Loading of four key Nigerian crudes in April will hold steady, preliminary loading programmes seen by Reuters showed, while lower demand and high freight rates continued to weigh on Angolan differentialsAmong recent offers was Kissanje at dated Brent minus 85 cents, compared to dated Brent minus $1 heard in December, showing demand had slowly picked up, a trader said.Others were Angola's Hungo crude at dated Brent minus $3…
