OglethorpePower Corp. booked fourth-quarter 2015 net margin of $6.2 millionon operating revenues of $297.6 million, according to a filing with the SEC.The company had generated $315.5 million in operating revenues and reported anegative net margin of $4.2 million in the corresponding quarter of 2014.

The company's fourth-quarter 2015 operating margin of $56.4million compared to $49.3 million in the same quarter of 2014.

For the year, net margin of $48.3 million on revenues of$1.35 billion compared to a net margin of $46.6 million on operating revenuesof $1.41 billion in 2014, results showed.