Venezuela crisis: Who is buying its oil now?

The United States has imposed tough sanctions on Venezuela's oil industry to put pressure on President Nicolás Maduro to step down.

Oil dominates Venezuela's economy, accounting for almost all of its export earnings.

Its biggest customers have been the US, followed by India and China.

But over the past decade, oil production has collapsed and the country is in a deep economic crisis.

So what effect are the sanctions having and who is buying its oil now?

The sanctions block US companies doing business with Venezuela's state oil company, the PDVSA, and freeze the company's assets in the United States.

These measures do not cut off imports entirely, but they do require payments to be made into accounts that Venezuela's state oil company cannot access.

Sanctions have also had an impact on access to the chemicals required to process the oil.

Venezuela's heavy crude is almost solid when it comes out of the ground, so it cannot flow through pipelines.

It needs chemicals, diluents such as naphtha, to turn into a lighter substance that can eventually be exported. Sanctions include a ban on US firms exporting diluents.

Venezuela must import these, and in recent years they have come from the US, said Shannon O'Neil, senior fellow for Latin America Studies at the Council on Foreign Relations.

Currently sitting off the Venezuelan coast are tankers holding in the region of 10 million barrels of oil, according to Kpler, which tracks commodities.

They were originally destined for the United States, but are stranded as a result of the sanctions.

Venezuela's government has been looking for new buyers for its oil and says it wants to double shipments to India.

But although there has been a recent increase in exports to India, it is not a substantial one, says Samah Ahmed, a crude oil analyst at Kpler.

Exports to China are also not encouraging and have in fact been dropping in line with a general decline in Venezuela's total production.