LOL the concept of "proof" and what the proof would be about is a comedy though. Brains washed and re-washed by US anti-Russian paranoia and propaganda 24/7 is a must nowadays.

Venezuela has very good diplomatic and commercial relations with Russia (and China and many other countries) and one of the companies that develops the Petro is Russian. Not a secret. Only Americans can be so dumb, racist and brainwashed to consider that an issue.