“If you help Cuba suck oil out of poor, starving Venezuela, you will be punished,” said Russ Dallen, a Miami-based partner at brokerage Caracas Capital Markets. “But if you promise to go and sin no more, you can get off the devastatingly powerful US sanctions list.”

https://www.washingtonpost.com/business/us-sanctions-cuban-firm-to-weaken-maduros-hold-in-venezuela/2019/07/03/24caf718-9daf-11e9-83e3-45fded8e8d2e_story.html?utm_term=.a3346d6d3b1e

https://www.miamiherald.com/news/business/article232245782.html