Phillips 66 (PSX) PEG Ratio: History & Chart

Phillips 66(PSX)

Oil & Gas Refining & Marketing · Houston, TX

$259.21+0.07 (+0.03%)

Delayed quote: Sep 9, 2026, 10:20 AM EDT

About Phillips 66

Phillips 66 operates as a diversified energy company, specializing in both manufacturing and logistics. Its comprehensive business model is structured across four primary segments: Midstream, Chemicals, Refining, and Marketing & Specialties (M&S). The Midstream division manages the vital infrastructure for transporting and processing various energy commodities. This includes moving crude oil and other feedstocks, delivering refined petroleum products to market, offering terminaling and storage solutions, and handling natural gas liquids (NGLs) through processes like transportation, storage, fractionation, export, and marketing. It also provides fee-based processing services and oversees the gathering, processing, transportation, and marketing of natural gas. The Chemicals segment is dedicated to the production and distribution of a broad spectrum of chemical products. This encompasses olefins like ethylene, aromatics and styrenics such as benzene, cyclohexane, styrene, and polystyrene, alongside various specialty chemicals. These specialty products include organosulfur compounds, solvents, catalysts, and chemicals utilized in drilling and mining operations. Through its Refining segment, Phillips 66 transforms crude oil and other feedstocks into essential petroleum products. These include different grades of gasoline, distillates, aviation fuels, and renewable fuels, processed at its network of 12 refineries located in the United States and Europe. The Marketing & Specialties (M&S) segment focuses on the procurement, resale, and marketing of refined petroleum products like gasolines, distillates, and aviation fuels, primarily serving markets in the United States and Europe. This segment also manufactures and distributes specialized products, including base oils and lubricants. Phillips 66, founded in 1875, is headquartered in Houston, Texas.

Houston, TX

12,600 employees

www.phillips66.com

Energy / Oil & Gas Refining & Marketing

Sector: Energy
Industry: Oil & Gas Refining & Marketing
CEO: Mark E. Lashier

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PSX PEG Ratio Metrics

PEG RATIO

0.10

PEG RATIO AVG TTM

N/A

PEG RATIO AVG 3Y

0.06

PEG RATIO AVG 5Y

0.05

PEG RATIO AVG 10Y

0.11

PEG RATIO AVG 15Y

0.16

PEG RATIO AVG 20Y

N/A

CURRENT VS TTM AVG

N/A

CURRENT VS 3Y AVG

+81.82%

CURRENT VS 5Y AVG

+114.29%

CURRENT VS 10Y AVG

-7.41%

CURRENT VS 15Y AVG

-38.46%

CURRENT VS 20Y AVG

N/A

SECTOR MEDIAN · ENERGY

0.99

median of 34 covered companies

CURRENT VS SECTOR MEDIAN

-89.90%

vs the sector median at left

NAME	MARKET CAP	PEG RATIO	TTM	3Y	5Y
Phillips 66 (PSX)	$103.93B	0.10	N/A	0.06	0.05
Canadian Natural Resources Limited (CNQ)vs ›	$107.64B	0.11	0.11	0.14	0.35
Valero Energy Corporation (VLO)vs ›	$109.83B	3.62	0.00	0.05	0.07
The Williams Companies, Inc. (WMB)vs ›	$92.24B	1.60	1.60	0.80	0.61
Marathon Petroleum Corporation (MPC)vs ›	$115.63B	0.39	0.39	0.20	0.13
Slb N.V. (SLB)vs ›	$86.54B	N/A	1.36	1.00	0.75
Enterprise Products Partners L.P. (EPD)vs ›	$84.96B	1.46	5.26	2.87	2.58
Suncor Energy Inc. (SU)vs ›	$81.09B	4.56	4.56	2.30	1.55
Eni S.p.A. (E)vs ›	$80.64B	2.12	2.12	1.07	0.71
EOG Resources, Inc. (EOG)vs ›	$78.37B	0.97	0.15	0.27	0.33

NAME

MARKET CAP

PEG RATIO

TTM

Phillips 66 (PSX)

$103.93B

0.10

N/A

0.06

0.05

Canadian Natural Resources Limited (CNQ)vs ›

$107.64B

0.11

0.14

0.35

Valero Energy Corporation (VLO)vs ›

$109.83B

3.62

0.00

0.05

0.07

The Williams Companies, Inc. (WMB)vs ›

$92.24B

1.60

0.80

0.61

Marathon Petroleum Corporation (MPC)vs ›

$115.63B

0.39

0.20

0.13

Slb N.V. (SLB)vs ›

$86.54B

N/A

1.36

1.00

0.75

Enterprise Products Partners L.P. (EPD)vs ›

$84.96B

1.46

5.26

2.87

2.58

Suncor Energy Inc. (SU)vs ›

$81.09B

4.56

2.30

1.55

Eni S.p.A. (E)vs ›

$80.64B

2.12

1.07

0.71

EOG Resources, Inc. (EOG)vs ›

$78.37B

0.97

0.15

0.27

0.33

PEG Ratio FAQ

What is the PEG ratio for Phillips 66 (PSX)?

The PEG ratio for PSX stock is 0.10.

Is Phillips 66's PEG ratio high or low?

The PEG ratio of 0.10 is 114% above its 5-year average of 0.05, near the high end of its 5-year range (0.01–0.10).

What is the 3Y average PEG ratio for Phillips 66 (PSX)?

The 3Y average PEG ratio for PSX stock is 0.06.

What is the 5Y average PEG ratio for Phillips 66 (PSX)?

The 5Y average PEG ratio for PSX stock is 0.05.

What is the 10Y average PEG ratio for Phillips 66 (PSX)?

The 10Y average PEG ratio for PSX stock is 0.11.

What is the 15Y average PEG ratio for Phillips 66 (PSX)?

The 15Y average PEG ratio for PSX stock is 0.16.

DATE	PEG RATIO
2025-12-31	0.10
2022-12-31	0.01
2020-12-31	0.03
2018-12-31	0.36
2017-12-31	0.04
2014-12-31	0.22
2011-12-31	0.01
2010-12-31	0.53

DATE

PEG RATIO

2025-12-31

0.10

2022-12-31

0.01

2020-12-31

0.03

2018-12-31

0.36

2017-12-31

0.04

2014-12-31

0.22

2011-12-31

0.01

2010-12-31

0.53

PEG Ratio: 0.10

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