1950
Petroleum is one of Mexico natural resources but not the most important
petroleum.
Yes, it is.
petroleum
a lot of many areas in mexico produce petroleum but the biggest petroleum (oil) reserve is in the town of Tuxpan on the Gulf coast of Mexico.
The US has the most petroleum. However, demand is so high that the US has to import most of the petroleum it consumes.
It isn't: Mexico is a net exporter of crude oil.
Yes, it is.
Mexico was discovered by Spanish conquistador Hernan cortes in 1519.
1519
In a saltmine in the gulf of mexico.
Oil (petroleum)