Assertion: sanction | /r/Causes | decline
Facets:
value: in oil production
type: OTHER
value: due to reduced access to technologies
type: CAUSE
Source sentences:
text: Sanctions have reduced Iran's access to products needed for the oil and energy sectors, have prompted many oil companies to withdraw from Iran, and have also caused a decline in oil production due to reduced access to technologies needed to improve their efficiency.[citation needed]According to Undersecretary of State William Burns, Iran may be annually losing as much as $60 billion in energy investment.