Nigeria is withdrawing civil claims totaling $1.1 billion against energy giant Eni SpA. : Nigeria is withdrawing civil claims totaling $1.1 billion against energy giant Eni SpA, ending a long battle in Italian courts over allegations of corruption in an oil-field deal. The West African country’s justice ministry will waive the claims before Italy’s highest court “unconditionally” and “with immediate effect” no later than Nov. 17, according to a letter seen by Bloomberg.