Glenn joined XTO in January 2015, after serving as senior vice president, upstream, Imperial Oil Limited and president, Imperial Oil Resources, since July 2010.
A native of Austin, Texas, he graduated from Texas A&M University in 1986 with a Bachelor of Science degree in petroleum engineering.
Glenn joined Mobil Oil Corporation in 1986 as an operations/completions engineer and progressively held more responsible positions in the company. In 1994, he became Liquefied Natural Gas (LNG) marketing manager in Doha, Qatar.
Following the Exxon and Mobil merger, Glenn became ExxonMobil's UK joint venture manager in London, in 2001. The following year he was appointed U.S. equity crude sales manager in Fairfax, Va.
Glenn became operations manager with ExxonMobil Production Company in 2004, based in Houston, responsible for approximately one-third of ExxonMobil’s operated production in the United States.
In 2006, Glenn was appointed president, ExxonMobil Canada Limited, and production manager for ExxonMobil Canada East, responsible for ExxonMobil's East Coast Canadian offshore business.
Glenn served as chair on the Canadian Association of Petroleum Producers (CAPP) Board of Governors, and he is a member of the Board of Governors Compensation and Audit committees.
Glenn and his wife Ellen live in Fort Worth, Texas, and have three children attending college.