Kosmos Energy market cap KOS

Share price times shares outstanding: what the whole company sells for, since 2011.

Kosmos Energy is worth $1.7B at the close on Oct 23, 2026, at $2.87 a share.

That is up 114% over the last year and up 16% over five years.

Its highest close in our data was $6.3B in Oct 2011.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$1.7B	$427.1M	$1.9B	+310%
2025	$416.5M	$416.5M	$1.8B	−73%
2024	$1.5B	$1.4B	$3.1B	−50%
2023	$3.1B	$2.5B	$3.8B	+6%
2022	$2.9B	$1.9B	$3.8B	+85%
2021	$1.6B	$808.8M	$1.8B	+64%
2020	$952.8M	$246.5M	$2.6B	−58%
2019	$2.3B	$2B	$2.9B	+31%
2018	$1.7B	$1.7B	$3.8B	−35%
2017	$2.7B	$2.2B	$3.3B	−2%
2016	$2.7B	$1.4B	$2.7B	+35%
2015	$2B	$1.9B	$3.8B	−38%
2014	$3.2B	$2.8B	$4.3B	−26%
2013	$4.4B	$3.9B	$5.1B	−8%
2012	$4.7B	$3.6B	$5.7B	−1%
2011	$4.8B	$4.2B	$6.3B	n/a

Companies in Oil & Gas Exploration & Production nearest Kosmos Energy's size, closest first, today.

Company	Market cap
KOSKosmos Energy	$1.7B
MNRMach Natural Resources	$1.8B
KRPKimbell Royalty Partners	$1.9B
BKVBKV	$2.2B
REPXRiley Exploration Permian	$1.1B
GPORGulfport Energy	$2.9B
BSMBlack Stone Minerals	$3.2B
TTITetra Technologies	$789.2M
PARRPAR Pacific	$3.9B
HESMHess Midstream	$3.9B
CRKComstock Resources	$4.1B
Peer median	$2.6B