ɪn mˈeɪ nˈaɪntiːnhˈʌndɹɪd nˈaɪnti nˈaɪn, ðə ɡɹˈuːp sˈaɪnd ðə pətɹˈoʊliːəm kˈɑːntɹækt fɔːɹ blˈɑːk sˈɪkstiːn wˈʌn ɪn vˌiːətnˈɑːm ænd ðə blˈɑːk nˈaɪn dˈæʃ tˈuː pətɹˈoʊliːəm kˈɑːntɹækt wʌz sˈaɪnd ɐ jˈɪɹ lˈeɪɾɚɹ ɪn tˈuː θˈaʊzənd.
In May 1999, the Group signed the petroleum contract for Block 16–1 in Vietnam and the Block 9-2 petroleum contract was signed a year later in 2000.