Amplitude Energy has taken a final investment decision (FID) on the development phase of its East Coast Supply Project (ECSP) in Australia's Otway Basin, targeting first gas in 2028 and gross production of up to about 90 terajoules per day.The development phase includes subsea installations and modifications to the Athena Gas Plant during fiscal 2028, with FID starting formal project execution and authorizing the award of key contracts…