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Last Updated: 2026
Southwestern Energy image

Southwestern Energy

Summary
History
References
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Southwestern Energy Company, an independent energy company, engages in the exploration, development, and production of natural gas, oil, and natural gas liquids (NGLs) in the United States. It operates through two segments, Exploration and Production, and Marketing. The company focuses on the development of unconventional natural gas and oil reservoirs located in Pennsylvania, West Virginia, Ohio, and Louisiana. As of December 31, 2021, it had approximately 768,050 net acres in Appalachia; a total of 1,527 wells on production; and approximately proved natural gas, oil, and NGLs reserves comprise 21,148 billion cubic feet of natural gas equivalent (Bcfe). It also engages in the marketing and transportation of natural gas, oil, and NGLs. The company serves LNG exporters, energy companies, utilities, and industrial purchasers of natural gas. Southwestern Energy Company was incorporated in 1929 and is headquartered in Spring, Texas.

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The company traces its roots to Arkansas Western Gas Company, which was established in July 1929 as a subsidiary of Southern Union Gas Company of Dallas.

In 1985, the company acquired Mustang Fuel for $200 million in stock.In 2013, the company acquired assets in the Marcellus Shale from Chesapeake Energy for $93 million.In December 2014, the company acquired 413,000 net acres in the Upper Devonian, Marcellus and Utica shales in West Virginia and Southwest Pennsylvania from Chesapeake Energy for $5.375 billion.In December 2018, the company sold its assets in the Fayetteville Shale for net proceeds of $1.65 billion.

Referencesarrow

https://en.wikipedia.org/wiki/Southwestern_Energy

https://www.crunchbase.com/organization/southwestern-energy-company

https://sec.report/CIK/0000007332

https://finance.yahoo.com/quote/SWN/

https://www.comparably.com/companies/southwestern-energy-company/mission

https://companiesmarketcap.com/largest-companies-by-revenue/

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Leadership team
M
Mr. Carl Fredrick Giesler Jr. (Exec. VP & CFO)
M
Mr. Clayton A. Carrell (Exec. VP & COO)
Products / Services
Energy, Natural Resources, Oil and Gas
Number of Employees
500 - 1000
Established
1929-01-01
Company Registration
SEC CIK number: 0000007332
Net Income
$1B – $20B
Revenue
$1B+
Traded as
NYSE:SWN
Website
https://www.swn.com
Social Media
facebookx
Last Updated: 2026
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