Section 1. The articles specifically listed hereunder as classified under Section 401 of Republic Act Numbered Nineteen Hundred Thirty-Seven shall pay the following rates of import duty:
T.H. No.
Description of Articles Rate of Duty
Rate of Duty
27.09
Petroleum and shale oils,crude
ad val.15%
27.10
Petroleum and shale oils, other than crude; preparations not otherwise provided for, containing not less than 70 per cent by weight of petroleum or shale oils, these oils —being the basic constituents of the preparations:
A. Light oils (e.g., petroleum other, gasoline, white spirit)
ad val. 35%
B. Medium oils (e.g., kerosene and tractor fuel)
ad val.15%
C. Heavy oils,(lubricating oils, paraffin liquid or white oils)
ad val 15%