US SB3621

Prohibits all U.S. government funds from being used to finance, subsidize, insure, guarantee, or otherwise support Venezuela's oil infrastructure or petroleum sector development, maintenance, or expansion

Covered activities include construction or repair of oil/gas infrastructure, real property purchases, insurance costs, loan guarantees, tax incentives, royalty relief, and payments to corporations

Bans U.S. government officers and employees from providing advocacy or support for Venezuela's petroleum sector at international financial institutions, multilateral organizations, or diplomatic forums

Exception allows expenditures if explicitly authorized by a future Act of Congress passed after this bill's enactment

Requires the Secretary of State to submit annual reports to congressional committees (starting within 180 days) describing any Venezuela oil-related expenditures and certifying compliance with the Act