The correct answer is "Britain" and "Anglo-Persian Oil Company".
The Anglo-Persian Oil Company was a British company founded in 1908 after the discovery of a large oil field in the region of Masjed Soleiman in Iran. It was later nationalized by the Iranian government and renamed National Iranian Oil Company. During its first years of operations and in the wake of the First World War, the treasury of Great Britain made the strategic decision of purchasing 51% of the stake in the company.
