About half a dozen international oil companies are waiting on U.S. government authorization to resume operations in Venezuela, months after their licenses were revoked amid rising tensions over the country's political crackdown and humanitarian crisis,

The licence comes with stringent conditions prohibiting any transfer of oil proceeds to the Venezuelan administration.

The United States is preparing to grant new authorizations to key partners of Venezuela's state-run PDVSA, starting with Chevron , to allow them to operate with limitations in the sanctioned OPEC nation and swap oil,

Chevron and other foreign partners are still awaiting authorizations from the US government following talks last week about fresh licenses to allow them to operate in Venezuela.

About a half dozen foreign partners of Venezuela's state-owned oil company PDVSA are awaiting authorizations from the U.S. Treasury and State departments, following talks last week about fresh licenses to allow them to operate in the sanctioned South American country,