(Oil ministers) may agree.Logical formLearned from93 sentences. (Oil shipments) can be to a country.Logical formLearned from93 sentences. Oil may begin.Logical formLearned from93 sentences. (Oil riches) may pertain-to a country.Logical formLearned from93 sentences. (Oil futures) may offer a hedge.Logical formLearned from93 sentences. A stake can be in an (oil company).Logical formLearned from93 sentences. A drop can be in (world oil prices).Logical formLearned from93 sentences. (Oil resources) may pertain-to a region.Logical formLearned from92 sentences. Oil can be scarce.Logical formLearned from92 sentences. (Oil resources) may pertain-to persons.Logical formLearned from92 sentences. Oil may rebound.Logical formLearned from92 sentences. (Heating oil) may rise.Logical formLearned from92 sentences. Oil can be a resource.Logical formLearned from92 sentences. (Oil companies) may pertain-to a us-state.Logical formLearned from92 sentences. Persons may get oil.Logical formLearned from92 sentences.