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The move means 1,600 Fort Worth employees will call Greater Houston their home by 2020, 1,200 of them next year.
About 350 workers will remain in XTO Energy’s central division in Fort Worth.
The company’s Suann Guthrie said the decision comes after an extensive study.
“XTO is an important part of Exxon Mobil and we will be better able to collaborate and share our expertise and experience with other businesses on the campus,” the spokeswoman said.
The move doesn’t come as a surprise to Ed Hirs, an energy economist at the University of Houston.
He said the industry has long expected XTO to be consolidated into the Exxon Mobil operations.
Exxon bought XTO Energy in 2010.
“But since then, the shale plays have become so productive that the Barnett actually is a high-cost play and so there’s really not a lot of activity in the Fort Worth Basin anymore,” Hirs said.
Currently, about 9,000 people work at Exxon Mobil’s campus near The Woodlands, according to Guthrie.