The company has been willing to take risks, putting much of its future exploration effort in Russia.

Significant reserves remain, which have attracted exploration efforts in the 1980s and 1990s.

Surface rights in the area are controlled by a few (less than five) local residents that have thus far been cooperative with the exploration efforts.

However, he added that even with a doubling of the company's exploration effort, it would be "later in the decade" before this happened.

In recent years Standard's management had come under fire for poor acquisitions, high operating costs and expensive exploration efforts that failed.

The biggest oil companies are, at the least, treading water with their exploration efforts.

In the decades since, the area continued to be the site of successive exploration efforts.

The exploration efforts for sources of power generation are wide and diverse in Iran.

During the 1920s petroleum companies increased their exploration efforts throughout Utah.

With oil prices so low in recent years, many exploration efforts have been passed over as unprofitable.