Greenhouse gas (GHG) emissions and emissions intensity vary substantially among U.S. onshore oil and gas producers, according to a new study by nonprofits the Clean Air Task Force (CATF) and Ceres.

emissions

The report compiled data reported by 295 producers to the Environmental Protection Agency (EPA) under its Greenhouse Gas Reporting Program (GHGRP), and data calculated from assumptions in EPA’s annual Greenhouse Gas Inventory.

The variability is especially high for methane emissions by natural gas producers, researchers found.

Natural gas producers in the highest quartile of methane emissions intensity have an average intensity that is nearly 22 times higher than their counterparts in the lowest quartile, the study found.

As for overall GHG emissions intensity, oil and gas...