China is continuing to strengthen its relations with socialist Cuba in practical ways. On April 8, Radio Havana reported that: “The advance of a rice donation and the completion, with Chinese help, of the deepest oil well ever drilled in Cuba, illustrated in recent weeks the scope and relevance of ...
Hopefully this leads to things finally not only stabilizing but also impoving for Cuba in a concrete and sustainable way.
And from some quick online search it seems this well might be the oil deficit of the country by a few percent, so there is still a lot of work to be done but it is a good start/continuation of their development.