Investor Yorktown Energy Partners X, L.P.
13D/G Filings

This page shows a list of all the recent 13D/G filings made by Yorktown Energy Partners X, L.P. . Schedule 13D is commonly referred to as a “beneficial ownership report.” The term "beneficial owner" is defined under SEC rules. It includes any person who directly or indirectly shares voting power or investment power (the power to sell the security).

When a person or group of persons acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities, they are required to file a Schedule 13D within ten days after the purchase. Click the link icon to see the full transaction history.

Date Form Target Prev
Shares
Current
Shares
Change
(Percent)
Ownership
(Percent)
Change
(Percent)
2025-08-11 13D/A 2,502,930
2025-02-14 13G/A SEI / Solaris Energy Infrastructure, Inc. 8,054,234 7,079,234
2023-12-08 13D/A METC / Ramaco Resources, Inc. 3,692,881 3,230,031
2023-02-14 13G/A SEI / Solaris Energy Infrastructure, Inc. 8,954,234 8,054,234
2021-02-16 13G/A MNRL / Brigham Minerals Inc - Class A 2,683,371 1,923,275
2020-02-14 13G/A SOI / Solaris Oilfield Infrastructure, Inc. 10,954,234 8,954,234
2020-02-14 13G/A MNRL / Brigham Minerals Inc - Class A 3,485,695 2,683,371
2019-05-03 13G MNRL / Brigham Minerals Inc - Class A 3,485,695
2018-02-14 13G SOI / Solaris Oilfield Infrastructure, Inc. 10,954,234
2017-12-28 13G KRP / Kimbell Royalty Partners, LP - Limited Partnership 925,634
2017-02-21 13D METC / Ramaco Resources, Inc. 3,692,881
2016-11-07 13D XOG / Extraction Oil & Gas Inc - New 17,554,262