UK's Energean tumbles as Carlyle deal to buy assets at risk of collapse

** UK-based gas producer Energean ENOG.L down as much as ~11% at 837.5p, its lowest point since October 3

** Co says a deal for Carlyle CG.O to buy assets from ENOG for up to $945 million is at risk of collapsing as some regulatory hurdles have not been cleared ahead of a deadline this week

** "Certain regulatory approvals in Italy and Egypt have not yet been obtained by Carlyle (or waived)," ENOG says

** Adds that transaction with CG may be terminated

** As of last close, ENOG stock lost ~10% YTD