| 21. | Yme was affected because it uses a drilling rig as a support vessel.
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| 22. | They are also used to transport supplies to and from offshore drilling rigs.
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| 23. | Stands are emplaced inside of the " board " of the drilling rig.
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| 24. | The roughly 300 troops stationed here wear patches featuring an oil drilling rig.
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| 25. | Now every drilling rig for miles is booked in advance.
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| 26. | Disappointingly to the company, the drilling rig produces no oil.
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| 27. | If rock is hit, retry a few feet away or get a drilling rig.
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| 28. | Semi-submersibles are the most common type of offshore drilling rig.
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| 29. | The companies have kept five drilling rigs working there constantly.
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| 30. | Most of the industrial action is taking place on drilling rigs, not production platforms.
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