Oil and gas exploration costs include drilling exploration costs and the non-drilling exploration costs. The non-drilling exploration costs are recorded in the income statement when incurred.

油气勘探支出包括钻井勘探支出和非钻井勘探支出。非钻井勘探支出于发生时计入当期损益。

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Drill rod and collar are key apparatus in drilling exploration and well drilling industry.

钻杆和钻铤等管状螺纹联接件是钻探和石油钻井工业中的关键设备。

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The engineering geological drilling exploration for the Jinduicheng tailings dam area is carried out to serve the heightening design of enlarging its volume.

金堆城尾矿坝为了进行加高设计而对尾矿库区进行了地质钻孔勘探。

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But that can't happen as long as the moratorium bars drilling exploration wells.

WSJ: South Africa Faces Power Shortage Despite Gas Reserves

Seismic testing has already been done on the acreage, and Chevron says it plans to start drilling exploration wells by the end of the year.

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Incidentally, inflation in drilling and exploration is running in the double digits--maybe as high as 15%.

FORBES: Magazine Article