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TULSA, Okla. (AP) _ A Tulsa convenience store owner accused of illegally hiking the price of gasoline during a December ice storm pleaded no contest Monday to three misdemeanor counts.

Mohammed Mannan, owner and operator of the M&F Mart, was charged in Tulsa County District Court in February with three counts of violating the Oklahoma Emergency Price Stabilization Act. Prosecutors allege Mannan, 38, raised the price of gasoline from $2.69 to $3.29 per gallon on Dec. 10 after an ice storm battered the state, knocking out power to more than 600,000 homes and businesses.

A telephone message left Monday with Mannan's attorney, Larry Leonard, was not immediately returned.

Under Oklahoma law, once an emergency has been declared, business owners cannot artificially raise the price of goods and services more than 10 percent above the pre-emergency price.

Mannan was ordered to serve a six-month deferred sentence, pay a $1,500 fine plus court costs and pay refunds to consumers who paid the inflated price. Customers who think they were overcharged must complete a consumer complaint form and provide a receipt, bank or credit card statement or other proof of payment, according to the state attorney general's office.

Ninety consumer calls and 39 formal complaints about possible price-gouging after the ice storm were lodged with the attorney general's office, including allegations about gasoline, hotel rooms and generators.

Copyright 2008 The Associated Press.