InterOil Corporation (InterOil) is an oil and gas exploration and production company. Papua New Guinea explores for oil and gas across over 4 million acres in the south of the country. The area is divided into four Petroleum Prospecting Licenses (PPLs) and two Petroleum Retention Licenses (PRLs). A feature of InterOil's work in Papua New Guinea is PRL 15 that contains the Elk-Antelope field. PRL 39 contains the Triceratops discovery. The Company held approximately 40.1% interest in PRL 15. Its subsidiaries include SPI Exploration and Production Corporation, InterOil Singapore Pte Ltd, InterOil Corporate PNG Limited, South Pacific Refining Limited, SPI Distribution Limited, InterOil LNG Holdings Inc., InterOil Australia Pty Ltd and Direct Employment Services Company, among others. Its applications for new petroleum prospecting licenses were approved with PPL 474 replacing PPL 236, PPL 475 replacing PPL 237, and PPL 476 and PPL 477 replacing PPL 238 and included new license commitments.