Spudded on Saturday, Lengo-1 had this morning reached a depth of 316m, where the first casing point was being installed. The well has a planned total depth of 995m, AWE said.
The previous well in the program, Lisah-1, was plugged and abandoned last month as a duster.
Participants in the Bulu production sharing contract are: Aabar Petroleum Investments Company PJSC (operator) 42.5%, AWE 42.5%, PT Satria Energindo 10% and PT Satria Wijaya Kusuma 5%.