STILLWATER, Okla., April 24, 2013 (GLOBE NEWSWIRE) -- Southwest Bancorp, Inc. (Nasdaq:OKSB) (Nasdaq:OKSBP), ("Southwest"), today reported net income available to common shareholders for the first quarter of 2013 of $2.4 million, or $0.12 per diluted share, compared to $1.0 million, or $0.05 per diluted share, for the fourth quarter of 2012. Mark Funke, President and CEO, stated, "We are reporting another quarter of earnings with $2.4 million in net income for the quarter, an increase from the $1.0 million in the fourth quarter of 2012. "2013 will continue to be a positive rebuilding year for Southwest. During the first quarter several new talented bankers were added into key commercial lending, treasury management, and mortgage positions, building a base for future revenue generation and more diversification in the loan portfolio. We worked to identify weakness in certain segments of the loan portfolio and other real estate and took aggressive actions to address these issues. Improved asset quality and building a base of consistent, conservative, and sustainable earnings growth will remain key focus points in 2013. Southwest remains significantly well capitalized allowing us to focus on long term improvements in our company while continuing to serve and support our communities and loyal customer base." Financial Overview Unless otherwise indicated, the following discussion excludes "covered" assets, which are subject to loss sharing agreements with the FDIC. For information on covered versus noncovered assets, please see the accompanying unaudited financial statement and tables. Condition: At March 31, 2013, total assets were $2.1 billion, down $30.6 million, or 1%, from December 31, 2012, and total loans were $1.3 billion, down $51.5 million, or 4%, from December 31, 2012, primarily in commercial real estate loans. Investment securities decreased $11.5 million, or 3%, to $365.6 million as of March 31, 2013, from $377.1 million as of December 31, 2012. The investment portfolio is managed to provide safety, liquidity, and collateral for public funds and borrowings. The investment portfolio continues to be managed in compliance with the current investment policy, including interest rate and liquidity risk stress testing, and the average duration of the portfolio not exceeding four years.