| 31. | In the early 1900s, big companies began to plumb the Caddo-Pine Island oil reservoir around Vivian, Caldwell said.
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| 32. | The operating company may also inject water or gas into the oil reservoir in order to increase oil recovery.
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| 33. | Light said a witness from another team saw two pressurized canisters in the oil reservoir, one that had exploded.
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| 34. | General conclusions can not be drawn because the physical and mineralogical characteristics of the oil reservoirs reported were different.
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| 35. | Drillers continued to find new oil reservoirs throughout the 20th century, with new discoveries still occurring in the 1980s.
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| 36. | The thin red circular contour line in the middle of the map indicates the top of the oil reservoir.
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| 37. | Nansen Saleri, Saudi Aramco's oil reservoir manager, claimed the company's estimates are actually more conservative than these guidelines allow.
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| 38. | The strike caused petroleum production to fall dramatically and damaged the country's huge oil reservoirs, according to industry experts.
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| 39. | This drive frame reciprocates vertically which then drives the double acting independent oil pumps located in the oil reservoir.
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| 40. | About a half dozen other school sites are also being checked for gas that seeps up from underground oil reservoirs.
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