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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 Energy Company discovered the economic viability of the Fayetteville Shale and was the first company to drill and successfully produce its natural gas.  At December 31, 2016, Southwestern, operating as SEECOTM, held leases for approximately 918,535 net acres in the Fayetteville Shale, and obtained its acreage at an average cost of approximately $335 per acre (average royalty interest of 13%). 

As of December 31, 2016, Southwestern had spud a total of 4,741 wells in the play since its commencement in 2004, of which 4,161 were operated by Southwestern and 580 were outside-operated wells. 

In 2016, we invested approximately $86 million to spud 4 wells, complete 34 wells and place 43 wells to sales. In 2016, Southwestern’s operated wells had an average completed well cost of $2.8 million per well and an average horizontal lateral length of 5,547 feet.

Last Updated on 04/05/2017
918,535 net acres (12/31/16)
2016 Reserves:
2,997 Bcf (57% of total)
2016 Production:
375 Bcf (43% 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.