InterOil started drilling the Triceratops-3 appraisal well at Petroleum Retention License 39 in the Gulf province of Papua New Guinea. The well will target additional pay northwest of previous appraisal wells in the area. It is a potential tieback candidate to the Elk-Antelope gas field, which is approximately 35 km to the northwest. InterOil (69%) is the operator of the well with partner Pacific Rubiales Energy (13%) and other minority interests (18%).