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| Exploration is split into three operational areas: | Petroleum Production is usually split into two operational areas: | |||||
|---|---|---|---|---|---|---|
| Subsurface Exploration | Surface Exploration | Aerospace Exploration | ||||
| The Surface Production is split into three major areas: | The Subsurface Production is split into three major areas of activities: | |||||
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Routine production operations usually follow Production Strategy which is a part of Field Development Planning | .||||||