Stephen A. Holditch is the Head of the Petroleum Engineering Department at Texas A&M University. From 1999-2003, Dr. Holditch was a Schlumberger Fellow where he was a Production and Reservoir Engineering advisor to the top managers within Schlumberger. Holditch was President of S. A. Holditch & Associates, Inc. from 1977 to 1999. Dr. Holditch was SPE President 2002, and he was SPE Vice President of Finance from 1998-2000. As an SPE Office, Holditch served on the SPE Board of DIrectors from 1998-2003. In addition, Dr. Holditch served as an AIME Trustee from 1997-1998. In 1995, Dr. Holditch was elected to the U.S. National Academy of Engineering (NAE). In 2006, he was elected as an SPE Honorary Member. He has published over 150 technical papers.