Oil prices, notoriously vulnerable to political events, spiked as high as $40 a barrel during the Gulf War in 1991.
Oil prices werent higher during the gulf war
( z1 have-degree :polarity - :ARG1 ( z2 thing :ARG2-of ( z3 price :ARG1 ( z4 oil ) ) ) :ARG2 ( z5 high ) :ARG3 ( z6 more ) :time ( z7 war :name ( z8 name :op "Gulf" :op "War" ) ) )