Kerr-McGee Corp. reports net income for the 2005 fourth quarter of $2.2 billion ($18.46 per diluted common share), compared with $133.8 million ($.86 per share) for the 2004 fourth quarter. Fourth-quarter 2005 operating profit from continuing operations was $653.9 million, compared with $276.1 million for the 2004 period. Exploration and production operating profit was $633.8 million, compared with $266.5 million in the 2004 fourth quarter. Higher operating profit in 2005 reflects net pretax gains on property sales of $169.1 million compared with a net loss of $21.8 million in the prior-year quarter. Additionally, higher oil and gas…