BusinessPSO registers after tax profits of Rs 2.5bn in 1QFY12Shahid AbbasiNovember 1, 2011November 1, 2011 by Shahid AbbasiNovember 1, 2011November 1, 2011 Karachi: The Board of Management of Pakistan State Oil (PSO) convened on Monday at PSO House to review the company’s performance over the first quarter...