Climate Change Data

Environmental Metrics

ESG Focus Areas

• Environmental
• Social
• Governance

Environmental Achievements

• Reduced total GHG emissions (Scope 1 + Scope 2) from 4,699,804 mt CO2e in 2019 to 4,857,887 mt CO2e in 2020. Increased renewable energy usage to 25% from 23%.

Social Achievements

• Reduced Total Recordable Incident Rate (TRIR) for employees from 0.34 in 2019 to 0.18 in 2020.
• Increased percentage of female workforce to 18% from 17% and minority workforce to 27% from 25%.

Governance Achievements

• 85% of CEO target pay is performance-based; 70% is equity-based.
• Implemented new mandatory employee cybersecurity training program in 3rd quarter of 2021.
• Requires suppliers to sign off on a code of conduct.

Climate Goals & Targets

Environmental Challenges

• Not disclosed

Mitigation Strategies

• Not disclosed

Supply Chain Management

Supplier Audits: Not disclosed

Responsible Procurement

• Requires suppliers to sign off on the code of conduct or equivalent codes

Climate-Related Risks & Opportunities

Physical Risks

• Not disclosed

Transition Risks

• Not disclosed

Opportunities

• Not disclosed

Reporting Standards

Frameworks Used: Null

Certifications: Null

Third-party Assurance: Not disclosed

UN Sustainable Development Goals

• Not disclosed

Not disclosed

Sustainable Products & Innovation

• Not disclosed

Awards & Recognition

• Not disclosed

Environmental Metrics

ESG Focus Areas

• Environmental Management
• Climate Change and Emissions
• Biodiversity and Surface Impacts
• Release Prevention and Response
• Water Management
• Our Employees
• Diversity, Equity, and Inclusion
• Contractor and Supplier Management
• Landowner and Community Engagement
• Tribal Engagement
• Community Investment
• Governance
• Employee and contractor safety
• Asset and pipeline integrity
• Emergency preparedness and response
• Security
• Community safety

Environmental Achievements

• Achieved 7% reduction in NOx emissions from 2018-2020
• 100% of relevant Western Midstream sites have leak detection and repair (LDAR) in place
• Joined ONE Future and surpassed its 2025 methane intensity goals for our sectors in 2020
• Plans to permanently retire two natural gas-fired compressor engines by mid-2024, eliminating 10,000 metric tons of CO2e
• Achieved 0.05 methane intensity for gathering and boosting (vs. 0.08 goal) and 0.015 for processing (vs. 0.11 goal)

Social Achievements

• Established Senior VP, Human Capital Management and Diversity, Equity, and Inclusion, a new senior leadership role overseeing DEI
• 56% of senior leadership team members are female and/or racial or ethnic minorities
• 92% of new hires in 2020 were local residents
• 100% of our field-based contractors are assessed based on the scope of work provided for Western Midstream and on safety performance
• 73% reduction in employee Total Recordable Incident Rate (TRIR) from 2018 to 2020

Governance Achievements

• Established ESG Committee of the Board of Directors to help advance our ESG strategy and performance
• Added new ESG metrics to our internal bonus compensation program
• Hired a dedicated Director of ESG to coordinate efforts across technical teams and oversee disclosures

Climate Goals & Targets

Environmental Challenges

• System integrations with Anadarko and Occidental limit ability to separate out reporting data on ESG efforts prior to 2020
• Challenges of operating during a global pandemic (impacting contractor safety performance)

Mitigation Strategies

• Continuing to advance standalone data collection systems and expand reporting of data and management processes
• Implemented socially distanced and remote safety meetings with contractors, provided extended paid time-off benefits to contractors who could not work on sites due to COVID-19, and implemented a “Safe Hands” program to address hand injuries

Supply Chain Management

Supplier Audits: 100% of new and existing field-based HSSE contractors assessed in 2020

Responsible Procurement

• Partner Code of Conduct addressing minimum living wages, maximum working hours, and non-discrimination; emphasis on human rights, zero tolerance for forced labor, child labor, or corporal punishment; requirement for contractors to comply with applicable laws related to anti-discrimination, anti-corruption, and affirmative action.

Climate-Related Risks & Opportunities

Physical Risks

• Changes in weather patterns and extreme weather

Transition Risks

• Potential changes in regulatory requirements
• Changes in energy demand and consumer preferences

Opportunities

• Further reduce emissions, operate more efficiently, and assist in the transition to a lower-carbon economy

Reporting Standards

Frameworks Used: GRI, SASB, TCFD, Energy Infrastructure Council (EIC) ESG Reporting Template

Certifications: Null

Third-party Assurance: Lloyd’s Register Quality Assurance Ltd. (limited assurance of Scope 1 and Scope 2 emissions data)

UN Sustainable Development Goals

• Not disclosed

Not disclosed

Sustainable Products & Innovation

• Not disclosed

Awards & Recognition

• First place in GPA Midstream Association’s annual safety awards (2020 and 2021)

Environmental Metrics

ESG Focus Areas

• Supporting Sustainable Environments
• Focusing on People
• Operating Responsibly

Environmental Achievements

• Reduced Scope 1 and 2 Gross GHG Intensity by 4% from 2020
• As of year-end 2021, 57% of our sites have zero-emission pneumatic devices, including all of our facilities in the DJ Basin and Utah
• 182 pre-construction natural resource surveys completed
• 35,780 gallons of hydrostatic test water recycled

Social Achievements

• 56% of our senior leadership team members are female or racial/ethnic minorities
• 100% of new and existing field-based HSSE contractors were assessed on safety performance
• 10,500+ volunteer hours and $375,500+ total donations to our communities
• Expanded 2021 executive and employee annual compensation incentive program to include goals for safety, environmental releases, and volunteering performance
• 38,400+ hours of safety training for employees and relevant contractors

Governance Achievements

• Expanded HSSE goals in our annual executive and employee bonus compensation program to include safety, spills, and community outreach

Climate Goals & Targets

Environmental Challenges

• Extreme freezing temperatures during Winter Storm Uri in February 2021 caused several equipment failures
• Challenges of operating during a global pandemic

Mitigation Strategies

• Implemented freeze-mitigation equipment on our water pipeline systems
• Logistics operations center monitored key equipment parameters in real time and coordinated with field staff to quickly shut-in affected equipment to reduce or eliminate releases
• Careful testing of equipment before restarting, including vibration testing pipelines for potential pipe stress, and testing and replacing impacted equipment like valves and filters
• LDAR teams assessed equipment with forward-looking infrared (FLIR) cameras as they were brought back online to locate and repair any leaks or venting that resulted from the freeze
• Coordinated a careful approach with our customers to avoid potential issues between our operations as we both restarted
• Implemented socially distanced and remote safety meetings with employees and contractors

Supply Chain Management

Supplier Audits: 100% of new and existing field-based HSSE contractors were assessed on safety performance; audits of existing contractors on ESG and other criteria at least every three years

Responsible Procurement

• Partner Code of Conduct

Climate-Related Risks & Opportunities

Physical Risks

• extreme weather

Transition Risks

• climate-related regulations
• increased compliance costs
• potential shifts in access to capital

Opportunities

• commercial opportunities that focus on offsetting and minimizing our carbon footprint

Reporting Standards

Frameworks Used: GRI, SASB, TCFD, Energy Infrastructure Council (EIC)

Certifications: ISO 14011

Third-party Assurance: Lloyd’s Register Quality Assurance Ltd.

UN Sustainable Development Goals

• Not disclosed

Not disclosed

Sustainable Products & Innovation

• Not disclosed

Awards & Recognition

• finalist for the Benevity NewBee award

Environmental Metrics

ESG Focus Areas

• Supporting Sustainable Environments
• Focusing on People
• Operating Responsibly

Environmental Achievements

• Received GPA Midstream Association’s Environmental Award for work on crankcase emissions to reduce methane emissions.
• Signed Letter of Intent with Occidental to explore carbon capture, utilization, and storage opportunities.
• Reached goal of completing emissions-related projects resulting in an annualized 5% reduction in methane intensity between 2020 and 2022.
• Launched new greenhouse gas (GHG) tracking and reporting processes.
• Recycled 126,216 gallons of hydrostatic test water.

Social Achievements

• 44% of senior leadership team members and 31% of other managers are female or racial/ethnic minorities.
• 100% of new and existing field-based HSSE contractors were assessed on safety performance.
• 13,239 volunteer hours and $422,205 in total donations to communities (25% and 12% increase from 2021).

Governance Achievements

• Established a Board Compensation Committee to set compensation philosophy and objectives.
• Expanded 2022 executive and employee annual compensation incentive program to include goals related to methane reduction and GHG emissions management.

Climate Goals & Targets

Environmental Challenges

• Potential risks that climate change poses to operations, including climate-related regulations, increased compliance costs, and potential shifts in access to capital.
• Increase in the volume of liquid hydrocarbon spills and other releases compared to 2021.
• Increase in the volume of produced water releases from gathering and boosting and processing segments.

Mitigation Strategies

• Refining approach to managing climate-related risks and opportunities.
• Implementing improvements to increase the accuracy of emissions measurement and reporting capabilities.
• Investigating incident that resulted in release of produced water and crude oil and using lessons learned to enhance policies and operations.

Supply Chain Management

Supplier Audits: 100% of suppliers screened based on environmental and social criteria

Responsible Procurement

• Partner Code of Conduct addressing minimum living wages, maximum working hours, and non-discrimination; master service contracts requiring compliance with laws related to anti-discrimination, anti-corruption, and affirmative action; focus on buying products manufactured in the United States.

Climate-Related Risks & Opportunities

Physical Risks

• Not disclosed

Transition Risks

• Climate-related regulations
• Increased compliance costs
• Potential shifts in access to capital

Opportunities

• Carbon capture, utilization, and storage opportunities
• Reducing emissions from own operations
• Supporting expanded use of natural gas

Reporting Standards

Frameworks Used: GRI, SASB, TCFD, Energy Infrastructure Council (EIC)

Certifications: ISO 14001

Third-party Assurance: Lloyd’s Register Quality Assurance Ltd.

UN Sustainable Development Goals

• Not disclosed

Not disclosed

Sustainable Products & Innovation

• Not disclosed

Awards & Recognition

• GPA Midstream Association’s Environmental Excellence Award
• Volunteer of the Year – Montgomery County Food Bank (Texas)
• Group Volunteer Award – Food Bank of the Rockies (Colorado)
• Finalist – 2022 Goodie Awards (Benevity "NewB" Award)

Environmental Metrics

ESG Focus Areas

• Climate Change and Emissions
• Diversity, Equity, and Inclusion
• Community Investment
• Employee and Contractor Safety
• Asset Integrity
• Landowner Engagement
• Governance

Environmental Achievements

• Reduced engine crankcase emissions by more than 1,300 metric tons per year by implementing technology to recapture these emissions and recycle them for beneficial use
• Reclaimed 534 acres of land

Social Achievements

• Contributed more than 17,200 volunteer hours to more than 590 causes in our communities
• Recorded 74,308 safety training hours, an average of 53 hours per worker
• Increased preventative safety efforts, with a 144% increase in Good Catches reported and a 338% increase in stop-work use vs. 2022

Governance Achievements

• Implemented qualitative emissions-management goals
• 44% of our Executive Leadership Team members and 33% of other managers are female or racial / ethnic minorities

Climate Goals & Targets

Environmental Challenges

• Potential climate-related risks including climate-related regulations, increased compliance costs, and potential shifts in access to capital
• Potential for induced seismicity from oil and gas activities, including water disposal activities
• Encroachments into pipeline rights-of-way

Mitigation Strategies

• Investing in measures to avoid, reduce, and offset emissions, including by improving efficiency and GHG management activities; industry collaboration and partnerships; engagement with domestic policymakers, regulators, and industry organizations; continuous monitoring of regulatory developments
• Robust risk assessment processes during the well-planning phase to reduce the risk associated with seismic hazards; ongoing monitoring of seismic activity and mitigation actions as needed; engagement with industry partners, regulators, and academics
• Proactive participation in the planning process with community planners, developers, and other stakeholders to prevent future issues; collaborative work with third parties to find mutually agreeable solutions

Supply Chain Management

Supplier Audits: At least every three years for contractors connected to ISNetworld; periodic inspections by WES HSE&S personnel for waste disposal and recycling facilities; source inspections using third-party auditors for suppliers of critical equipment

Responsible Procurement

• Partner Code of Conduct; ESG screening criteria for contractors; quality and safety assessments for suppliers of critical equipment

Climate-Related Risks & Opportunities

Physical Risks

• Weather and natural disasters

Transition Risks

• More stringent regulations; increased scrutiny from institutional investors; reduced access to capital

Opportunities

• Investing in measures to avoid, reduce, and offset emissions; improving efficiency and GHG management activities; transparent disclosure and reporting; stakeholder engagement

Reporting Standards

Frameworks Used: GRI, SASB, TCFD, EIC ESG Reporting Template

Certifications: ISO 14001 (implied)

Third-party Assurance: KPMG (limited assurance on Scope 1 & 2 emissions and safety/health data)

UN Sustainable Development Goals

• Not disclosed

Not disclosed

Sustainable Products & Innovation

• Not disclosed

Awards & Recognition

• Not disclosed