SEC. 3. Sec. 106 of the Tariff and Customs Code, as amended,
is further amended by inserting a new paragraph "b" and relettering
sub-paragraph (b), (c), and (d), thereof to (c), (d), and (e),
respectively, the new paragraph (b) of the said Sec. 106 to read as
follows:
"b. On Petroleum Oils and Oils Obtained from Bituminous
Minerals, Crude Eventually Used for Generation of Electric Power and for
the Manufacture of City Gas. — On petroleum oils and oils obtained
from bituminous materials, crude oils imported by non-electric utilities
sold, directly or indirectly, in the same form or after processing, to
electric utilities for the generation of electric power and for the
manufacture of city gas, a refund or tax credit shall be allowed not
exceeding fifty per cent (50%) of the duty imposed by law upon such
oils, which shall be paid or credited under such rules and regulations
as may be prescribed by the Commissioner of Customs with the approval of
the Secretary of Finance."