PSX · Phillips 66

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $211.00 to $211.05. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

This amendment is being filed to correct a typographical error in the weighted average price of the shares sold in the transaction on July 21, 2026. The original filing inaccurately reported the weighted average price as $2,110,482. As reported in this amendment, the correct weighted average price is $211.0482.

The reported sale of 3,523 shares occurred automatically pursuant to Rule 10b5-1 trading plan adopted by the reporting person on March 17, 2026.

Includes 22,620 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The options became exercisable in three equal annual installments beginning on February 5, 2020.

The reported sale of 11,021 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.00 to $190.25. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was affected.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

The stock options became exercisable in three equal annual installments beginning February 5, 2020.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $170.00 to $170.095. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

The stock options became exercisable in three equal annual installments beginning February 5, 2020.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

The stock options became exercisable in three equal annual installments beginning February 6, 2019.

The exercise of stock options and sale of shares acquired upon exercise were made solely at the direction of the reporting person's ex-spouse pursuant to a domestic relations order. The reporting person's ex-spouse will retain the after-tax proceeds from the sales.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Includes 949 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on April 1, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on April 1, 2026.

Includes 15,982 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.00 to $190.40. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was affected.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The options became exercisable in three equal annual installments beginning on February 5, 2020.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Includes 949 RSU that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Grant of Restricted Stock Units (RSUs) that convert to Phillips 66 common stock on a 1-for-1 basis. This is a prorated amount of the annual grant to reflect the new director joining the board.

The price reflected above is the average of the high and the low price of the Company's stock on March 16, 2026.

Includes 949 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Grant of Restricted Stock Units (RSUs) that convert to Phillips 66 common stock on a 1-for-1 basis. This is a prorated amount of the annual grant to reflect the new director joining the board.

The price reflected above is the average of the high and the low price of the Company's stock on March 16, 2026.

Includes 949 RSU that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.33 to $174.51. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was affected.

Includes 1,434.1768 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Includes 22,182 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $169.50 to $169.55. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was affected.

Includes 22,182 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The options became exercisable in three equal annual installments beginning on February 4, 2021.

The options became exercisable in three equal annual installments beginning on February 6, 2019.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.5 to $168.82. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The options became exercisable in three equal annual installments beginning on February 6, 2019.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reported above is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165 to $165.07. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

Includes 31,849 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Includes 30,937 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 22,182 Restricted Stock Units (RSUs), including the 7,244 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 86,991 Restricted Stock Units (RSUs), including the 29,148 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 4,720 Restricted Stock Units (RSUs), including the 1,991 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 30,937 Restricted Stock Units (RSUs), including the 7,139 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 31,849 Restricted Stock Units (RSUs), including the 11,411 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 23,008 Restricted Stock Units (RSUs), including the 8,171 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of the Company's stock on February 10, 2026.

Includes 22,620 Restricted Stock Units (RSUs), including the 7,478 RSUs reported on this Form 4, that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on February 7, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on February 6, 2026.

Includes 14,938 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on February 7, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on February 6, 2026.

Includes 14,837 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on February 7, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on February 6, 2026.

Includes 20,438 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on February 7, 2023.

The price reflected above is the average of the high and low price of the Company's stock on February 6, 2026.

Includes 15,142 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on April 1, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on February 6, 2026.

Includes 23,798 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on February 7, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on February 6, 2026.

Includes 2,729 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Represents shares withheld to satisfy tax withholding obligations in connection with the vesting of Restricted Stock Units (RSUs) granted on February 7, 2023.

The price reflected above is the average of the high and the low price of the Company's stock on February 6, 2026.

Includes 57,843 RSUs that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

The reported sale of 4,394 shares occurred automatically pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 12, 2025.

Includes 21,713 Restricted Stock Units that settle for shares of Phillips 66 common stock on a 1-for-1 basis.

Annual grant to non-employee directors of Restricted Stock Units (RSUs) that convert to Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of Phillips 66's stock on January 15, 2026.

All shares are RSUs, including shares acquired through routine dividend transactions that are exempt under Rule 16a-11.

Annual grant to non-employee directors of Restricted Stock Units (RSUs) that convert to Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of Phillips 66's stock on January 15, 2026.

Includes 2,484.5124 RSUs including shares acquired through routine dividend transactions that are exempt under Rule 16a-11.

Annual grant to non-employee directors of Restricted Stock Units (RSUs) that convert to Phillips 66 common stock on a 1-for-1 basis.

The price reflected above is the average of the high and the low price of Phillips 66's stock on January 15, 2026.

Includes 2,484.5124 RSUs that convert to Phillips 66 common stock on a 1-for-1 basis.