KARACHI: Pakistan Petroleum Ltd (PPL) has posted a higher profit after tax of Rs 16.618 billion for the half year ending December 31, 2010 and declared an final cash dividend of Rs 5 per share on fully paid ordinary shares and 30 percent on preference shares.According to PPL communique sent to KSE here on Monday, the pre-tax profit has surged to Rs 23.109 billion during the period under review compared to Rs 14.720 billion in the same period last year.The earning profit also climbed to Rs 13.91 compared to last year’s Rs 8.16 – APP