Venezuelan President Nicolas Maduro plans to replace Oil Minister Tareck El Aissami – a key ruling party official who also serves Venezuela’s OPEC representative and board member of the state oil company – because of health issues, eight sources close to the decision said. In recent weeks, El Aissami’s health has deteriorated, which could render him unable to fulfill his ministerial duties at least temporarily, according to the sources, all of whom asked not to be identified because of the sensitivity of the matter. The minister – who is credited with helping Venezuela weather U.S. sanctions – recently underwent major surgeries, according to three of the people. Four of the sources said that Maduro may appoint his ally Asdrubal […]