Southern Company Gas, formerly AGL Resources Inc, is a natural gas-only distribution company. The Company operates in four operating segments: distribution operations, retail operations, wholesale services and midstream operations. The Company's distribution operations segment is engaged in providing natural gas to residential, commercial and industrial customers. The retail operations segment is involved in the provision of natural gas commodity and related services. The wholesale services segment is engaged in natural gas storage, gas pipeline arbitrage and provides natural gas asset management and related logistics services for its utilities, as well as for non-affiliated companies. Midstream operations segment consists primarily of natural gas storage facilities and select pipelines, enabling the provision of diverse sources of natural gas supplies to its customers.