Pars Energy Gostar Drilling and Exploration Company (PEDEX) was established in 1981 as a construction company and a subsidiary of Mostazafan Foundation, and it started its activity by implementing related projects including Bushehr Jalali Fishing Port, road construction in different parts of the country and other construction projects. After an almost two decades of contracting operation and in line with the new objectives defined for entering into oil industry upstream activities, by participating in a consortium consisting of several foreign companies, PEDEX could win the tender for development of Shanol, Varavi and Tabnak gas fields in south of Fars Province in 1999. Concurrent with successful drilling of 25 wells in Shanol, Varavi and Tabnak gas fields development project, that was appreciated by Petroleum Engineering and Development Company (PEDEC) as the client, the company strongly took the first step in order to achieve a reasonable backing in applying specialized workforce and gain experience, to ensure that it takes next steps in this route more confidently. Due to a successful planning in recruitment and training of specialized employees throughout the country, PEDEX could win the top company’s statue and letter of appreciation from honorable oil minister as the best entrepreneur in 9th International Oil, Gas and Petrochemicals Fair.