I always felt like it was the Brits fair and square, but I understood the resentment.  Invading the country in 1941 wasn't "fair and square" though, so I can't take anyone's side.

I remember watching a black-and-white newsreel of Brits leaving Persia and being interviewed about it, and the all felt it was not only theft, but they were certain that the Persians did not have the skills or necessary supply lines needed to operate the facilities.

So from 1953 to 1979 Iran was very Westernized, under the leadership installed by the CIA, and then in 1979 the Islamic Revolution changed everything, but not back to the traditional pre-1953 secular monarchy, but into a religious fundamentalist state, something new, different, fun! ;-/