AE - here is an article by Dr George :
Oil in Haiti
- By Dr. Georges Michel ------------
Since time immemorial, it is no secret that in the basement of the two states that share the island of Haiti and the surrounding waters, there are significant deposits of oil still untapped, it No one knows why. Already in the early twentieth century, the physical and political map of the island of Haiti, erected in 1908 by Mr. Alexander and Henry Poujol Thomasset, reported a major oil field in Haiti near source of Rio Todo El Mondo, Tributary Right Artibonite River, known today as the River Thomonde. (the word he would Thomonde de Todo El Mondo?) the deposit of oil in question straddles the boundary between the boroughs of Hinche and Mirebalais in a mountainous area located at the foot of the chain of the Black Mountains, direction due west of Thomond.
The same map indicates an oil field in the plain of Azua Dominican, a short distance north of the Dominican Republic in the town of Azua. According to our information, the latter bearing the Dominican Republic had been operating effectively in the first half of this century it had produced up to 60,000 barrels of oil per day and had been closed because it was considered to then "sufficiently profitable. Always remain in the Dominican Republic, was announced in 1982 it was discovered in front of the plain of Azua, a huge oil field offshore the coast of Barahona, but that this deposit had been left untapped.
It is only part but it supports your OP.
Olly