1. Energy Information Administration
(EIA) Form
EIA-923 detailed data with previous form data. https://www.eia.gov/electricity/data/eia923/ (accessed Aug 1, 2019).
2. Energy Information
Administration (EIA) Monthly
Energy Review. https://www.eia.gov/totalenergy/data/monthly/index.php#electricity (accessed May 12, 2020).
3. Energy Information
Administration (EIA) Monthly
Energy Review. https://www.eia.gov/totalenergy/data/monthly/index.php#environment (accessed May 12, 2020).
4. Reconciling divergent estimates of oil and gas methane emissions
5. Alvarez, R.; Fund, E. D. Emissions from natural gas production in the Barnett shale area and opportunities for cost-effective improvements, 2009.