Columbia subject headings:
Gas fields--Nigeria--Maps.
Maps.
Natural gas pipelines--Nigeria--Maps.
Natural gas--Nigeria--Maps.
Oil fields--Nigeria--Maps.
Petroleum industry and trade--Nigeria--Maps.
Petroleum pipelines--Nigeria--Maps.
Petroleum--Refining--Nigeria--Maps.
Power resources--Nigeria--Maps.
Harvard subject headings:
Gas fields--Nigeria--Maps.
Natural gas pipelines--Nigeria--Maps.
Natural gas--Nigeria--Maps.
Oil fields--Nigeria--Maps.
Petroleum industry and trade--Nigeria--Maps.
Petroleum pipelines--Nigeria--Maps.
Petroleum--Refining--Nigeria--Maps.
Power resources--Nigeria--Maps.
Princeton subject headings:
Coal reserves--Nigeria--Maps.
Coalfields--Nigeria--Maps.
Electric cables--Nigeria--Maps.
Gas fields--Nigeria--Maps.
Gas industry--Nigeria--Maps.
Liquefied natural gas industry--Nigeria--Maps.
Liquefied natural gas shipping terminals--Nigeria--Maps.
Maps.
Natural gas in submerged lands--Nigeria--Maps.
Natural gas pipelines--Nigeria--Maps.
Natural gas--Nigeria--Maps.
Natural gas--Storage--Nigeria--Maps.
Nigeria--Maps.
Oil fields--Nigeria--Maps.
Petroleum in submerged lands--Nigeria--Maps.
Petroleum industry and trade--Nigeria--Maps.
Petroleum pipelines--Nigeria--Maps.
Petroleum refineries--Nigeria--Maps.
Petroleum shipping terminals--Nigeria--Maps.
Petroleum--Nigeria--Maps.
Power resources--Nigeria--Maps.
Power-plants--Nigeria--Maps.