"Exxon Mobil is prioritising near-term capital spend on the most advantaged assets with the lowest cost of supply in the portfolio including developments in Guyana, Brazil and the U.S. Permian Basin," Preba Arkaah, a spokesman for Exxon in Ghana, said in an email.
Representatives of Ghana's energy ministry and petroleum regulatory agency could not be immediately reached for comment.
Exxon Mobil acquired the rights to explore the Deepwater Cape Three Points block in 2018. The U.S. based company held an 80% interest in the concession, while state-run Ghana National Petroleum Corporation held 15%.
The sale appears to be a part of a shift in the company's West Africa strategy, with Savannah Energy having announced on Wednesday that it is in talks with Exxon to acquire its assets in Chad and Cameroon.
Ghana, which exports cocoa and gold, began commercial production in late 2010 from its flagship Jubilee reserves, which sit between the Cape Three Points and Tano offshore blocks.
(Reporting by Cooper Inveen;Editing by Bate Felix and David Evans)