An oil well is usually drilled into

An oil well is usually drilled into a hole in the Earth with a drilling rig.

Explanation:

In summary, a well is created by drilling a hole into the earth with a drilling rig that rotates a drill string with a bit attached. After the hole is drilled to a prescribed depth, sections of steel tubing known as casing are set in the hole (slightly smaller than the borehole) to provide an annuls for cementing. Hope this helps.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.