Yes they have.
Oil drilling often occurs on the seabed, that is, the very bottom of the ocean.
it is when they drill for oil on the coasts of the ocean
They are obtained by drilling a hole in the crust of the earth underneath the ocean.
Finding and drilling for oil deep in the ocean.
There are oil rigs on land as well as on the ocean, so drilling for oil doesn't just happen on the ocean.
Offshore versus onshore drilling is drilling for oil in the sea, usually an ocean, but can also be a lake.
because the nation wide has a clear majority of norwegains against oil drilling
In search of Fossil fuels, humans take to the sea. They build a platform in the sea, a mobile island if you will, and from there, they start drilling down in the sea floor, until they reach the oil bubble. This oil bubble gets emptied and the humans leave with their oil and their island.
In offshore drilling, rigs mine oil from under the ocean floor. The oil is then carried to the surface via large pipes, so that it can be shipped away and refined into petroleum products.
That is not answer we people of wiki answers can solve
yes
onshore is oil well drilled on land. offshore is oil well drilled in sea/ocean.