Natural Gas and Petroleum Systems
It is EPA's standard process to update the Inventory of U.S. Greenhouse Gas Emissions and Sinks (GHG Inventory) when relevant new and improved data are available. In recent years, as improved data have become available, EPA has updated methods and data sources for calculating greenhouse gas emissions for several sources in the natural gas and petroleum sectors.
The following information regards EPA estimates of greenhouse gas emissions from natural gas and petroleum systems in the annual GHG Inventory.
- 1990-2023 Inventory Stakeholder Process for Natural Gas and Petroleum Systems (to be published April 2025)
- 1990-2022 Inventory (published April 2024)
Archives: Previously Posted Memos and Other Information on Stakeholder Engagement
- 1990-2021 Inventory (published April 2023)
- 1990-2020 Inventory (published April 2022)
- 1990-2019 Inventory (published April 2021)
- 1990-2018 Inventory (published April 2020)
- 1990-2017 Inventory (published April 2019)
- 1990-2016 Inventory (published April 2018)
- 1990-2015 Inventory (published April 2017)
- 1990-2014 Inventory (published April 2016)
- 1990–2013 Inventory (published April 2015)
- 1990–2012 Inventory (published April 2014)
- 1990–2011 Inventory (published April 2013)