Natural Gas Transportation and Services

Through its operating companies, AEI has provided transportation and related services to upstream oil and gas producers, downstream utilities and other large users since 1974 when the Promigas pipeline began operations. Business Segment Company Country Equity Interest Pipelines (mi) Centragas Colombia 13.03% 458 Cuiabá GOB Bolivia 100% 225 Cuiabá GOM Brazil 100% 175 Cuiabá TBS Brazil 100% -- Emgasud Argentina 42.73% 440 GBS Colombia 49.54% 196 GTB Bolivia 34.65% 346 Promigas S.A. Colombia 52.13% 1,271 PSI Colombia 50.52% -- TBG Brazil 8.3% 1,611 Transmetano Colombia 50.65% 93 Transoccidente Colombia 35.89% 7 Transoriente Colombia 15.31% 98 Total 4,920