AIOC and the pro-western Iranian government led by Prime Minister Ali Razmara, initially resisted nationalist pressure to revise AIOC's concession terms still further in Iran's favour. In May 1949, Britain offered a "Supplemental oil agreement" to appease unrest in the country. The agreement guaranteed royalty payments would not drop below £4 million, reduced the area in which it would be allowed to drill, and promised more Iranians would be trained for administrative positions. The agreement, however, gave Iran neither a "greater voice in company's management", nor the right to audit the company books. In addition, Iranian royalties from oil were not expected to ever drop to the proposed guarantee of £4 million and the reduced area covered all of the productive oilfields. When the Iranian Prime Minister tried to argue with AIOC head Sir William Fraser, Fraser "dismissed him" and flew back to the UK. In late December 1950, word reached Tehran that the American-owned Arabian American Oil Company had agreed to share profits with Saudis on a 50-50 basis. The UK Foreign Office rejected the idea of any similar agreement for AIOC. On 7 March 1951, Prime Minister Haj Ali Razmara was assassinated by the Fada'iyan-e Islam, a Shia terrorist organization that supported nationalization of the AIOC. As Prime Minister, Razmara successfully resisted efforts by the pro-nationalization opposition party, the National Front. The public's discontent over the lack of progress regarding the AIOC and the D'Arcy concession became even more apparent from the obvious lack of mourning for Razmara. A raucous protest walkout by newspaper reporters ensued when a visiting American diplomat urged "reason as well as enthusiasm" to deal with the imminent British embargo against Iran. By 1951, Iranian support for nationalisation of the AIOC was intense. Grievances included the small fraction of revenues Iran received. In 1947 for example, the AIOC reported after-tax profits of £40 million ($112 million), but the agreement entitled Iran to just £7 million, 17.5% of profits. Britain was profiting far more off Iranian oil than Iran was. In addition, conditions for Iranian oil workers and their families were poor. The director of Iran's Petroleum Institute wrote: Nationalisation Later in March 1951, the Iranian parliament, the Majlis, voted to nationalise the Anglo-Iranian Oil Company (AIOC) and its holdings. In April, Mohammed Mossadegh, leader of the National Front and a champion of nationalisation, was elected prime minister; sparking the Abadan Crisis. Mossadegh broke off