id	domain	url
commonwealth-131	dx.doi.org	http://dx.doi.org/10.15367/com.v19i1.131
commonwealth-131	www.eia.gov	www.eia.gov/state/rankings/#/series/46
commonwealth-131	www.eia.gov	www.eia.gov/state/rankings/#/series/47
commonwealth-131	www.ncsl.org	http://www.ncsl.org
commonwealth-131	www.eia.gov	http://www.eia.gov/dnav/ng/hist/n9010pa2a.htm
commonwealth-131	www.naturalgasintel.com	www.naturalgasintel.com/articles/99831xto-c
commonwealth-131	www.naturalgasintel.com	www.naturalgasintel.com
commonwealth-131	www.naturalgasintel.com	www.naturalgasintel.com/articles/105435
commonwealth-131	stateimpact.npr.org	https://stateimpact.npr.org
commonwealth-131	www.eli.org	https://www.eli.org
commonwealth-131	www.citybeat.com	www.citybeat.com/news/article/13002033/notaxationwithoutoil
commonwealth-131	pennbpc.org	http://pennbpc.org/pa-marcellus-impact-fee-comes-short
commonwealth-131	stateimpact.npr.org	https://stateimpact.npr.org/pennsylvania/2016/02/09/wolf
commonwealth-131	www.dailycal.org	www.dailycal.org/2014/04/07
commonwealth-131	thetimestribune.com	http://thetimestribune.com/news/rendellcalls-g
commonwealth-131	www.bls.gov	www.bls.gov/opub/mlr/2014/article/the
commonwealth-131	www.eia.gov	www.eia.gov/state/rankings/?sid=pa#series/48
commonwealth-131	www.eia.gov	www.eia.gov/state/seds/data.cfm?incfile=/state/seds
commonwealth-131	www.eia.gov	www.eia.gov/dnav/ng/ng_
commonwealth-131	www.eia.gov	www.eia.gov
commonwealth-131	www.eia.gov	www.eia.gov/state/rankings/#/series/46
commonwealth-131	www.businessinsider.com	www.businessinsider.com
commonwealth-131	www.pennlive.com	www.pennlive.com/news/2016/01/other_states_