Rigs may explore for oil.Logical formLearned from87 sentences. (Oil revenues) can be increased.Logical formLearned from87 sentences. Some decades can be constituted-of-or-filled-with (oil production).Logical formLearned from87 sentences. Attacks can be on an (oil infrastructure).Logical formLearned from87 sentences. (Oil fields) can be lucrative.Logical formLearned from87 sentences. A country can be a producer of oil.Logical formLearned from87 sentences. (Oil workers) can be offshore.Logical formLearned from87 sentences. (Palm oil prices) can be in malaysian ringgits.Logical formLearned from87 sentences. An impact may pertain-to an (oil spill).Logical formLearned from86 sentences. A demand can be for (crude oil).Logical formLearned from86 sentences. An (oil export) may pertain-to a country.Logical formLearned from86 sentences. Oil may undergo concentrations.Logical formLearned from86 sentences. An (oil field) can be in a us-state.Logical formLearned from86 sentences. Oil can be strong.Logical formLearned from86 sentences. (Oil prices) may pull.Logical formLearned from86 sentences.