Where are most of the oil wells found in Mexico three oil well symbols can be found on the border of which two countries?

Most of the oil wells in Mexico are found in the Gulf of Mexico region, particularly in the states of Veracruz, Tamaulipas, and Tabasco. The oil well symbols are commonly associated with the border between Mexico and the United States, where significant offshore drilling activities occur. This area is rich in petroleum resources, contributing to both countries' energy sectors.