Alabama Gas Corporation[]
1948-1953[]
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LOGO MISSING
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Alagasco was founded as the Alabama Gas Corporation, the merger of the Alabama Gas Company and Birmingham Gas Company under Southern Natural Gas.
1953-1966[]
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LOGO MISSING
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SNG spun off AGC in 1953.
1966-1977[]
The Alagasco name, first used in 1961 for a mascot, became the new service mark of the company in 1966.
Alagasco[]
1977-1986[]
The parent of Alagasco renamed itself to Energen Corporation in 1985.
1986-1989[]
1989-200?[]
200?-2014[]
Energen sold Alagasco to The Laclede Group in 2014.