1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981

1920s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s
2020s

Categories

Categories:

Energy companies established in the 1970s
Energy companies by year of establishment
Companies established in 1976