HESM

SEC source: 0001209191-23-017921 · doc4.xml · derivative · entry 3

Letwin Stephen J J · CIK 0001361351 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,299

Underlying: Class A Shares · 2,299 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F4 · derivative.exercise_date: The phantom shares will vest on March 8, 2024 and have no expiration date.

F4 · derivative.expiration_date: The phantom shares will vest on March 8, 2024 and have no expiration date.

SEC source: 0001209191-23-017921 · doc4.xml · derivative · entry 2

Letwin Stephen J J · CIK 0001361351 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Shares · 1,939 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The 2022 phantom shares vested on March 8, 2023 and have no expiration date.

F2 · derivative.expiration_date: The 2022 phantom shares vested on March 8, 2023 and have no expiration date.

SEC source: 0001209191-23-017921 · doc4.xml · nonDerivative · entry 1

Letwin Stephen J J · CIK 0001361351 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,657

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted in 2022 for service as director. Each phantom share is the economic equivalent of one Class A share.

SEC source: 0001209191-23-017927 · doc4.xml · derivative · entry 6

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,843

Underlying: Class A Shares · 8,843 shares

Expires not disclosed

F5 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F6 · derivative.exercise_date: The phantom shares will vest in three equal installments beginning on March 8, 2024 and have no expiration date.

F6 · derivative.expiration_date: The phantom shares will vest in three equal installments beginning on March 8, 2024 and have no expiration date.

SEC source: 0001209191-23-017927 · doc4.xml · derivative · entry 5

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,972

Underlying: Class A Shares · 2,486 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The remaining 2022 phantom shares vest ratably on March 8, 2024 and March 8, 2025 and have no expiration date.

F4 · derivative.expiration_date: The remaining 2022 phantom shares vest ratably on March 8, 2024 and March 8, 2025 and have no expiration date.

SEC source: 0001209191-23-017927 · doc4.xml · derivative · entry 4

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,721

Underlying: Class A Shares · 3,720 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The remaining 2021 phantom shares vest on March 8, 2024 and have no expiration date.

F3 · derivative.expiration_date: The remaining 2021 phantom shares vest on March 8, 2024 and have no expiration date.

SEC source: 0001209191-23-017927 · doc4.xml · nonDerivative · entry 2

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,628

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.

SEC source: 0001209191-23-017927 · doc4.xml · nonDerivative · entry 1

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,142

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.

SEC source: 0001209191-23-017926 · doc4.xml · derivative · entry 6

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,843

Underlying: Class A Shares · 8,843 shares

Expires not disclosed

F5 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F6 · derivative.exercise_date: The phantom shares will vest in three equal installments beginning on March 8, 2024 and have no expiration date.

F6 · derivative.expiration_date: The phantom shares will vest in three equal installments beginning on March 8, 2024 and have no expiration date.

SEC source: 0001209191-23-017926 · doc4.xml · derivative · entry 5

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 4,972

Underlying: Class A Shares · 2,486 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The remaining 2022 phantom shares vest ratably on March 8, 2024 and March 8, 2025 and have no expiration date.

F4 · derivative.expiration_date: The remaining 2022 phantom shares vest ratably on March 8, 2024 and March 8, 2025 and have no expiration date.

SEC source: 0001209191-23-017926 · doc4.xml · derivative · entry 4

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,721

Underlying: Class A Shares · 3,720 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The remaining 2021 phantom shares vest on March 8, 2024 and have no expiration date.

F3 · derivative.expiration_date: The remaining 2021 phantom shares vest on March 8, 2024 and have no expiration date.

SEC source: 0001209191-23-017926 · doc4.xml · nonDerivative · entry 2

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,602

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.

SEC source: 0001209191-23-017926 · doc4.xml · nonDerivative · entry 1

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,116

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.

SEC source: 0001209191-22-028082 · doc4.xml · nonDerivative · entry 1

Schoonman Geurt G · CIK 0001799427 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,249.493

F1 · price: The reported purchase transactions were executed at prices ranging from $30.76 to $30.81. The price reported above reflects the weighted average purchase price. 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 affected.

SEC source: 0001209191-22-023509 · doc4.xml · derivative · entry 7

HESS CORP · CIK 0000004447 · Director · 10% owner

Hess Investments North Dakota LLC · CIK 0001702361 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 97,923,803

Underlying: Class A Shares · 5,117,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: The Opco Class B Units may be converted at any time into Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.exercise_date: The Opco Class B Units may be converted at any time into Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.expiration_date: The Opco Class B Units may be converted at any time into Class A Shares on a one-to-one basis and have no expiration date.

F3 · ownership.nature: Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between HINDL and GIP II Blue Holding, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Represents securities held by HINDL.

SEC source: 0001209191-22-023509 · doc4.xml · derivative · entry 6

HESS CORP · CIK 0000004447 · Director · 10% owner

Hess Investments North Dakota LLC · CIK 0001702361 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 103,041,303

Underlying: Class A Shares · 6,779,661 shares

Expires not disclosed

F6 · derivative.exercise_price: The Opco Class B Units may be converted at any time into Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.exercise_date: The Opco Class B Units may be converted at any time into Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.expiration_date: The Opco Class B Units may be converted at any time into Class A Shares on a one-to-one basis and have no expiration date.

F3 · ownership.nature: Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between HINDL and GIP II Blue Holding, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Represents securities held by HINDL.

SEC source: 0001209191-22-023509 · doc4.xml · nonDerivative · entry 4

HESS CORP · CIK 0000004447 · Director · 10% owner

Hess Investments North Dakota LLC · CIK 0001702361 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 97,923,803

F5 · kind: Reflects the cancellation for no consideration of Class B Shares in connection with the conversion of the Opco Class B Units into Class A Shares.

F2 · ownership.nature: Represents securities held by Hess Midstream GP LP. HINDL is an indirect, wholly owned subsidiary of Hess Corporation, a publicly traded company listed on the New York Stock Exchange. As a result, Hess Corporation may be deemed to beneficially own the securities held of record by HINDL and Hess Midstream GP LP. Hess Corporation disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

F3 · ownership.nature: Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between HINDL and GIP II Blue Holding, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0001209191-22-023509 · doc4.xml · nonDerivative · entry 3

HESS CORP · CIK 0000004447 · Director · 10% owner

Hess Investments North Dakota LLC · CIK 0001702361 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F3 · ownership.nature: Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between HINDL and GIP II Blue Holding, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Represents securities held by HINDL.

SEC source: 0001209191-22-023509 · doc4.xml · nonDerivative · entry 2

HESS CORP · CIK 0000004447 · Director · 10% owner

Hess Investments North Dakota LLC · CIK 0001702361 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 5,117,500

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · ownership.nature: Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between HINDL and GIP II Blue Holding, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

F4 · ownership.nature: Represents securities held by HINDL.

SEC source: 0001209191-22-023509 · doc4.xml · nonDerivative · entry 1

HESS CORP · CIK 0000004447 · Director · 10% owner

Hess Investments North Dakota LLC · CIK 0001702361 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 103,041,303

F1 · kind: Reflects the cancellation for no consideration of Class B Shares in connection with Hess Midstream Operations LP repurchase of an aggregate 13,559,322 Opco Class B Units from Hess Investments North Dakota LLC (HINDL) and GIP II Blue Holding, L.P. and a subsequent cancellation of such Opco Class B Units.

F2 · ownership.nature: Represents securities held by Hess Midstream GP LP. HINDL is an indirect, wholly owned subsidiary of Hess Corporation, a publicly traded company listed on the New York Stock Exchange. As a result, Hess Corporation may be deemed to beneficially own the securities held of record by HINDL and Hess Midstream GP LP. Hess Corporation disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

F3 · ownership.nature: Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between HINDL and GIP II Blue Holding, L.P. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0000899243-22-014118 · doc4.xml · derivative · entry 7

Global Infrastructure Investors II, LLC · CIK 0001552830 · Director · 10% owner

Global Infrastructure GP II, L.P. · CIK 0001552829 · Director · 10% owner

GIP Blue Holding GP, LLC · CIK 0001702754 · Director · 10% owner

GIP II Blue Holding, L.P. · CIK 0001877329 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 97,923,803

Underlying: Class A Shares · 5,117,500 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F6 · derivative.exercise_price: The Opco Class B Units may be converted at any time in to Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.exercise_date: The Opco Class B Units may be converted at any time in to Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.expiration_date: The Opco Class B Units may be converted at any time in to Class A Shares on a one-to-one basis and have no expiration date.

F3 · ownership.nature: Represents securities held by Blue Holding.

F4 · ownership.nature: Global Infrastructure Investors II, LLC ("Global Investors") is the sole general partner of Global Infrastructure GP II, L.P. ("Global GP"), which is the sole member of GIP Blue Holding GP, LLC, ("Blue Holding GP"), which is the general partner of Blue Holding. As such, each of Global Investors, Global GP and Blue Holding GP may be deemed to beneficially own the securities held of record by Blue Holding. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0000899243-22-014118 · doc4.xml · derivative · entry 6

Global Infrastructure Investors II, LLC · CIK 0001552830 · Director · 10% owner

Global Infrastructure GP II, L.P. · CIK 0001552829 · Director · 10% owner

GIP Blue Holding GP, LLC · CIK 0001702754 · Director · 10% owner

GIP II Blue Holding, L.P. · CIK 0001877329 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 103,041,303

Underlying: Class A Shares · 6,779,661 shares

Expires not disclosed

F6 · derivative.exercise_price: The Opco Class B Units may be converted at any time in to Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.exercise_date: The Opco Class B Units may be converted at any time in to Class A Shares on a one-to-one basis and have no expiration date.

F6 · derivative.expiration_date: The Opco Class B Units may be converted at any time in to Class A Shares on a one-to-one basis and have no expiration date.

F3 · ownership.nature: Represents securities held by Blue Holding.

F4 · ownership.nature: Global Infrastructure Investors II, LLC ("Global Investors") is the sole general partner of Global Infrastructure GP II, L.P. ("Global GP"), which is the sole member of GIP Blue Holding GP, LLC, ("Blue Holding GP"), which is the general partner of Blue Holding. As such, each of Global Investors, Global GP and Blue Holding GP may be deemed to beneficially own the securities held of record by Blue Holding. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0000899243-22-014118 · doc4.xml · nonDerivative · entry 4

Global Infrastructure Investors II, LLC · CIK 0001552830 · Director · 10% owner

Global Infrastructure GP II, L.P. · CIK 0001552829 · Director · 10% owner

GIP Blue Holding GP, LLC · CIK 0001702754 · Director · 10% owner

GIP II Blue Holding, L.P. · CIK 0001877329 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 97,923,803

F5 · kind: Reflects the cancellation for no consideration of Class B Shares in connection with the conversion of the Opco Class B Units into Class A Shares.

F2 · ownership.nature: Represents securities held by Hess Midstream GP LP. Hess Infrastructure Partners GP LLC is the general partner of Hess Midstream GP LLC, which is the general partner of Hess Midsteam LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between Hess Investments North Dakota LLC and GIP II Blue Holding, L.P. ("Blue Holding"). As such, each of the foregoing entities may be deemed to beneficially owned the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0000899243-22-014118 · doc4.xml · nonDerivative · entry 3

Global Infrastructure Investors II, LLC · CIK 0001552830 · Director · 10% owner

Global Infrastructure GP II, L.P. · CIK 0001552829 · Director · 10% owner

GIP Blue Holding GP, LLC · CIK 0001702754 · Director · 10% owner

GIP II Blue Holding, L.P. · CIK 0001877329 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F3 · ownership.nature: Represents securities held by Blue Holding.

F4 · ownership.nature: Global Infrastructure Investors II, LLC ("Global Investors") is the sole general partner of Global Infrastructure GP II, L.P. ("Global GP"), which is the sole member of GIP Blue Holding GP, LLC, ("Blue Holding GP"), which is the general partner of Blue Holding. As such, each of Global Investors, Global GP and Blue Holding GP may be deemed to beneficially own the securities held of record by Blue Holding. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0000899243-22-014118 · doc4.xml · nonDerivative · entry 2

Global Infrastructure Investors II, LLC · CIK 0001552830 · Director · 10% owner

Global Infrastructure GP II, L.P. · CIK 0001552829 · Director · 10% owner

GIP Blue Holding GP, LLC · CIK 0001702754 · Director · 10% owner

GIP II Blue Holding, L.P. · CIK 0001877329 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 5,117,500

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · ownership.nature: Represents securities held by Blue Holding.

F4 · ownership.nature: Global Infrastructure Investors II, LLC ("Global Investors") is the sole general partner of Global Infrastructure GP II, L.P. ("Global GP"), which is the sole member of GIP Blue Holding GP, LLC, ("Blue Holding GP"), which is the general partner of Blue Holding. As such, each of Global Investors, Global GP and Blue Holding GP may be deemed to beneficially own the securities held of record by Blue Holding. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0000899243-22-014118 · doc4.xml · nonDerivative · entry 1

Global Infrastructure Investors II, LLC · CIK 0001552830 · Director · 10% owner

Global Infrastructure GP II, L.P. · CIK 0001552829 · Director · 10% owner

GIP Blue Holding GP, LLC · CIK 0001702754 · Director · 10% owner

GIP II Blue Holding, L.P. · CIK 0001877329 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 103,041,303

F1 · kind: Reflects the cancellation for no consideration of Class B Shares in connection with Hess Midstream Operations LP's repurchase of an aggregate 13,559,322 Opco Class B Units from Hess Investments North Dakota LLC ("HINDL") and GIP II Blue Holding, L.P. and a subsequent cancellation of such Opco Class B Units.

F2 · ownership.nature: Represents securities held by Hess Midstream GP LP. Hess Infrastructure Partners GP LLC is the general partner of Hess Midstream GP LLC, which is the general partner of Hess Midsteam LP. Hess Infrastructure Partners GP LLC is a 50/50 joint venture between Hess Investments North Dakota LLC and GIP II Blue Holding, L.P. ("Blue Holding"). As such, each of the foregoing entities may be deemed to beneficially owned the securities held of record by Hess Midstream GP LP. Each such entity disclaims beneficial ownership of such securities except to the extent of their pecuniary interest therein.

SEC source: 0001209191-22-023512 · doc4.xml · nonDerivative · entry 2

Hess Infrastructure Partners GP LLC · CIK 0001797016 · Director · 10% owner

Hess Midstream GP LLC · CIK 0001797015 · Director · 10% owner

Hess Midstream GP LP · CIK 0001797014 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 195,847,606

F3 · kind: Reflects the cancellation for no consideration of Class B Shares in connection with the conversion of the Opco Class B Units into Class A Shares.

F2 · ownership.nature: Represents securities held by Hess Midstream GP LP. Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream GP LP. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP.

SEC source: 0001209191-22-023512 · doc4.xml · nonDerivative · entry 1

Hess Infrastructure Partners GP LLC · CIK 0001797016 · Director · 10% owner

Hess Midstream GP LLC · CIK 0001797015 · Director · 10% owner

Hess Midstream GP LP · CIK 0001797014 · Director · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnote

Disclosed balance after: 206,082,606

F1 · kind: Reflects the cancellation for no consideration of Class B Shares in connection with Hess Midstream Operations LP repurchase of an aggregate 13,559,322 Opco Class B Units from Hess Investments North Dakota LLC and GIP II Blue Holding, L.P. and a subsequent cancellation of such Opco Class B Units.

F2 · ownership.nature: Represents securities held by Hess Midstream GP LP. Hess Infrastructure Partners GP LLC is the sole member of Hess Midstream GP LLC, which is the general partner of Hess Midstream GP LP. As such, each of the foregoing entities may be deemed to beneficially own the securities held of record by Hess Midstream GP LP.

SEC source: 0001209191-22-018914 · doc4.xml · nonDerivative · entry 2

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,422

F2 · kind: Shares sold solely to satisfy tax withholding upon settlement of phantom shares

SEC source: 0001209191-22-018911 · doc4.xml · nonDerivative · entry 2

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,396

F2 · kind: Shares sold solely to satisfy tax withholding upon settlement of phantom shares.

SEC source: 0001209191-22-018914 · doc4.xml · derivative · entry 3

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,781

Underlying: Class A Shares · 7,781 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The remaining 2020 phantom shares vests on March 13, 2023 and have no expiration date.

F3 · derivative.expiration_date: The remaining 2020 phantom shares vests on March 13, 2023 and have no expiration date.

SEC source: 0001209191-22-018914 · doc4.xml · nonDerivative · entry 1

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 39,395

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.

SEC source: 0001209191-22-018911 · doc4.xml · derivative · entry 3

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,781

Underlying: Class A Shares · 7,781 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The remaining 2020 phantom shares vests on March 13, 2023 and have no expiration date.

F3 · derivative.expiration_date: The remaining 2020 phantom shares vests on March 13, 2023 and have no expiration date.

SEC source: 0001209191-22-018911 · doc4.xml · nonDerivative · entry 1

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,849

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.

SEC source: 0001209191-22-018056 · doc4.xml · nonDerivative · entry 4

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,068

F3 · kind: The reported purchase transactions were executed at prices ranging from $32.36 to $32.69. The price reported above reflects the weighted average purchase price. 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.

SEC source: 0001209191-22-018060 · doc4.xml · nonDerivative · entry 3

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,614

F2 · kind: Shares sold solely to satisfy tax withholding upon settlement of phantom shares

SEC source: 0001209191-22-018056 · doc4.xml · nonDerivative · entry 3

Gatling John A. · CIK 0001702312 · President and COO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 65,557

F2 · kind: Shares sold solely to satisfy tax withholding upon settlement of phantom shares

SEC source: 0001209191-22-018054 · doc4.xml · derivative · entry 3

NIEMIEC DAVID W · CIK 0001102903 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,939

Underlying: Class A Shares · 1,939 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F4 · derivative.exercise_date: The phantom shares shall vest on March 8, 2023 and have no expiration date.

F4 · derivative.expiration_date: The phantom shares shall vest on March 8, 2023 and have no expiration date.

SEC source: 0001209191-22-018054 · doc4.xml · derivative · entry 2

NIEMIEC DAVID W · CIK 0001102903 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Shares · 2,902 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The 2021 phantom shares vested on March 8, 2022 and have no expiration date.

F2 · derivative.expiration_date: The 2021 phantom shares vested on March 8, 2022 and have no expiration date.

SEC source: 0001209191-22-018054 · doc4.xml · nonDerivative · entry 1

NIEMIEC DAVID W · CIK 0001102903 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,822

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted in 2021 for service as director. Each phantom share is the economic equivalent of one Class A share.

SEC source: 0001209191-22-018058 · doc4.xml · derivative · entry 3

REDDY J PATRICK · CIK 0001181025 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,939

Underlying: Class A Shares · 1,939 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F4 · derivative.exercise_date: The phantom shares will vest on March 8, 2023 and have no expiration date.

F4 · derivative.expiration_date: The phantom shares will vest on March 8, 2023 and have no expiration date.

SEC source: 0001209191-22-018058 · doc4.xml · derivative · entry 2

REDDY J PATRICK · CIK 0001181025 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Shares · 2,902 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The phantom shares vested on March 8, 2022 and have no expiration date.

F2 · derivative.expiration_date: The phantom shares vested on March 8, 2022 and have no expiration date.

SEC source: 0001209191-22-018058 · doc4.xml · nonDerivative · entry 1

REDDY J PATRICK · CIK 0001181025 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,732

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted in 2021 for service as director. Each phantom share is the economic equivalent of one Class A share.

SEC source: 0001209191-22-018055 · doc4.xml · derivative · entry 3

Letwin Stephen J J · CIK 0001361351 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,939

Underlying: Class A Shares · 1,939 shares

Expires not disclosed

F3 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F4 · derivative.exercise_date: The phantom shares will vest on March 8, 2023 and have no expiration date.

F4 · derivative.expiration_date: The phantom shares will vest on March 8, 2023 and have no expiration date.

SEC source: 0001209191-22-018055 · doc4.xml · derivative · entry 2

Letwin Stephen J J · CIK 0001361351 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Shares · 2,902 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_date: The phantom shares vested on March 8, 2022 and have no expiration date.

F2 · derivative.expiration_date: The phantom shares vested on March 8, 2022 and have no expiration date.

SEC source: 0001209191-22-018055 · doc4.xml · nonDerivative · entry 1

Letwin Stephen J J · CIK 0001361351 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 24,718

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted in 2021 for service as director. Each phantom share is the economic equivalent of one Class A share.

SEC source: 0001209191-22-018060 · doc4.xml · derivative · entry 6

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,458

Underlying: Class A Shares · 7,458 shares

Expires not disclosed

F5 · derivative.exercise_price: Each phantom share is the economic equivalent of one Class A Share.

F6 · derivative.exercise_date: The phantom shares will vest in three equal installments beginning on March 8, 2023 and have no expiration date.

F6 · derivative.expiration_date: The phantom shares will vest in three equal installments beginning on March 8, 2023 and have no expiration date.

SEC source: 0001209191-22-018060 · doc4.xml · derivative · entry 5

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,441

Underlying: Class A Shares · 3,720 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F4 · derivative.exercise_date: The remaining 2021 phantom shares vest ratably on March 8, 2023 and March 8, 2024 and have no expiration date.

F4 · derivative.expiration_date: The remaining 2021 phantom shares vest ratably on March 8, 2023 and March 8, 2024 and have no expiration date.

SEC source: 0001209191-22-018060 · doc4.xml · derivative · entry 4

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Shares · 3,662 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · derivative.exercise_date: The 2019 phantom shares vested on March 8, 2022 and have no expiration date.

F3 · derivative.expiration_date: The 2019 phantom shares vested on March 8, 2022 and have no expiration date.

SEC source: 0001209191-22-018060 · doc4.xml · nonDerivative · entry 2

Stein Jonathan C. · CIK 0001702288 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,384

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Class A shares acquired upon settlement of phantom shares granted under Hess Midstream's 2017 Long Term Incentive Plan.