Filing Details

	☐	Rule 13d-1(b)
	☐	Rule 13d-1(c)
	☒	Rule 13d-1(d)

(1) Beneficial ownership of the Class A common stock, par value $0.01 per share (“Class A Common Stock”), of Solaris Oilfield Infrastructure, Inc. (the “Issuer”) referred to herein is being reported hereunder solely because the reporting person directly owns 8,054,234 shares of Class B common stock of the Issuer (“Class B Common Stock”) and 8,054,234 membership interests (“Solaris LLC Units”) in Solaris Oilfield Infrastructure, LLC (“Solaris LLC”), which are exchangeable for shares of Class A Common Stock on a one-for-one basis, pursuant to the Second Amended and Restated Limited Liability Company Agreement of Solaris LLC (the “Solaris LLC Agreement”). Neither the filing of this Schedule 13G nor any of its contents shall be deemed to constitute an admission by any reporting person that it is the beneficial owner of any of the securities referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed.

(2) Based on 32,934,930 shares of Class A Common Stock of the Issuer issued and outstanding as of October 27, 2022 as reported in the Issuer’s Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission (the “SEC”) on November 2, 2022 (the “10-Q”) and 8,054,234 shares of Class A Common Stock issuable upon the exchange of shares of Class B Common Stock together with Solaris LLC Units as described above.

(1) Beneficial ownership of the Class A Common Stock of the Issuer referred to herein is being reported hereunder solely because the reporting person may be deemed to beneficially own 8,054,234 shares of Class B Common Stock and 8,054,234 Solaris LLC Units, which are exchangeable for shares of Class A Common Stock on a one-for-one basis, pursuant to the Solaris LLC Agreement. Neither the filing of this Schedule 13G nor any of its contents shall be deemed to constitute an admission by any reporting person that it is the beneficial owner of any of the securities referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed.

(2) These securities are directly held by Yorktown Energy Partners X, L.P., a Delaware limited partnership (“Yorktown X”). Yorktown X Company LP, a Delaware limited partnership (“Yorktown X Company”), is the sole general partner of Yorktown X. As a result, Yorktown X Company may be deemed to have the power to vote or direct the vote or to dispose or direct the disposition of the shares owned by Yorktown X. Yorktown X Company disclaims beneficial ownership of the securities owned by Yorktown X in excess of its pecuniary interests therein.

(3) Based on 32,934,930 shares of Class A Common Stock of the Issuer issued and outstanding as of October 27, 2022 as reported in the 10-Q and 8,054,234 shares of Class A Common Stock issuable upon the exchange of shares of Class B Common Stock together with Solaris LLC Units as described above.

(1) Beneficial ownership of the Class A Common Stock of the Issuer referred to herein is being reported hereunder solely because the reporting person may be deemed to beneficially own 8,054,234 shares of Class B Common Stock and 8,054,234 Solaris LLC Units, which are exchangeable for shares of Class A Common Stock on a one-for-one basis, pursuant to the Solaris LLC Agreement. Neither the filing of this Schedule 13G nor any of its contents shall be deemed to constitute an admission by any reporting person that it is the beneficial owner of any of the securities referred to herein for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, or for any other purpose, and such beneficial ownership is expressly disclaimed.

(2) These securities are directly held by Yorktown X. Yorktown X Company is the sole general partner of Yorktown X and Yorktown X Associates LLC, a Delaware limited liability company (“Yorktown X Associates”), is the sole general partner of Yorktown X Company. As a result, Yorktown X Associates may be deemed to have the power to vote or direct the vote or to dispose or direct the disposition of the shares owned by Yorktown X. Yorktown X Company and Yorktown X Associates disclaim beneficial ownership of the securities owned by Yorktown X in excess of their respective pecuniary interests therein.

(3) Based on 32,934,930 shares of Class A Common Stock of the Issuer issued and outstanding as of October 27, 2022 as reported in the 10-Q and 8,054,234 shares of Class A Common Stock issuable upon the exchange of shares of Class B Common Stock together with Solaris LLC Units as described above.

(a) ☐ Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b) ☐ Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c) ☐ Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d) ☐ Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8).

(e) ☐ An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f) ☐ An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g) ☐ A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h) ☐ A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i) ☐ A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j) ☐ A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J).

(k) ☐ Group, in accordance with § 240.13d-1(b)(1)(ii)(K).

If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:                                             

The information regarding ownership set forth in Items 5-9 and 11 of each cover page is hereby incorporated herein by reference.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following ☐.

Not applicable

Not applicable

Not applicable

Not applicable

Not applicable.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

EXHIBIT INDEX

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