Southwestern Energy
Expand Energy Corporation (known as Chesapeake Energy until 2024) is the largest independent natural gas producer in the U.S., based on net daily production. Headquartered in Spring, Texas, the company operates in the Appalachian Basin of the Marcellus Formation in Pennsylvania and West Virginia, as well as the Haynesville Shale in Northwestern Louisiana. In 2025, the company produced 7,183 MMcfe of natural gas per day. In 2025, 42% of production was from the Haynesville Shale, 36% of production was from Northeast Appalachia, and 22% of production was from Southwest Appalachia. As of December 31, 2025, the company had 25,880 Bcf of proved reserves. It also had interests in 6,600 gross productive wells.
What If You Bought SWN Earlier?
Estimate based on split history only. Excludes dividends, fees, taxes, and intraday movement.
Stock Split History
Newest split first. Cumulative multiple = compounded growth from that date to today.
| Split Date | Price Before | Ratio | Split Multiple | Cumulative |
|---|---|---|---|---|
| Mar 26, 2008 | — | 2-for-1 | 2× | 2× |
Southwestern Energy Market Cap Timeline
Validated annual market-cap history is available from 1996. Split markers cover all 1 recorded split. Filled dots have market-cap data for that year; hollow dots mark split years outside market-cap source coverage.