PTT Exploration and Production Public Company Limited is a Thailand-based company engaged in the exploration and production of petroleum. The Company operates through two segments: exploration and production, and other operations. The Company operates in oil and gas exploration and production both domestically and overseas, either as an operator or as a joint venture partner with international oil and gas companies. Its domestic projects are located in the Gulf of Thailand. The Companyâ€™s overseas projects are located in Southeast Asia, Middle East, Australia, America, Africa, and others. Its other operations consist mainly of investments in related business and other operations. The Companyâ€™s subsidiaries include PTTEP International Limited, PTTEP Services Limited, PTTEP Siam Limited, PTTEP Offshore Investment Company Limited, PTTEP HK Holding Limited, PTTEP Treasury Center Company Limited, PTTEP Energy Holding (Thailand) Company Limited, and PTTEP Energy Development Company Limited.