The milestone took place at its Pasca A4 well located 90 kilometres offshore from Orokolo Bay, Gulf Province.
Twinza hopes this is the birth of the first offshore gas and oil development in PNG.
It has been nearly five decades after the initial discovery of gas condensates in the offshore field.
And six years after the licence signing to Petroleum Prospecting License or PPL 328, Twinza conducted the flaring of the Pasca A Gas Field well.
It is indeed a significant moment and is on a positive track for a development licence to be granted.