The pioneer of the natural gas industry in the country, Pakistan Petroleum Limited (PPL) has been a frontline player in the energy sector since the mid-1950s. As a major supplier of natural gas, PPL today contributes over 20 percent of the country's total natural gas supplies besides producing crude oil, NGL and LPG.PPL operates 12 producing fields across the country at Sui (Pakistan's largest gas field), Adhi, Kandhkot, Chachar, Mazarani, Adam, Adam West, Shadadpur, Shahdadpur West, Shahdadpur East, Zafir and Fazal and holds working interest in 18 partner-operated fields.As a major stakeholder in securing a safe energy future for the country, PPL pursues an aggressive exploration agenda aimed at enhancing hydrocarbon recovery and replenish reserves. PPL together with its subsidiaries has a portfolio of 47 exploration assets of which the company operates 28, including one contract in Iraq, while 19 blocks, comprising three offshore leases in Pakistan and two onshore concessions in Yemen, are operated by joint venture partners. Over the years, PPL has developed a reliable foundation for providing clean and safe energy through sustainable exploitation of indigenous natural resources while adhering to best practices of corporate governance and employee health and safety and constraining the ecological footprint of its operations. As a result, 16 fields and facilities are certified for ISO 9001 QMS and 13 for ISO 14001 EMS and OHSAS 18001.PPL has played a significant role as a responsible corporate citizen since the inception of its commercial activities in Sui by establishing Sui Model School in 1957 for children of workers and local communities. In 2001, PPL Welfare Trust was founded to provide geographical and thematic diversity to the company's CSR programme, which focuses on education, health, infrastructure development and livelihood generation for uplift of disadvantaged communities living around operating areas and large urban centres of the country.