Australia were limping along at 50/2 but managed to post a competitive total and bowl out Oman to earn a 39-run win in their T20 World Cup opener in Barbados on Wednesday.
The 2024 T20 World Cup gets underway on 2 June in the United States and West Indies, with 20 teams vying for top honours.
Australia have replaced India at the top of the men's world Test rankings, with Ben Stokes' England remaining third.
Australia will go to the T20 World Cup without stalwart Steve Smith and fast-rising star Jake Fraser-McGurk.
Former Australia captain Meg Lanning revealed her "obsession" with exercise and not eating enough precipitated her surprise international retirement late last year.
Australian spinner Nathan Lyon revealed that the 2027 Ashes in England remains a target for him.