[1] Fleischaker began his career in 1973 as a trial attorney for the Civil Rights Division of the United States Department of Justice.
[2] In October 2003, Governor of Oklahoma Brad Henry appointed Fleischaker as his Secretary of Energy.
Fleischaker has focused his office on developing renewable and sustainable energy resources for the state, including establishing the Oklahoma Bioenergy Center to promote the development of a biofuels industry in Oklahoma, the development and expansion of wind power and the promotion of demand side management policies at the state energy regulatory agencies.
In December 2008, Fleischaker resigned as Secretary to return to the private sector where he serves as president and chief executive officer of Jolen Operating Company.
Fleischaker has written and lectured extensively on energy policy with articles appearing in USA Today, the Washington Post, the Los Angeles Times and the Daily Oklahoman, and has presented opinion pieces on National Public Radio.