id	domain	url
iogr-1286	www.eia.gov	http://www.eia.gov/forecasts/aeo/er/index.cfm
iogr-1286	www.worldcoal.org	http://www.worldcoal.org/resources/wca-publications
iogr-1286	www.eia.gov	https://www.eia.gov/energyexplained/coal
iogr-1286	www.eia.gov	https://www.eia.gov/energyexplained/coal
iogr-1286	www.bpe.gov.ng	https://www.bpe.gov.ng/nigerian-coalcorporation/(accessed
iogr-1286	ourworldindata.org	https://ourworldindata.org/energy
iogr-1286	energyeducation.ca	https://energyeducation.ca/encyclopedia/sub-bituminous_coal
iogr-1286	www.usgs.gov	https://www.usgs.gov/faqs/what-are-types-coal
iogr-1286	www.bpe.gov.ng	https://www.bpe.gov.ng/nigerian-coal-corporation
iogr-1286	www.bpe.gov.ng	https://www.bpe.gov.ng/nigerian-coal-corporation
iogr-1286	www.usgs.gov	https://www.usgs.gov/faqs/what-are-types-coal