Amid demand for oil and gas legal talent in the Rocky Mountain region, Jackson Kelly has added four attorneys to its Denver office. Joining as partner is Robert Comer, who comes from International Tower Hill Mines Ltd., which he joined as general counsel in January 2012. Before that, he was a partner at Faegre Baker Daniels.

Moving to Jackson Kelly from the Houston-based law firm Burleson are Michael Jewell, who joins as counsel, and Steve Nagy and Susan Anderson, as associates.

With increased energy exploration in Colorado, firms are beefing up practices in the area. In October, Burleson boosted its Denver office by adding eight associates, bringing the attorney count there to 31. Burleson opened its Denver office in August 2011 with eight attorneys. Last year, Fox Rothschild opened a Denver office, as did Stinson Morrison Hecker and Hunsucker Goodstein.

"The additions have really helped expand Jackson Kelly’s mining and oil and gas practice in Denver," Comer said. About 80 lawyers handle mining, oil and gas matters, he said. Based in Charleston, W.Va., Jackson Kelly has about 190 lawyers in 11 offices.

Burleson did not immediately respond to a request for comment about the attorneys’ departures.