The primary focus of the business is providing mud logging services to petroleum exploration and production companies.

The structures there have only been revealed through deep drilling in petroleum exploration.

Humble was one of the best oil & gas finding companies in the history of petroleum exploration.

The city's population began making significant growth in 1933 thanks to the petroleum exploration in the region that lasted until the early 1960s.

Pennzoil itself would remain an independent petroleum exploration and production company.

This general collection contains materials from petroleum exploration and energy development holes.

He said other technology agreements could be expected in areas like environmental protection, petroleum exploration and industrial modernization.

An explosion of new technology came onto the market making petroleum exploration easier and cheaper.

Thus the country has taken steps to diversify the economy, and to engage in further petroleum exploration.

Other attempts to start petroleum exploration during the late 1980s and 1990s also failed.