Newmont Mining Corp. said Friday that its chief financial officer, Russell Ball, will leave the company on May 2 and Thomas Mahoney, 58, will become the gold miner's interim CFO on that date.<br />Newmont (NYSE: NEM) is based in Greenwood Village. Mahoney has been Newmont's vice president and treasurer since 2002.<br />The company said in February it would start a search for a successor for Ball, who continued to serve as Newmont's CFO since then. Mahoney will hold the position while Newmont continues its employment search, the company said.<br />Newmont's leadership has undergone a change in recent months, with the company announcing in December that Gary Goldberg will succeed Richard O’Brien as CEO on March 1. Prior to being named CEO, Goldberg was the company’s president and chief operating officer.<br />Goldberg retained the president’s title and also joined the board.<br />Newmont said it would increase Mahoney’s salary by $20,000 for each month that he serves as CFO, and a total target cash bonus increase from 60 percent to 90 percent of eligible earnings for each month that he holds the position.