Sentence 1: The carrier expanded with the acquisition of British Midland International in 1987 , Dan - Air in 1992 and British Caledonian in 2012 .
Sentence 2: The carrier expanded with the acquisition of British Midland International in 1987 , Dan-Air in 1992 , and British Caledonian in 2012 .

Do these two sentences convey the same information?
yes