Complete the sentence about Orinoco with the correct year: The El Furrial oil field was discovered in ______, producing from late Oligocene shallow marine sandstones in an overthrusted foreland basin.

Answer and explanation

Correct answer: B. 1978

  1. Step 1: The El Furrial oil field was discovered in 1978, producing from late Oligocene shallow marine sandstones in an overthrusted foreland basin. Answer: 1978. Why not the others: 1958, 1968 and 1983 don't fit.

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