Final answer:
The specific country's national oil company seeking 75/25 profit split deals in the Middle East is not mentioned. Historical instances of oil agreements in the region involve companies like BP in Iran and American oil companies in Arabia.
Step-by-step explanation:
The country whose national oil company attempted deals with Middle Eastern countries at 75/25 profit splits, with the Middle Eastern countries receiving 75%, was not specified in the provided references. However, historically significant agreements involving oil reserves and profit sharing in the Middle East include the Anglo-Persian Oil Company (now BP) in Iran and the US oil companies' involvement in eastern Arabia after 1933. The geopolitical landscape of the Middle East has been significantly influenced by oil since it was discovered in the region, leading to the formation of OPEC in the 1960s and various shifts in control and profit-sharing arrangements.