Concern can be about (oil prices).Logical formLearned from83 sentences. Oil may undergo construction.Logical formLearned from82 sentences. Effects may pertain-to an (oil spill).Logical formLearned from82 sentences. A disruption can be in (oil supplies).Logical formLearned from82 sentences. Income can be from oil.Logical formLearned from82 sentences. More control can be over an (oil supply).Logical formLearned from82 sentences. Taxes can be on an (oil industry).Logical formLearned from82 sentences. (Oil prices) may stay.Logical formLearned from82 sentences. An (oil exploration) may pertain-to a country.Logical formLearned from82 sentences. An (oil analyst) can be with a company.Logical formLearned from82 sentences. An international-political-entity may ban a country from exporting oil.Logical formLearned from82 sentences. Stability may pertain-to an (oil market).Logical formLearned from82 sentences. Crude oil may rise.Logical formLearned from82 sentences. Dozens can be constituted-of-or-filled-with (oil workers).Logical formLearned from82 sentences. An (oil group) may pertain-to the world.Logical formLearned from82 sentences.