Emissions

Fuel-Based Oil and Gas Inventory

This inventory is developed using fuel information on drilling and oil & natural gas production from the U.S. Energy Information Admistration (EIA), and downscaled to a gridded 4 km x 4 km inventory using well-level production data from Enverus Drillinginfo. The emissions are mapped on the standard National Emissions Inventory (NEI) domain. The emissions are created for 2015 to coincide with the Shale Oil & Natural Gas Nexus (SONGNEX) 2015 field study.

NOx emissions are estimated from fuel use using emission factors from the EPA Oil & Gas Tool and described by Gorchov-Negron et al. (2018).

CH4 emissions are inferred using tracer to tracer correlations from in-situ aircraft measurements during the Southeast Nexus (SENEX) Study 2013 and SONGNEX 2015 field studies.

Similarly, NMVOC emissions are inferred using tracer to tracer correlations from in-situ field campaigns in conjunction with basin oil/gas production ratio information from Enverus Drillinginfo.

The gridded emissions are provided as an ArcGIS Shapefile, and columns as follows:

For more information refer to:

  1. Francoeur, C.B., B.C. McDonald, J.B. Gilman, K.J. Zarzana, B. Dix, S.S. Brown, J.A. de Gouw, G.J. Frost, M. Li, S.A. McKeen, J. Peischl, I.B. Pollack, T.B. Ryerson, C. Thompson, C. Warneke, and M. Trainer, Quantifying methane and ozone precursor emissions from oil and gas production regions across the continental US, Environmental Science & Technology, doi:10.1021/acs.est.0c07352, 2021.
  2. Gorchov Negron, A.M., B.C. McDonald, S.A. McKeen, J. Peischl, R. Ahmadov, J.A. de Gouw, G.J. Frost, M.G. Hastings, I.B. Pollack, T.B. Ryerson, C. Thompson, C. Warneke, and M. Trainer, Development of a fuel-based oil and gas inventory of nitrogen oxides emissions, Environmental Science & Technology, doi:10.1021/acs.est.8b02245, 2018.

For more information or questions, contact Brian McDonald.