Exhibit 21

SUBSIDIARY LISTING OF PHILLIPS 66

At December 31, 2025


Company Name			Incorporation Location
3P Capital Insurance Company IC			US, Vermont
Asamera Oil (US) Inc.			US, Montana
C.S. Land, Inc.			US, California
Centana Intrastate Pipeline, LLC			US, Delaware
Cimarron River Pipeline, LLC			US, Delaware
Coastal Bend Propane Pipeline Holdings, LP			US, Delaware
Coastal Bend Propane Pipeline, LP			US, Delaware
Coastal Bend Y-Grade GP, LLC			US, Delaware
Coastal Bend Y-Grade Logistics, LP			US, Delaware
Coastal Bend Y-Grade Operations, LP			US, Delaware
Coastal Bend Y-Grade Pipeline, LP			US, Delaware
Coastal Bend Y-Grade Services, LP			US, Delaware
Coastal Bend Y-Grade, LP			US, Delaware
Collbran Valley Gas Gathering, LLC			US, Colorado
DCP Assets Holding GP, LLC			US, Delaware
DCP Assets Holding, LP			US, Delaware
DCP Black Lake Holdings, LP			US, Delaware
DCP Chesapeake LLC			US, Texas
DCP Cheyenne Connector, LLC			US, Delaware
DCP Grands Lacs LLC			US, Michigan
DCP Guadalupe Pipeline, LLC			US, Delaware
DCP Hinshaw Pipeline, LLC			US, Delaware
DCP Intrastate Network, LLC			US, Delaware
DCP James Lake Holding LLC			US, Delaware
DCP Litchfield, LLC			US, Michigan
DCP LP Holdings, LLC			US, Delaware
DCP Lucerne 2 Plant LLC			US, Delaware
DCP Michigan Holdings LLC			US, Delaware
DCP Michigan Pipeline & Processing LLC			US, Michigan
DCP Midstream GP, LLC			US, Delaware
DCP Midstream GP, LP			US, Delaware
DCP Midstream Holding, LLC			US, Delaware
DCP Midstream, LLC			US, Delaware
DCP Midstream Marketing, LLC			US, Delaware
DCP Midstream Operating, LLC			US, Delaware
DCP Midstream Operating, LP			US, Delaware
DCP Midstream, LP			US, Delaware
DCP New Mexico Development, LLC			US, Delaware
DCP NGL Operating, LLC			US, Delaware
DCP NGL Services, LLC			US, Delaware
DCP Operating Company, LP			US, Delaware


DCP Partners Colorado LLC			US, Delaware
DCP Partners Logistics, LLC			US, Delaware
DCP Partners MB I LLC			US, Delaware
DCP Partners MB II LLC			US, Delaware
DCP Pipeline Holding LLC			US, Delaware
DCP Raptor Pipeline, LLC			US, Delaware
DCP Receivables LLC			US, Delaware
DCP Saginaw Bay Lateral LLC			US, Delaware
DCP Sand Hills Interstate Pipeline, LLC			US, Delaware
DCP Sand Hills Pipeline, LLC			US, Delaware
DCP Services, LLC			US, Delaware
DCP South Central Texas LLC			US, Delaware
DCP Southern Hills Interstate Pipeline, LLC			US, Delaware
DCP Southern Hills Pipeline, LLC			US, Delaware
DCP Tolar Holdings LLC			US, Delaware
DCP Wattenberg Pipeline LLC			US, Delaware
DCP Wyoming Assets LLC			US, Delaware
DCP Zia Plant LLC			US, Delaware
Douglas Oil Company of California			US, California
eFuel, LLC			US, California
Hunt & Sons LLC			US, Delaware
Jackson Pipeline Company			US, Michigan
James Lake Gathering, LLC			US, Delaware
James Lake Gathering II, LLC			US, Delaware
James Lake Midstream, LLC			US, Delaware
Javelina Processing LLC			US, Delaware
JET Beteiligungs GmbH			Germany
JET Partizipations GmbH & Co. KG			Germany
JET Management Holding GmbH & Co KG			Germany
JET Management Holding Verwaltungs GmbH			Germany
JET Petrol Limited			Northern Ireland
JET Petroleum Limited			England
JET Retail UK Limited			England
JET Tankstellen Austria GmbH			Austria
JET Tankstellen Deutschland GmbH			Germany
Kansas City Retail and Convenience LLC			US, Delaware
Kayo Oil Company			US, Delaware
KHQ LLC			US, Delaware
Linden Urban Renewal Limited Partnership			US, New Jersey
Marysville Hydrocarbons Holdings, LLC			US, Delaware
Marysville Hydrocarbons LLC			US, Delaware
Merey Sweeny LLC			US, Delaware
National Helium, LLC			US, Delaware
Phillips 66 Alliance H2PL LLC			US, Delaware
Phillips 66 Aviation LLC			US, Delaware
Phillips 66 Canada Ltd.			Canada, Alberta


Phillips 66 Capital Holdings LLC			US, Delaware
Phillips 66 Carrier LLC			US, Delaware
Phillips 66 Communications Inc.			US, Delaware
Phillips 66 Company			US, Delaware
Phillips 66 Continental GmbH			Germany
Phillips 66 DAPL Holdings LLC			US, Delaware
Phillips 66 Dos Picos LLC			US, Texas
Phillips 66 Energy Trading LLC			US, Delaware
Phillips 66 ETCO Holdings LLC			US, Delaware
Phillips 66 Export Terminal LLC			US, Delaware
Phillips 66 GmbH in Liquidation			Switzerland
Phillips 66 Energy GmbH			Germany
Phillips 66 Gulf Coast Pipeline LLC			US, Delaware
Phillips 66 Gulf Coast Properties LLC			US, Delaware
Phillips 66 International Holdings Company			US, Delaware
Phillips 66 International Investments Ltd.			Cayman
Phillips 66 International Trading Pte. Ltd.			Singapore
Phillips 66 Investment Holdings LLC			US, Delaware
Phillips 66 LCR Isomerization LLC			US, Delaware
Phillips 66 Limited			England
Phillips 66 Partners GP LLC			US, Delaware
Phillips 66 Partners Holdings LLC			US, Delaware
Phillips 66 Partners LP			US, Delaware
Phillips 66 Pension Plan Trustee Limited			England
Phillips 66 Pipeline LLC			US, Delaware
Phillips 66 Project Development Inc.			US, Delaware
Phillips 66 Project Shareholder Inc.			US, Delaware
Phillips 66 Receivables LLC			US, Delaware
Phillips 66 Sand Hills LLC			US, Delaware
Phillips 66 Southern Hills LLC			US, Delaware
Phillips 66 Spectrum Corporation			US, Delaware
Phillips 66 Stillwater Retail Corporation			US, Delaware
Phillips 66 Stillwater Retail One LLC			US, Delaware
Phillips 66 Stillwater Retail Two LLC			US, Delaware
Phillips 66 Sweeny Frac 2 LLC			US, Delaware
Phillips 66 Sweeny Frac LLC			US, Delaware
Phillips 66 Sweeny-Freeport 2 Pipeline LLC			US, Delaware
Phillips 66 Sweeny-Freeport LLC			US, Delaware
Phillips 66 Treasury Limited			England
Phillips 66 TS Limited			England
Phillips 66 UK Funding Limited			England
Phillips 66 UK Holdings Limited			England


Phillips 66 WRB Partner LLC			US, Delaware
Phillips Chemical Holdings LLC			US, Delaware
Phillips Gas Company LLC			US, Delaware
Phillips Utility Gas Corporation			US, Delaware
Pioneer Investments Corp.			US, Delaware
Pioneer Pipe Line Company			US, Delaware
Qingdao Phillips 66 Energy Co. Ltd.			China
Radius Insurance Company			Cayman
Retail Holdings LLC			US, Delaware
Salt Lake Terminal Company			US, Delaware
Sentinel Transportation, LLC			US, Delaware
SHC Insurance Company			US, Texas
Spirit Insurance Company			US, Vermont
Sweeny Cogeneration LLC			US, Delaware
WesTTex 66 Pipeline LLC			US, Delaware
Willbreeze Pipeline, LLC			US, Delaware
WRB Refining LP			US, Delaware

Certain subsidiaries are not listed since, considered in the aggregate as a single subsidiary, they would not constitute a significant subsidiary at December 31, 2025.

Phillips 66 10-K