The Lightning have acquired defensemen Evan Oberg and Mike Kostka from the Panthers in exchange for forward James Wright and defenseman Mike Vernace today, Vice President and GM Steve Yzerman announced. Oberg has played in 12 games with the San Antonio Rampage of the AHL this season, notching two assists with 14 penalty minutes. He has played in 125 career AHL games with the Rampage, the Rochester Americans and the Manitoba Moose. Kostka has appeared in 18 games with San Antonio this season, recording two goals and six points. He has played in 255 career AHL games with the Rampage, Rochester and the Portland Pirates. Kostka was signed as an undrafted free agent by the Buffalo Sabres on March 23, 2008.