Plains GP market cap PAGP

Share price times shares outstanding: what the whole company sells for, since 2013.

Plains GP is worth $5.7B at the close on Oct 23, 2026, at $28.61 a share.

That is up 62% over the last year and up 168% over five years.

Its highest close in our data was $6.6B in May 2015.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$5.7B	$3.8B	$5.7B	+52%
2025	$3.7B	$3.3B	$4.3B	+4%
2024	$3.6B	$3.1B	$4B	+14%
2023	$3.1B	$2.4B	$3.3B	+30%
2022	$2.4B	$2B	$2.6B	+23%
2021	$2B	$1.6B	$2.5B	+24%
2020	$1.6B	$1B	$3.5B	−55%
2019	$3.5B	$3.2B	$4.1B	+10%
2018	$3.2B	$3.2B	$4.2B	−7%
2017	$3.4B	$3B	$4.3B	−3%
2016	$3.5B	$1.4B	$3.6B	+63%
2015	$2.1B	$1.7B	$6.6B	−37%
2014	$3.4B	$3.3B	$4.3B	−3%
2013	$3.5B	$3.1B	$3.5B	n/a

Companies in Oil & Gas Midstream nearest Plains GP's size, closest first, today.

Company	Market cap
PAGPPlains GP	$5.7B
AROCArchrock	$5.1B
SWXSouthwest Gas	$6.6B
KGSKodiak Gas Services	$4.5B
KNTKKinetik	$9B
AMAntero Midstream	$9.9B
CPKChesapeake Utilities	$3.2B
DTMDT Midstream	$12.6B
CTRICenturi	$2B
GELGenesis Energy	$1.7B
WESWestern Midstream Partners	$18.6B
Peer median	$5.9B