WESTBOROUGH, Mass. — Strong performances in key categories and higher gas profitability helped BJ’s Wholesale Club exceed its earnings guidance for the second quarter. The company reported net income for the period ended July 30 of $45.7 million, or 84 cents per diluted share. The company's guidance called for net income in the range of $40.5 to $42.5 million and earnings in the range of 74 cents to 78 cents per diluted share. For the second quarter of 2010, BJ's reported net income of $35.8 million, or 67 cents per diluted share.