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Fayetteville Shale Operations

The Fayetteville Shale is a Mississippian-age unconventional gas reservoir located on the Arkansas side of the Arkoma Basin, ranging in thickness from 50 to 550 feet and ranging in depth from 1,500 to 6,500 feet. Southwestern discovered the economic viability of the Fayetteville Shale and was the first company to drill and successfully produce its natural gas.  At December 31, 2013, Southwestern held leases for approximately 905,684 net acres in the Fayetteville Shale, and excluding acreage in the conventional Arkoma Basin, obtained its acreage at an average cost of approximately $320 per acre (average royalty interest of 15%).

As of December 31, 2013, Southwestern had spud a total of 4,110 wells in the Fayetteville Shale since its commencement in 2004, of which 3,538 were operated by Southwestern and 572 were outside-operated wells. Of these wells, 527 were spud in 2013, 491 in 2012 and 650 in 2011. Of the wells spud in 2013, 525 were designated as horizontal wells.

Over the past several years, Southwestern has seen continuous improvement in its drilling practices in the Fayetteville Shale. In 2013, Southwestern’s operated wells had an average completed well cost of $2.4 million per well, average horizontal lateral length of 5,356 feet, and an average time to drill to total depth of 6.2 days from re-entry to re-entry.

In 2014, Southwestern plans to invest approximately $900 million in the Fayetteville Shale properties, which includes participating in approximately 460 to 470 gross wells, all of which Southwestern plans to operate.


Last Updated on 02/28/2014
 
Acreage: 
905,684 net acres (12/31/13)
2013 Reserves:
4,795 Bcf (69% of total)
2013Production:
486 Bcf (74% of total)
Geologic profile:
An unconventional gas reservoir that extends across northern Arkansas from the state's western edge throughout north central Arkansas. Ranging in thickness from 50 to 550 feet and varying in depth from 1,500 to 6,500 feet, this Mississippian-age shale is the geologic equivalent of the Barnett Shale currently producing in north Texas.