PETALING JAYA: Pakatan Rakyat de facto leader Datuk Seri Anwar Ibrahim, who is expected to become the prime minister if the opposition coalition takes over the government, said he will resign if he fails to reduce pump prices of petrol.“As soon as Pakatan Rakyat forms the government, oil prices will be reduced. I will resign if oil prices are not reduced,” he told a press conference at Parti Keadilan Rakyat’s (PKR) new headquarters here yesterday.