Stakeholder Process for Natural Gas and Petroleum Systems in the 1990-2017 Inventory
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.
EPA will be holding stakeholder webinars and meetings on updates under consideration for the 1990-2017 GHG Inventory (to be released in 2019). Information for each webinar and meeting will be posted here as they are scheduled.
2019 GHG Inventory Public Review Draft--Petroleum and Natural Gas Information
EPA is seeking public comment on the annual “Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2017” draft report. This draft report will be open for public comment for 30 days after the Federal Register notice is published.
Methodology Annexes for Petroleum and Natural Gas Systems
- Annex 3.5: Methodology for Estimating CH4, CO2, and N2O Emissions from Petroleum Systems (205 K)
- Annex 3.6: Methodology for Estimating CH4, CO2, and N2O Emissions from Natural Gas Systems(359 K)
Complete 2019 Public Review Draft of GHG Inventory Report
February 26, 2019 Webinar
On February 26, 2019, EPA held a stakeholder webinar that provided an overview of the 2019 GHG Inventory Public Review draft emissions for natural gas and petroleum systems, and the webinar slides are available here:
October 17, 2018 Workshop
On October 17, 2018, EPA held a stakeholder workshop on greenhouse gas (GHG) data for natural gas and petroleum systems from the Greenhouse Gas Reporting Program (GHGRP) and Inventory of U.S. Greenhouse Gas Emissions and Sinks (GHG Inventory).
At the workshop, EPA presented on GHGRP data and held a discussion on burden reduction opportunities. EPA also presented information on the GHG Inventory, including on updates under consideration.
June 6, 2018 Webinar
On June 6, 2018, EPA held a stakeholder webinar to provide an overview of the updates in the final 1990-2016 GHG Inventory and of updates under consideration for the 1990-2017 GHG Inventory.
Access prior year stakeholder outreach documents for updates to the methods and data used for GHG emission estimates for natural gas and petroleum systems.
See additional information on oil and gas estimates in the 1990-2016 GHG Inventory (published April 2018).