XTO Energy knows the X's and O's of a successful oil and gas strategy. The oil and gas exploration and production company buys and develops mostly long-lived producing properties to produce oil and gas (including extracting natural gas and from US shale and other tight formations); it also develops unproved reserves. The company's assets are mainly in Arkansas, Kansas, Louisiana, New Mexico, Oklahoma, Texas, and the Rockies; it also has assets in Appalachia. A subsidiary of Exxon Mobil since 2010, XTO Energy owns interests in about 40,000 producing oil and natural gas wells across the US.

Geographic Reach

The company operates across the US, in Montana and Pennsylvania, Utah and Louisiana, and Texas, Ohio, North Dakota, Oklahoma; and to a lesser degree in in Alaska, Arkansas, West Virginia, Wyoming, Colorado, New Mexico, and Kansas.


XTO is a leading natural gas and oil producer with expertise in developing tight gas, shale gas, coal bed methane, and unconventional oil resources. It holds more than 10 million acres in the US and owns interests in about 40,000 producing wells across the country.


In 2014, Exxon Mobil  enhanced XTO Energy's oil and natural gas portfolio through separate deals in the Permian Basin in Texas and Utica Shale in Ohio. Through an agreement with Endeavor Energy Resources, L.P., XTO will fund development to gain a major operating equity in 34,000 gross acres in the liquids-rich Wolfcamp play in Midland and Upton counties. Endeavor will continue to operate shallow production while XTO will drill and operate horizontal wells at deeper levels. The deal boosts XTO’s Permian Basin assets to more than 1.5 million net acres.

That year XTO Energy opened a 340-acre facility in southwestern Pennsylvania to recover marketable liquids from natural gas produced in Butler County.

Mergers and Acquisitions

In 2013 XTO Energy acquired the Oklahoma's Tishomingo Field (other than the Caney and upper Sycamore formations), from BNK Petroleum (US) for $148 million.

Company Background

Prior to and following its purchase by Exxon Mobil, XTO Energy has grown through acquisitions and the development of acquired properties.

Using XTO Energy as a vehicle for expanding its unconventional gas holdings in the US, in 2011 Exxon Mobil acquired Marcellus Shale gas producers Phillips Resources and TWP for $1.7 billion and wrapped their production (15 million cu. ft. of natural gas equivalent per year) into XTO Energy's operations.

XTO acquired natural gas upstream assets in the Arkansas-based Fayetteville shale play in 2010 for $575 million from Petrohawk Energy. In 2011 XTO also bought Petrohawk's midstream assets in the Fayetteville shale for some $75 million.

In 2010 the company was acquired by Exxon Mobil in a $41 billion deal, Exxon Mobil's largest purchase in decades, boosting that company's holdings in the US natural gas market.

In 2008 XTO Energy acquired $1 billion worth of oil and gas properties in Colorado, Louisiana, New Mexico, and Texas. That year it acquired Linn Energy's oil and gas properties in the Appalachian Basin for $600 million. It also purchased producing Bakken Shale properties and undeveloped acreage from Headington Oil Co. and other parties for $1.8 billion.

In 2008 the company acquired Hunt Petroleum for $4.2 billion, giving it additional assets in its core US areas. Hunt also holds rights to a section of the North Sea.

XTO Energy was founded in 1986.


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810 Houston St
Fort Worth, TX 76102-6298
Phone: 1 (817) 870-2800


  • Employer Type: Subsidiary
  • Chief Financial Officer: Carolyn Dean
  • Chief Operating Officer: Jeff Lummus
  • Chairman: Bob R. Simpson

Major Office Locations

  • Fort Worth, TX

Other Locations

  • Kenai, AK
  • Clinton, AR
  • Heber Springs, AR
  • Ozark, AR
  • Durango, CO
  • Rifle, CO
  • Lakin, KS
  • Bernice, LA
  • Dubach, LA
  • Haynesville, LA
  • Alexander, ND
  • Aztec, NM
  • Bellaire, OH
  • Mcalester, OK
  • Ringwood, OK
  • Indiana, PA
  • Montoursville, PA
  • Renfrew, PA
  • Rochester Mills, PA
  • Warrendale, PA
  • Alto, TX
  • Andrews, TX
  • Bryan, TX
  • Denver City, TX
  • Goldsmith, TX
  • Kilgore, TX
  • Longview, TX
  • Midland, TX
  • Murchison, TX
  • Sherman, TX
  • Tokio, TX
  • Tyler, TX
  • Orangeville, UT
  • Roosevelt, UT
  • Jane Lew, WV
  • La Barge, WY
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