Oil and Gas - GHG Inventory Protocols

Petroleum Industry Guidelines for Reporting Greenhouse Gas Emissions (PDF 2.0 MB) Download Acrobat Reader
IPIECA, as part of a joint industry task force with the American Petroleum Institute (API) and the International Association of Oil and Gas Producers (OGP), has developed, on behalf of the petroleum industry, a voluntary industry-endorsed approach for measuring and reporting GHG emissions.

The petroleum industry has recognized the need for GHG accounting and reporting guidance that is focused specifically on the industry. Current approaches vary among government reporting programs. Companies also differ in how they voluntarily report their emissions data. This variability in approaches has resulted in a lack of comparability of reported GHG emissions from company to company within specific industrial sectors, as well as a lack of comparability of results from reporting program to reporting program.

Toward a Consistent Methodology for Estimating Greenhouse Gas Emissions from Oil and Natural Gas Industry Operations (PDF 378 KB) Download Acrobat Reader
Addressing climate change requires knowing the amounts of GHG emissions being produced. In this document, API examines the differences between its Compendium of Greenhouse Gas Emissions Methodologies for the Oil and Gas Industry and other guidelines and protocols. Significant differences have been found that should be reconciled to ensure comparability of estimates and to understand the impacts associated with actions taken.

Compendium of GHG Emissions Methodologies for the Oil and Gas Industry (PDF 14.6 MB) Download Acrobat Reader
The Compendium documents numerous calculation techniques and emission factors available for developing GHG emissions inventories for carbon dioxide (CO2) and methane (CH4). The estimation techniques cover the full range of oil and gas industry operations - from exploration and production through refining to product marketing - and include emissions from transportation of crude oil, natural gas, and petroleum products.


Page Last Modified:   August 7, 2008