Sui Southern Gas Company Limited (SSGCL) and Sui Northern Gas Pipelines Limited (SNGPL) have made a plea to OGRA for allowing 33 percent hike in gas prices. Sources said that both the gas companies have requested for the increase in gas prices effective from December 2008. Sources further said that OGRA would look into their requests, while determining the prices next month. It is learnt that SSGCL has asked for fixing the gas price at Rs97 per MMBTU, while SNGPL at Rs99.