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Galp Energia (OTCPK:GLPEF) (OTCPK:GLPEY) said Tuesday that CEO Filipe Silva has resigned, days after a Portuguese news website reported the company's ethics committee was investigating an anonymous complaint about an alleged personal relationship between the CEO and a company manager.

Company statement late on Tuesday cites ‘family reason’ for resignation, while local media has reported of alleged investigation into Silva’s relationships with staff

Galp Energia is investigating an alleged personal relationship between Chief Executive Filipe Silva and a manager with the Portuguese oil company, Eco reported Friday. The Portuguese online outlet reported that the company’s Ethics and Conduct Committee’s probe into the relationship was due to an anonymous tip.

Portuguese oil company Galp Energia said on Tuesday that Chief Executive Filipe Silva had resigned following a company investigation into an anonymous complaint about an alleged personal relationship between him and a company manager.