sentences:  During 2009–2010, the company acquired four new exploration blocks (Channi Pull, Jandran west, Lakhi Rud and Mari east), covering area of around 4,795 Square kilometres.Three exploration licenses namely Khiranwala, Thatta and Thatta east were surrendered and operatorship of offshore Indus-S was transferred to BP Alpha.The company has 11,000 employees on its payroll.