sentences:  In October 1959, the Commission was converted into a statutory body by an act of the Indian Parliament, which enhanced powers of the commission further.The main functions of the Oil and Natural Gas Commission subject to the provisions of the Act were "to plan, promote, organize and implement programs for development of Petroleum Resources and the production and sale of petroleum and petroleum products produced by it, and to perform such other functions as the Central Government may, from time to time, assign to it ".The act further outlined the activities and steps to be taken by ONGC in fulfilling its mandate.