The drilling of modern oil wells has benefited greatly from improvements in technology. Drills can be guided horizontally, often for several miles. The drill operators can more easily avoid damaging the environment. They can also utilize a single site to drill several wells in different directions. The number of necessary drilling sites will continue to be reduced as technology further improves.

What is an additional benefit of the technology described in the passage?
A.
oil wells are more numerous
B.
oil wells last longer
C.
oil wells are smaller in size
D.
oil wells dry up faster