As indicated the US oil companies are currently being cautious and waiting for assurances and guarantees from Trump.
Trump is full of bluster stating on social media Venezuela, without a plan or agreements in place "will be turning over" up to 50 million barrels of oil - worth about $2.8bn (£2.1bn) - to the US, adding he would control the money raised and use it to benefit the people of Venezuela and the US. He said the US oil industry would be "up and running" in Venezuela within 18 months and that he expected huge investments to pour into the country. However Trump has not yet met with the US oil industry.
Analysts have indicated however it could take tens of billions of dollars, and potentially a decade, to restore Venezuela's former output.
China, which has been the biggest buyer of Venezuelan oil in recent years, has also condemned Trump's announcement as well as the US's reported demands that Venezuela gives its oil exclusively to them. We have yet to see how the dynamic between Trump and China will play out.
ABC News has reported, that Trump had told Rodríguez to agree to an exclusive partnership with the US on oil production, and sever economic ties with China, Russia, Iran and Cuba. No such agreement is yet in place. Further there may yet be an election in Venezuela.
ConocoPhillips, a major US oil company that no longer has a presence in Venezuela, "is monitoring developments in Venezuela and their potential implications for global energy supply and stability", said spokesman Dennis Nuss. "It would be premature to speculate on any future business activities or investments".
Today a Chinese foreign ministry spokesperson Mao Ning said that the US's "blatant military action against Venezuela, and its demand that Venezuela prioritise the US in disposing of its oil resources, is a typical act of bullying, a serious violation of international law, a severe infringement upon Venezuela's sovereignty, and a grave damage to the rights of the Venezuelan people. I want to emphasise that the legitimate rights and interests of China and other countries in Venezuela must be protected... cooperation between China and Venezuela is the cooperation between two sovereign states, which is under protection of international law and the domestic laws of the two countries."
The situation in Venezuela is chaotic and unstable.