(Heating oil futures) can be for delivery.Logical formLearned from68 sentences. Persons may produce oil.Logical formLearned from68 sentences. A country can be an importer of oil.Logical formLearned from68 sentences. An (oil production) can be heavy.Logical formLearned from68 sentences. A buyer may pertain-to oil.Logical formLearned from68 sentences. Oil may undergo spills.Logical formLearned from68 sentences. (Oil prices) can be a factor.Logical formLearned from68 sentences. A price of (crude oil) may rise some cents.Logical formLearned from68 sentences. (Oil prices) may hover around some dollars.Logical formLearned from67 sentences. (Oil prices) can be refined.Logical formLearned from67 sentences. (World oil prices) may rally.Logical formLearned from67 sentences. A country may sell oil.Logical formLearned from67 sentences. Oil can be troubled.Logical formLearned from67 sentences. An export may pertain-to oil.Logical formLearned from67 sentences. A mix can be constituted-of-or-filled-with oil.Logical formLearned from67 sentences.