For an oil leak in flight, a pilot responds depending on how much oil is leaking.

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This, together with restrictive labour regulations, means that there is little non-oil foreign direct investment in Iran, except for pilot projects in the free-trade zones.

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So I was joking with the pilot -- I said, so this thing runs on vegetable oil.

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Before then, Marathon Oil ( MRO) had a 50% stake in Pilot, which made the company ineligible. (For more information about eligibility, click here.) In the summer of 2009, Pilot agreed to acquire Flying J travel plazas.

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