dude,
you should read your own material before posting it here. from your own link posted above:
“The Saudis extended the friendly oil facility following the nuclear tests Islamabad conducted in May 1998 to alleviate the threat of an outright default, as the country was building a debt arrears in the wake of nuclear-related sanctions imposed by the developed world.”
the initial facility was extended during the tenure of ns. so your point about last govt begging for saudi oil is nonsense. moreover because oil prices were very low during the period of first sof, the value of sof was low. saudi arabia ended this facility as soon as oil prices started rising. since your googling skills appear to good, i am sure you can find out the exact time when the facility was withdrawn.