OverviewThis report is based on the IPIECA/API/IOGP Oil & Gas Industry Guidance on Voluntary Sustainability Reporting with additional indicators informed by the Global Reporting Initiative (GRI) Standard1. The index below lists indicators on which we have fully or partially reported.


Page IPIECA/API/IOGP Indicators GRI Content Index
About this Report   102-1; 102-32; 102-46; 102-52; 102-53
Marathon Oil at a Glance   102-2; 102-3; 102-4; 102-7
CEO Message E6, E8, HS1, HS3, SE1, SE4 102-14
A Message from Our Board E1, E6, E8, E9, HS2, SE4 102-14
Stakeholder Map

E6, E8, HS1, SE1, SE4, SE5, SE7, SE8, SE10, SE13, SE14, SE17, SE18, SE16




Page IPIECA/API/IOGP Indicators GRI Content Index
Introduction SE15, SE17, SE18 102-18; 102-23 
Board Overview SE15  102-22; 102-24; 102-27; 102-35 
Management Systems HS1, HS3, SE10, SE17 102-19; 102-20; 102-21; 102-26; 102-29; 102-30; 102-31; 103-1; 103-2; 103-3; 403-2
HES&S Policies, Standards, Practices and Audits HS1   
Sustainability Oversight HS3, SE1, SE16  102-15; 102-21; 102-46; 102-47
Ethical Business Practices SE9, SE11, SE12, SE13, SE17, SE18 102-16; 102-17; 205-2
Supply Chain Monitoring SE12  103-2 
Political Contributions and Lobbying Activities SE14 415-1

Highlight Stories

Page IPIECA/API/IOGP Indicators GRI Content Index

Water Management

E6, E8, SE1, SE14  
Technology and Innovation SE16  
Equatorial Guinea HS1, HS2, HS3, SE1, SE4, SE5, SE6, SE7, SE10, SE13, SE17  



Page IPIECA/API/IOGP Indicators GRI Content Index
Introduction E1, E6, E9, SE1, SE14, SE17 103-1; 103-2 
Climate Change E1  
Air Emissions Management E1, E4, E8 305-1; 305-2; 305-4; 305-5; 305-7; OG6
Emissions Reduction Strategies E1, E3, E4  
Land Stewardship and Biodiversity E5, E6, SE4 304-1; 304-2; 304-3; 304-4 
Water Stewardship E6 303-1; 303-2; 303-3; 303-4; 306-1; OG5 
Spill Prevention and Response E9 306-3
Hydraulic Fracturing E4, E6, E8, E9, E10, HS4  
Seismicity HS4, SE1  
Waste E10 306-2 


Safety and Workforce

Page IPIECA/API/IOGP Indicators GRI Content Index
Introduction: Safety HS1, HS3, HS5, SE1, SE17 103-1; 103-2; 403-1
2018 Safety Progress HS1, HS2, HS4, HS5, SE17 403-2; 403-4; 403-9; OG13
Health, Environment and Safety Training HS1, HS5, SE17 403-4; 403-5 
Workforce Health HS1, HS2, HS4, SE1, SE4 403-3; 403-6
Emergency Preparedness and Response Capabilities HS1, SE1, SE17   
Introduction: Workforce SE15, SE16, SE17 102-8; 401-1
Diversity and Inclusion SE15, SE17 102-8
Training and Development HS1, SE15, SE16, SE17 404-1; 404-2 
Employee Engagement SE16 403-4 



Page IPIECA/API/IOGP Indicators GRI Content Index
Introduction E5, HS2, SE1, SE4 203-1; 413-2 
Stakeholder Engagement SE1, SE2, SE5, SE7 OG9
Social Investment HS2, SE1, SE4 203-2
Supply Chain Management HS1, SE5, SE6, SE7 204-1; 308-1
Security and Human Rights   410-1; 412-1

¹Important Note: This index does not imply that the Marathon Oil Report is in accordance with the GRI Standard

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