By Pete NajarianPHILADELPHIA ( TheStreet) -- Sunoco ( SUN) surged last week and saw upside option activity Friday in the April contracts. OptionMonster's real-time systems detected 7,500 April 29 calls bought at the same second for $1.20. The buying dwarfed both the open interest of 561 contracts and the average daily volume of just 40 calls at the strike. Sunoco, which manufactures and markets various petroleum products, closed Friday at $29.21, up 2.6% on the day and more than 10% on the week. The stock has underperformed in the last year since trading over $45 in January 2009. For calls purchased Friday to be profitable, the stock would need to rise about $1, or roughly 3.4%, by the time the options expire in mid-April. The company is scheduled to report its next earnings results on May 3. At the time of publication, Najarian had no position in the stock mentioned.