InterOil Corporation has started drilling the Antelope-4 appraisal well in Petroleum Retention License 15 in Papua New Guinea.
Antelope-4 is the first of at least two appraisal wells planned on the Antelope field.
The well lies about 1km south of Antelope-2 and is the most southern well in the Elk-Antelope field.
Antelope-5, the second appraisal well in the licence, is expected to be drilled later this year.
Press Release, September 17, 2014; Image: InterOil