Saudi Arabia is the only nation with much spare oil production capacity , an anomaly that originated in the 1970 's when the American owners of Aramco , the energy concern now controlled by the government in Riyadh , invested heavily in drilling .
Saudi Arabia /location/location/contains Riyadh
Saudi Arabia /location/country/capital Riyadh
NNP NNP VBZ DT JJ NN IN JJ JJ NN NN NN , DT NN WDT VBD IN DT CD POS WRB DT JJ NNS IN NNP , DT NN NN RB VBN IN DT NN IN NNP , VBD RB IN NN .
Saudi Arabia
LOCATION
Riyadh
LOCATION
/location/location/contains
Saudi Arabia
LOCATION
Riyadh
LOCATION
/location/country/capital