SEI

SEC source: 0001179110-21-002816 · edgar.xml · nonDerivative · entry 5

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 249,503

F7 · shares: The original Form 4, filed on March 3, 2021, is being amended by this Form 4 amendment solely to correct an administrative error, which misreported a sale that occurred on March 3, 2021 as being a total of zero shares sold when in fact 10,000 shares of the Issuer's common stock were sold. The original Form 4 also erroneously reported the amount of shares beneficially owned following the transaction as zero. The corrected transaction reflects current holdings.

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

F7 · balance_after: The original Form 4, filed on March 3, 2021, is being amended by this Form 4 amendment solely to correct an administrative error, which misreported a sale that occurred on March 3, 2021 as being a total of zero shares sold when in fact 10,000 shares of the Issuer's common stock were sold. The original Form 4 also erroneously reported the amount of shares beneficially owned following the transaction as zero. The corrected transaction reflects current holdings.

SEC source: 0001179110-21-002766 · edgar.xml · nonDerivative · entry 5

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002816 · edgar.xml · nonDerivative · entry 4

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 259,503

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002766 · edgar.xml · nonDerivative · entry 4

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 259,503

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002763 · edgar.xml · nonDerivative · entry 2

Bourg Lindsay R. · CIK 0001627954 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 45,414

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 17,232 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002763 · edgar.xml · nonDerivative · entry 1

Bourg Lindsay R. · CIK 0001627954 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,862

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002768 · edgar.xml · nonDerivative · entry 2

Zartler William A · CIK 0001520378 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 318,661

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 171,711 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002768 · edgar.xml · nonDerivative · entry 1

Zartler William A · CIK 0001520378 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 330,837

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002816 · edgar.xml · nonDerivative · entry 3

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 269,503

F4 · price: The Price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.99 to $12.36, inclusive. The reporting person undertakes to provide Solaris Oilfield Infrastructure, Inc., any security holder of Solaris Oilfield Infrastructure, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote to the Form 4. Details are available upon request.

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002816 · edgar.xml · nonDerivative · entry 2

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 281,003

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002816 · edgar.xml · nonDerivative · entry 1

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 290,743

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002767 · edgar.xml · nonDerivative · entry 2

Durrett Cynthia M. · CIK 0001705383 · Director · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 103,311

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 59,415 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002767 · edgar.xml · nonDerivative · entry 1

Durrett Cynthia M. · CIK 0001705383 · Director · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 108,181

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002766 · edgar.xml · nonDerivative · entry 3

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 269,503

F4 · price: The Price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $11.99 to $12.36, inclusive. The reporting person undertakes to provide Solaris Oilfield Infrastructure, Inc., any security holder of Solaris Oilfield Infrastructure, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote to the Form 4. Details are available upon request.

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002766 · edgar.xml · nonDerivative · entry 2

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 281,003

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 118,827 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002766 · edgar.xml · nonDerivative · entry 1

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 290,743

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002765 · edgar.xml · nonDerivative · entry 2

Price Kelly L. · CIK 0001705397 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 220,272

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 92,020 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002765 · edgar.xml · nonDerivative · entry 1

Price Kelly L. · CIK 0001705397 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 228,795

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002764 · edgar.xml · nonDerivative · entry 2

Powell Christopher M · CIK 0001710164 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 40,968

F2 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F3 · balance_after: Includes 20,324 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-21-002764 · edgar.xml · nonDerivative · entry 1

Powell Christopher M · CIK 0001710164 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,340

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in three equal annual installments on the first three anniversaries of the grant date.

SEC source: 0001179110-21-002352 · edgar.xml · nonDerivative · entry 1

Zartler William A · CIK 0001520378 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · kind: On February 25, 2021, Solaris Energy Capital, LLC ("Solaris Energy Capital") executed a block trade under Rule 144 of the Securities Act of 1933, as amended, pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

F1 · price: On February 25, 2021, Solaris Energy Capital, LLC ("Solaris Energy Capital") executed a block trade under Rule 144 of the Securities Act of 1933, as amended, pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

F2 · ownership.nature: Represents shares held by Solaris Energy Capital. The Reporting Person is the sole member of Solaris Energy Capital and has the authority to vote or dispose of the shares held by Solaris Energy Capital in his sole discretion. The Reporting Person disclaims beneficial ownership of the shares held by Solaris Energy Capital in excess of his pecuniary interest therein.

SEC source: 0001179110-21-002364 · edgar.xml · derivative · entry 4

Yorktown Energy Partners X, L.P. · CIK 0001577919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,454,234

Underlying: Class A Common Stock · 500,000 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_price: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F3 · price: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F3 · derivative.exercise_date: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F3 · derivative.expiration_date: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

SEC source: 0001179110-21-002364 · edgar.xml · nonDerivative · entry 3

Yorktown Energy Partners X, L.P. · CIK 0001577919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 8,454,234

F2 · security: Each share of Class B common stock has no economic rights but entitles the holder to one vote on all matters to be voted on by the stockholders generally.

F1 · kind: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by Yorktown Energy Partners X, L.P., a Delaware limited partnership ("Yorktown X"), of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein.

F1 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by Yorktown Energy Partners X, L.P., a Delaware limited partnership ("Yorktown X"), of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein.

SEC source: 0001179110-21-002364 · edgar.xml · nonDerivative · entry 2

Yorktown Energy Partners X, L.P. · CIK 0001577919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F4 · kind: On February 25, 2021, Yorktown X executed a block trade under Rule 144 of the Securities Act of 1933, as amended, pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

F4 · price: On February 25, 2021, Yorktown X executed a block trade under Rule 144 of the Securities Act of 1933, as amended, pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

SEC source: 0001179110-21-002364 · edgar.xml · nonDerivative · entry 1

Yorktown Energy Partners X, L.P. · CIK 0001577919 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

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 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by Yorktown Energy Partners X, L.P., a Delaware limited partnership ("Yorktown X"), of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein.

SEC source: 0001179110-21-002353 · edgar.xml · nonDerivative · entry 1

Solaris Energy Capital, LLC · CIK 0001705554 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: On February 25, 2021, the Reporting Person executed a block trade under Rule 144 of the Securities Act of 1933, as amended, pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

F1 · price: On February 25, 2021, the Reporting Person executed a block trade under Rule 144 of the Securities Act of 1933, as amended, pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

SEC source: 0001179110-21-003277 · edgar.xml · derivative · entry 8

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 8,454,234

Underlying: Class A Common Stock · 500,000 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.

F7 · derivative.exercise_price: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F7 · price: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F7 · derivative.exercise_date: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F7 · derivative.expiration_date: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F7 · ownership.nature: Subject to the terms of the Solaris LLC Agreement, the Solaris LLC Units (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

SEC source: 0001179110-21-003277 · edgar.xml · nonDerivative · entry 4

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 8,454,234

F6 · security: Each share of Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by stockholders generally.

F3 · kind: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by Yorktown X, of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 1 above).

F2 · shares: A Form 4 was filed on February 26, 2021 for Yorktown Energy Partners X, L.P., a Delaware limited partnership ("Yorktown X") disclosing the sale of 500,000 shares of Class A common stock; however, due to an administrative error, the shares, which are held indirectly by the reporting person in his capacity as a member and manager of Yorktown X Associates LLC, the general partner of Yorktown X Company LP, the general partner of Yorktown X, failed to be reported and are included in this filing.

F3 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by Yorktown X, of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 1 above).

F4 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown X. The reporting person is a member and manager of Yorktown X Associates LLC, the general partner of Yorktown X Company LP, the general partner of Yorktown X.

SEC source: 0001179110-21-003277 · edgar.xml · nonDerivative · entry 3

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F8 · kind: On February 25, 2021, Yorktown X executed a block trade under Rule 144 of the Securities Act of 1933, as amended (the "Securities Act"), pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

F2 · shares: A Form 4 was filed on February 26, 2021 for Yorktown Energy Partners X, L.P., a Delaware limited partnership ("Yorktown X") disclosing the sale of 500,000 shares of Class A common stock; however, due to an administrative error, the shares, which are held indirectly by the reporting person in his capacity as a member and manager of Yorktown X Associates LLC, the general partner of Yorktown X Company LP, the general partner of Yorktown X, failed to be reported and are included in this filing.

F8 · price: On February 25, 2021, Yorktown X executed a block trade under Rule 144 of the Securities Act of 1933, as amended (the "Securities Act"), pursuant to which an aggregate of 500,000 shares of the Issuer's Class A common stock were sold in a single transaction exempt from registration under Rule 144 at a price of $11.00 per share.

F5 · ownership.nature: These securities are owned directly by Yorktown X. The reporting person is a member and manager of Yorktown X Associates LLC, the general partner of Yorktown X Company LP, the general partner of Yorktown X.

SEC source: 0001179110-21-003277 · edgar.xml · nonDerivative · entry 2

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 500,000

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 · shares: A Form 4 was filed on February 26, 2021 for Yorktown Energy Partners X, L.P., a Delaware limited partnership ("Yorktown X") disclosing the sale of 500,000 shares of Class A common stock; however, due to an administrative error, the shares, which are held indirectly by the reporting person in his capacity as a member and manager of Yorktown X Associates LLC, the general partner of Yorktown X Company LP, the general partner of Yorktown X, failed to be reported and are included in this filing.

F3 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by Yorktown X, of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 1 above).

F4 · balance_after: The reporting person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for Section 16 or any other purpose.

F5 · ownership.nature: These securities are owned directly by Yorktown X. The reporting person is a member and manager of Yorktown X Associates LLC, the general partner of Yorktown X Company LP, the general partner of Yorktown X.

SEC source: 0001179110-21-001043 · edgar.xml · derivative · entry 6

Zartler William A · CIK 0001520378 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,913,496

Underlying: Class A Common Stock · 500,000 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.

F5 · derivative.exercise_price: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F5 · price: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F5 · derivative.exercise_date: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F5 · derivative.expiration_date: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F4 · ownership.nature: Represents shares held by Solaris Energy Capital, LLC ("Solaris Energy Capital"). The Reporting Person is the sole member of Solaris Energy Capital and has the authority to vote or dispose of the shares held by Solaris Energy Capital in his sole discretion. The Reporting Person disclaims beneficial ownership of the shares held by Solaris Energy Capital in excess of his pecuniary interest therein.

SEC source: 0001179110-21-001043 · edgar.xml · nonDerivative · entry 4

Zartler William A · CIK 0001520378 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 3,913,496

F3 · security: Each share of Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by stockholders generally.

F1 · kind: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the Reporting Person of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 2 below).

F1 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the Reporting Person of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 2 below).

F4 · ownership.nature: Represents shares held by Solaris Energy Capital, LLC ("Solaris Energy Capital"). The Reporting Person is the sole member of Solaris Energy Capital and has the authority to vote or dispose of the shares held by Solaris Energy Capital in his sole discretion. The Reporting Person disclaims beneficial ownership of the shares held by Solaris Energy Capital in excess of his pecuniary interest therein.

SEC source: 0001179110-21-001043 · edgar.xml · nonDerivative · entry 1

Zartler William A · CIK 0001520378 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 500,000

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 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the Reporting Person of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 2 below).

F4 · ownership.nature: Represents shares held by Solaris Energy Capital, LLC ("Solaris Energy Capital"). The Reporting Person is the sole member of Solaris Energy Capital and has the authority to vote or dispose of the shares held by Solaris Energy Capital in his sole discretion. The Reporting Person disclaims beneficial ownership of the shares held by Solaris Energy Capital in excess of his pecuniary interest therein.

SEC source: 0001179110-21-001042 · edgar.xml · derivative · entry 3

Solaris Energy Capital, LLC · CIK 0001705554 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,913,496

Underlying: Class A Common Stock · 500,000 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_price: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F3 · price: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F3 · derivative.exercise_date: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

F3 · derivative.expiration_date: Subject to the terms of the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017, the units in Solaris LLC (together with a corresponding number of shares of Class B common stock) are exchangeable from time to time for shares of Class A common stock of the Issuer.

SEC source: 0001179110-21-001042 · edgar.xml · nonDerivative · entry 2

Solaris Energy Capital, LLC · CIK 0001705554 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,913,496

F2 · security: Each share of Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by stockholders generally.

F1 · kind: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the Reporting Person of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 2 below).

F1 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the Reporting Person of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 2 below).

SEC source: 0001179110-21-001042 · edgar.xml · nonDerivative · entry 1

Solaris Energy Capital, LLC · CIK 0001705554 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 500,000

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 · price: Pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris Oilfield Infrastructure, LLC ("Solaris LLC"), dated as of May 11, 2017, included as Exhibit 10.1 to the Issuer's Current Report on Form 8-K filed May 17, 2017 (the "Solaris LLC Agreement"), the shares of the Issuer's Class B common stock reported herein were cancelled for no consideration on a one-for-one basis upon the redemption by the Reporting Person of units in Solaris LLC ("Solaris LLC Units") (together with a corresponding number of shares of Class B common stock) for the shares of the Issuer's Class A common stock reported herein (except the shares of Class A common stock described in footnote 2 below).

SEC source: 0001179110-20-009658 · edgar.xml · nonDerivative · entry 1

BURKE JAMES R · CIK 0001227489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,643

F1 · balance_after: Represents shares of Class A common stock subject to previously granted Restricted Stock Awards that remains subject to vesting.

SEC source: 0001179110-20-009301 · edgar.xml · nonDerivative · entry 1

PARKER F GARDNER · CIK 0001020949 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,759

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in full on the first anniversary of the grant date.

SEC source: 0001179110-20-009294 · edgar.xml · nonDerivative · entry 1

Giesinger Edgar R. JR. · CIK 0001658831 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 42,759

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in full on the first anniversary of the grant date.

SEC source: 0001179110-20-009306 · edgar.xml · nonDerivative · entry 1

Bourg Lindsay R. · CIK 0001627954 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,164

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 14,563 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-20-009305 · edgar.xml · nonDerivative · entry 1

Walker Ray N JR · CIK 0001483960 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,589

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in full on the first anniversary of the grant date.

SEC source: 0001179110-20-009311 · edgar.xml · nonDerivative · entry 1

TEAGUE AJ · CIK 0001183251 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,259

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in full on the first anniversary of the grant date.

SEC source: 0001179110-20-009296 · edgar.xml · nonDerivative · entry 1

BURKE JAMES R · CIK 0001227489 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,948

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in full on the first anniversary of the grant date.

SEC source: 0001179110-20-009300 · edgar.xml · nonDerivative · entry 1

Keenan W Howard JR · CIK 0001370287 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,759

F1 · shares: Restricted Stock Award pursuant to the Solaris Oilfield Infrastructure, Inc. Long Term Incentive Plan. The award vests in full on the first anniversary of the grant date.

SEC source: 0001179110-20-009308 · edgar.xml · nonDerivative · entry 1

Ramachandran Kyle S. · CIK 0001705386 · President and CFO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 231,919

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 100,001 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-20-009307 · edgar.xml · nonDerivative · entry 1

Price Kelly L. · CIK 0001705397 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 186,778

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 85,001 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-20-009293 · edgar.xml · nonDerivative · entry 1

Durrett Cynthia M. · CIK 0001705383 · Director · Chief Administrative Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,769

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 50,001 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-20-009289 · edgar.xml · nonDerivative · entry 1

Powell Christopher M · CIK 0001710164 · Chief Legal Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,415

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 15,127 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-20-006297 · edgar.xml · nonDerivative · entry 1

Bourg Lindsay R. · CIK 0001627954 · Chief Accounting Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,587

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 16,298 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.

SEC source: 0001179110-20-006296 · edgar.xml · nonDerivative · entry 1

Price Kelly L. · CIK 0001705397 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 188,589

F1 · shares: Represents shares withheld by the Company to satisfy tax withholding obligations upon the vesting of previously granted Restricted Stock Awards.

F2 · balance_after: Includes 92,435 shares of Class A common stock subject to previously granted Restricted Stock Awards that remain subject to vesting.