Moama, coming off a runner-up finish to Sydney Lions at BPL14 in Moama in February, is once again represented by Natasha Van Eldik and Ryan Bester, with four-time BPL MVP Aron Sherriff the only change, in place of Kevin Anderson.
Ryan Burnett has also returned as coach.
Moama holds a 4-2 record after five rounds at Pine Rivers Bowls Club in Brisbane, with three Steamers victories heading to a tie-break end.
The Steamers’ opening-round encounter against Tasmania was a nail-biter, falling by a single shot in the tie-breaker against the Tridents (6-4, 3-12, 0-1).
A maiden win came against the Perth Suns, but again the Steamers needed a tie-break end to split the difference, notching a three-shot advantage in the 16-10 victory.
Moama ran into a rampant Brisbane Pirates on day two, falling 4-17 to a side containing the mercurial Alex Marshall, a player widely considered to be the greatest of all time.
A thriller against Melbourne Pulse in round four also headed to tie-break, with both sides notching one-shot wins in each of the two sets (3-4, 7-6).
Moama claimed the tie-break 2-0, and added a third win of the tournament over Tweed Heads (8-5, 6-3) before going to yet another tie-break end against Gold Coast, prevailing 14-13.
That win saw the Steamers jump into fourth spot with a game to play against Adelaide Pioneers on Tuesday night.
Eighteen rounds of play will determine the top five to contest BPL15 finals on Friday, May 27.
BPL15 can be viewed on Fox Sports or Kayo.