This treaty was a dark page in Iran’s history, containing a document involving Great Britain and Persia (Iran) and centered around drilling rights of the Anglo-Persian Oil Company. It was never ratified by the Majlis. The “agreement” was issued by British Foreign Secretary Earl Curzon to the Persian government in August of 1919. It stated a guarantee of British access to Iranian oil fields (including five northern provinces formerly under the Russian sphere of influence). Eventually, the Anglo-Persian agreement was formally denounced by the Iranian Parliament (Majlis) on June 22, 1921.