2 emissions intensity tonnes SOx/Boe 0.00002 0.00004 0.00004 0.00005
Total gas flared1  103m3 11,028 11,024 9,605 9,777 EM-EP-110a.2, S2-EM-EP-110a.2
Total gas flared emission intensity1 103m3/Boe 0.00039 0.00043 0.0005 0.00053
Total methane vented (t) 1,4 tonnes CH4 409 608 910 885
Total methane vented emission intensity (t/Boe) t CH4/Boe 0.000015 0.000024 0.000048 0.000048
Total methane emissions (t) 5 tonnes CH4 2,165 2,209 2,334 4,724
Total methane emissions intensity (t/Boe) t CH4/ Boe 0.000077 0.000088 0.000122 0.000257
WATER MANAGEMENT Units 2023 2022 2021 2020
Fresh water withdrwal 6 m3 1,192,849 1,561,295 1,119,002 723,021 EM-EP-140a.1
Fresh water consumed m3 1,300,693 1,262,938 1,130,325 NPT
Fresh water withdrawal from high-stress regions % 0 0 0 0
Groundwater withdrawal m3 609,627 488,638 427,290 99,706 EM-EP-140a.1
Surface water withdrawal m3 583,222 1,072,657 636,786 623,315 EM-EP-140a.1
Waste water withdrawal m3 – 112,708 54,927 0 EM-EP-140a.1
High quality non-saline surface water withdrawal m3 583,222 959,949 636,786 NPT EM-EP-140a.1
High quality non-saline groundwater withdrawal m3 306,645 159,297 119,113 NPT EM-EP-140a.1
Alternative non-saline surface water withdrawal m3 – 112,708 54,927 NPT EM-EP-140a.1
Alternative non-saline groundwater withdrawal m3 302,982 329,341 308,177 NPT EM-EP-140a.1
Volume of produced water generated m3 1,226,378 579,230 584,870 NPT
Volume of flowback water generated m3 634,907 1,060,710 730,700 397,350
Volume of produced water injected for disposal 7 m3 1,817,018 1,617,492 1,042,900 2,237,529
Produced/flowback water discharged % 0 0 0 0
Produced/flowback water injected 11 % 98 99 100 100
Produced/flowback water recycled 11 % 2 0.5 0.2 0
Hydrocarbon content in discharged water tonnes 0 0 0 NPT
Percentage of hydraulically fractured wells where water quality deteriorated post frac compared to baseline % 0 0 0 0
Percentage of hydraulically fractured wells with publicly disclosed frac fluid composition % 100 100 100 100 EM-EP-140a.3
Fresh water intensity m3/Boe 0.046 0.05 0.059 0.039
High-quality non-saline water intensity m3/Boe 0.032 0.033 0.056 0.039
ABANDONMENT AND RECLAMATION Units 2023 2022 2021 2020
Total active operated wells (net owned by NuVista) 310 278 248 252
Total inactive operated wells (net owned by NuVista) 306 321 347 440
Total abandoned wells (net owned by NuVista) 533 521 499 515
Well abandonments (cut and capped in reporting year by Nuvista) 26 26 30 25
Total wells in active reclamation (operated by NuVista) 480 323 343 347
Area of wellsites in active reclamation (operated by NuVista) ha 868 584 612 627
Annual reclamation certificates received (operated by NuVista) 19 20 29 8
Area covered by reclamation certificates received (operated by NuVista) ha 31 34 57 15
BIODIVERSITY Units 2023 2022 2021 2020
Number of reportable spills 8 3 1 3 0
Total volume of reportable spills 8 m3 10.95 0.05 7.1 0
Average reportable spill volume m3/spill 3.65 0.05 2 0
Number of reportable spills/production MMBoe 0.11 0.04 0.15 0
Volume of reportable spills/production m3/MMBoe 0.39 0.002 0.32 0
Number of pipeline leaks/1000 km pipeline 0 0 0 1.28
Volume (m3) pipeline leaks/1000 km pipeline m3/1000km 0 0 0 0
Number of fines and penalties 0 0 2 0
Notes
1  Scope 1 and 2 emissions quantification prepared using The Greenhouse Gas Protocol: A Corporate Accounting and Reporting Standard (Revised Edition) and verified  by external third-party in accordance with the ISO 14064 Part 3: Greenhouse Gases: Specification
with Guidance for the Verification and Validation of Greenhouse Gas Statements (ISO, 2019).
2   Direct emissions (combustion, flaring, formation CO2, venting, and fugitive leaks from equipment) under operational control.
3   Total direct plus indirect emissions (from purchased power).
4   Total methane vented emissions excludes fugitive emissions.
5   Direct methane emissions (combustion, flaring, fugitive leaks from equipment, venting).
6   Freshwater withdrawals are within licensed withdrawal limits. We constantly seek recycled, saline, or alternative non-saline freshwater in preference to high quality non-saline water whenever possible.
7  Represents the volume disposed at NuVista-owned disposal wells in 2021 and prior years, and does not include 3rd party disposal or the volume recycled.
8  Spills outside of secondary containment were reported to regulatory agencies as per jurisdictional requirements.
9  Year-end full time and part-time employees count are included in this metric (Calgary and field employees combined). Contractor and temporary employees are not included in the employee count.
10  In 2022 NuVista updated exposure hours/$ estimates to align with Energy Safety Canada’s most recent published Health and Safety Metric Guideline.
11  2022 total, based on measured data, is less than 100, likely due to rounding error, measurement variability and water in temporary storage.
12 “Alternative” and “High Quality” non-saline water withdrawals are Alberta Government Water Policy categories. These categories include the same water withdrawals we report under “freshwater withdrawal” and should not be double counted. Similarly, “Surface” and “Groundwater” withdrawal are alternate categories requested by reporting frameworks and should not be double counted with other classifications.
NPT= Not Previously Tracked

Performance Summary
SOCIAL Units 2023 2022 2021 2020 Notes
Health & Safety
Lost-time injury frequency (employees and contractors) per 200,000 man hours 0.1 0.157 0 0.198
Total recordable injury frequency (employees and contractors) per 200,000 man hours 0.48 0.47 0.64 0.59
Fatalities (employees and contractors) 0 0 0 0
Near miss frequency rate per 200,000 man hours 0.35 0.76 2.2 3.6
Our People Units 2023 2022 2021 2020
Headquarter (Calgary) employees 74 72 68 67
Grande Prairie employees 17 17 15 15
Field employees 5 5 5 5
Total number of employees 9 96 94 88 87
Grande Prairie independent contractors 65 62
Exposure hours (employees and contractors) 10 5,774,925 5,101,000 2,507,961 2,019,444
Voluntary employee turnover (including retirements) 3% 4% 5% 3%
Total spending on training CAD $ 401,336 195,456 149,316 118,619
Diversity Units 2023 2022 2021 2020
Females in workforce 32 28 27 27
Females supervisory/professional positions 12 10 10 12
Female management & executive team 2 2 1 1
Female Board of Directors 3 2 2 1
Community Investment Units 2023 2022 2021 2020
Total Spend CAD $ 926,735 852,576 486,173 354,200 NuVista donations plus employee donations, those matched by NuVista
Notes
1  Scope 1 and 2 emissions quantification prepared using The Greenhouse Gas Protocol: A Corporate Accounting and Reporting Standard (Revised Edition) and verified  by external third-party in accordance with the ISO 14064 Part 3: Greenhouse Gases: Specification
with Guidance for the Verification and Validation of Greenhouse Gas Statements (ISO, 2019).
2   Direct emissions (combustion, flaring, formation CO2, venting, and fugitive leaks from equipment) under operational control.
3   Total direct plus indirect emissions (from purchased power).
4   Total methane vented emissions excludes fugitive emissions.
5   Direct methane emissions (combustion, flaring, fugitive leaks from equipment, venting).
6   Freshwater withdrawals are within licensed withdrawal limits. We constantly seek recycled, saline, or alternative non-saline freshwater in preference to high quality non-saline water whenever possible.
7  Represents the volume disposed at NuVista-owned disposal wells in 2021 and prior years, and does not include 3rd party disposal or the volume recycled.
8  Spills outside of secondary containment were reported to regulatory agencies as per jurisdictional requirements.
9  Year-end full time and part-time employees count are included in this metric (Calgary and field employees combined). Contractor and temporary employees are not included in the employee count.
10  In 2022 NuVista updated exposure hours/$ estimates to align with Energy Safety Canada’s most recent published Health and Safety Metric Guideline.
11  2022 total, based on measured data, is less than 100, likely due to rounding error, measurement variability and water in temporary storage.
12 “Alternative” and “High Quality” non-saline water withdrawals are Alberta Government Water Policy categories. These categories include the same water withdrawals we report under “freshwater withdrawal” and should not be double counted. Similarly, “Surface” and “Groundwater” withdrawal are alternate categories requested by reporting frameworks and should not be double counted with other classifications.
NPT= Not Previously Tracked
NuVista Energy Ltd.

2500, 525 8th Ave SW
Calgary, Alberta T2P 1G1

Phone: (403) 538-8500
Fax: (403) 538-8505

Investors: investor.relations@nvaenergy.com
Accounts Payable: ap@nvaenergy.com

24 Hour Emergency Call-In

1-403-538-8500

© 2025 Nuvista Energy Ltd.

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Head Office

2500, 525 – 8th Ave SW
Calgary, Alberta T2P 1G1

Main (403) 538-8500
Fax (403) 538-8505

24 Hr Emergency Contact

1-403-538-8500