Surtax exemption for foreign oil partners: government exempts foreign companies partnered with state from companies' surtax. The Central Government directs that no surtax shall be payable by foreign companies which have entered into agreements for association or participation with the Government or an authorised person in businesses of prospecting for, extracting, or producing mineral oil; 'foreign company' is as defined in the Income-tax Act and 'mineral oil' includes petroleum and natural gas.