The second planned extended well test began at the Antelope-5 well on petroleum retention license 15 in Papua New Guinea’s the Gulf Province, InterOil Corp. said Jan. 21.

Total E&P PNG Ltd., operator of the license, notified InterOil, the company said. The extended well test will flow Antelope-5 at about 50MMcf/d for about two weeks before being shut in to record the subsequent pressure buildup. Pressure gauges were placed in the well, and the test will last about one month.

The Antelope-6 appraisal well, located near the Antelope-3 well, was being prepared to drill to 1,120m (3,674 ft) true vertical depth, according to Total. This well was spudded on Dec. 23, 2015, and has proposed total depth of about 2,464m (8,084 ft.

The PRL15 joint venture partners are discussing an additional appraisal well to the west of Antelope-5. The decision whether to drill it will follow the evaluation of Antelope-6 and the results of the latest flow test at Antelope-5.

InterOil Corp. is based in Singapore.