** Shares of oil and gas explorer Beach Energy BPT.AX fall as much as 6.9% to A$1.340, their lowest since December 20

** BPT fell ~5% on Thursday after it narrowed FY production outlook and its HY underlying NPAT missed Citi's and Jarden's estimates

** Citi cuts price target to A$1.15 from A$1.30

** Brokerage trims FY25 earnings estimates by ~7% after assuming a higher decline at Western Flank ops and pushing out Waitsia project to commence LNG sales in June instead of April

** Stock top loser on ASX 200 benchmark index .AXJO

** Stock down ~3.2% YTD, including day's moves

(Reporting by Himanshi Akhand in Bengaluru)

((Himanshi.Akhand@thomsonreuters.com;))