First Keystone Corp. reported earnings results for the fourth quarter and year ended December 31, 2011. For the quarter, the company reported net income was $2,191,000 as compared to $1,971,000 for the same period in 2010, an increase of 11.2%. For the year, the company reported net income of $9,907,000 or $1.82 per share as compared to $8,961,000 or $1.65 per share in 2010. Earnings for 2011 continue to be impacted by an improving net margin. Net interest income before the provision for loan losses was $27.62 million compared to $25.41 million for the same period in 2010, an 8.7% increase.