In petroleum: Presidential Decree No. 87, Amending Presidential Decree No. 8 Issued on October 2, 1972 and Promulgation of an Amended Act to Promote the Discovery and Production of Indigenous Petroleum and Appropriate Funds Therefor.
Note: This is the short title of the Act [See Section 1, Oil Exploration and Development Act of 1972]
The Act was signed into law on 31 December 1972. It was partially amended by Presidential Decree No. 1857, An Act Granting New Incentives to Petroleum Service Contractors, and For This Purpose Amending Certain Sections of Presidential Decree Numbered Eighty-Seven, As Amended, Otherwise Known as the “Oil Exploration and Development Act of 1972”, which was signed into law on 1 January 1983.