Off the coast of Nigeria, one of the world’s largest oil production ships, called the Bonga, was taking oil from a field on the ocean floor and transferring it to a tanker ship. Such transfers are routine in the offshore …

Off the coast of Nigeria, one of the world’s largest oil production ships, called the Bonga, was taking oil from a field on the ocean floor and transferring it to a tanker ship. Such transfers are routine in the offshore …