<P> Around 1891 , the first submerged oil wells were drilled from platforms built on piles in the fresh waters of the Grand Lake St. Marys ( a.k.a. Mercer County Reservoir ) in Ohio . The wells were developed by small local companies such as Bryson , Riley Oil , German - American and Banker 's Oil . </P>
<P> Around 1891 , the first submerged oil wells were drilled from platforms built on piles in the fresh waters of the Grand Lake St. Marys ( a.k.a. Mercer County Reservoir ) in Ohio . The wells were developed by small local companies such as Bryson , Riley Oil , German - American and Banker 's Oil . </P>
where was the first offshore oil well drilled
where was the first offshore oil well drilled
in the fresh waters of the Grand Lake St. Marys ( a.k.a. Mercer County Reservoir ) in Ohio
in the fresh waters of the Grand Lake St. Marys ( a.k.a. Mercer County Reservoir ) in Ohio