| 41. | Oil rigs offshore are very vulnerable and have to be protected,
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| 42. | It also has oil rigs and natural gas extraction in the eastern plains.
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| 43. | There was nothing in sight except a couple of oil rigs on the horizon.
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| 44. | Negotiators say hostages held by Nigerian strikers aboard offshore oil rigs will be released.
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| 45. | By February 1999 Coastal had seven oil rigs in operation.
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| 46. | She also provides security for the West Aquarius Oil Rig.
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| 47. | The crew returned to Houston in January to film on an offshore oil rig.
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| 48. | Baker, a 25-year oil rig veteran with Transocean, told reporters.
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| 49. | I was painting tank barrels out on the oil rigs.
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| 50. | The oil rigs had belonged to a Canadian company owned by a Serbian immigrant.
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