HOUSTON — Apache President and Chief Corporate Officer Roger Plank has stepped down after 32 years with the Houston-based oil and gas producer, the company announced Friday along with other leadership changes.<br /><br />Plank joined the company as an investment representative in its Minneapolis office in 1981. He later advanced to chief financial officer in 1997 and became president in 2009, according to the company.<br /><br />“In nearly 33 years at Apache, Roger has been intimately involved in Apache’s direction and profitable growth, and I have valued his insight and perspective on our business, culture and strategy,” Apache Chairman and CEO G. Steven Farris said in a written statement.<br /><br />Farris has taken the title of president.<br /><br />New CFO<br /><br />In another leadership move, Alfonso Leon has become executive vice president and chief financial officer, after serving as senior vice president and chief of staff since 2012. He joined the company in 2009, after serving as head of energy investment banking for Perella Weinberg Parnters in London and working in various roles for Royal Dutch Shell.<br /><br />Chief Financial Officer Tom Chambers has taken a new position as senior vice president of finance. He had served as chief financial officer since 2010, and has been with the company since 1995.  Prior to joining Apache, Chambers worked in the international business development group at Pennzoil Exploration and Production and in various management positions at BP.