2011. In this annual information form - Encana

Texas
Texas is a key resource play with current operations primarily located in East Texas. Operations in East Texas
are characterized as a gas play containing tight gas with multi-zone targets in the Bossier and Cotton Valley
zones, as well as shale gas in the Haynesville and Mid-Bossier horizons.
In December 2011, Encana closed the majority of the sale of its North Texas natural gas producing assets from
the Barnett shale in the Forth Worth Basin for proceeds of $836 million. On February 7, 2012, Encana received
additional proceeds of $91 million. The remainder of the sale, for proceeds of approximately $24 million, is subject
to completion of additional closing conditions and is expected to close in the first quarter of 2012.
In 2011, Encana drilled approximately 41 net wells in Texas and production after royalties averaged
approximately 376 MMcf/d of natural gas and approximately 0.3 Mbbls/d of oil and NGLs. In 2011, production
after royalties for the North Texas producing assets disposed of totaled approximately 90 MMcf/d of natural gas
and approximately 0.2 Mbbls/d of oil and NGLs. At December 31, 2011, Encana controlled approximately 238,000
gross undeveloped acres (171,000 net acres).
Haynesville
The Haynesville shale is a key resource play located in Louisiana. Encana drilled its first wells in 2006 and has
continued to develop the lands using a multi-well pad approach in key areas. Encana has entered into joint
venture agreements with unrelated third parties to explore and develop the assets in this area.
In 2011, Encana drilled approximately 87 net wells in the area and production after royalties averaged
approximately 508 MMcf/d of natural gas. The majority of the development activity in the area focuses on the
maximization of gas recovery in Haynesville and Mid-Bossier horizons.
At December 31, 2011, Encana controlled approximately 201,000 gross undeveloped acres (121,000 net acres),
with the majority of the leaseholds in North Louisiana being located in the DeSoto and Red River parishes.
Certain Haynesville undeveloped acreage is subject to leases that will expire over the next several years unless
production is established on the acreage held.
Other Activity
Encana has established a significant land position in the Collingwood/Utica shale play located in Michigan. At
December 31, 2011, Encana controlled approximately 430,000 net undeveloped acres. Encana successfully
drilled and completed two net horizontal wells in 2011, with an effective horizontal length ranging between 5,300
feet and 7,500 feet.
In 2011, Encana established a significant land position in the Tuscaloosa Marine Shale oil play located in
Louisiana and Mississippi, and holds approximately 212,000 net acres in this play as at December 31, 2011.
Encana successfully completed two horizontal wells, with effective horizontal lengths of approximately 5,000 feet
and 7,500 feet, respectively. In 2012, the Company plans to drill six gross evaluation wells in the area.
Encana holds approximately 48,000 net acres in the DJ Basin located in Northern Colorado. The primary
formation targets in the basin are the Codell, J-Sand and the Niobrara, the latter consisting of potential natural
gas streams with associated liquids. In 2011, Encana successfully drilled and completed five horizontal wells in
the Niobrara to test the economic feasibility of the formation. Additional wells are planned for 2012 to help define
lateral orientation and length. In 2012, the Company plans to drill 10 gross evaluation wells in the area.
Encana Corporation
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Annual Information Form (prepared in US$)