Form 13F-HR - Quarterly report filed by institutional managers, Holdings:
SEC Accession No. 0001140361-26-021709
Filing Date
2026-05-15
Accepted
2026-05-15 17:10:54
Documents
2
Period of Report
2026-03-31
Effectiveness Date
2026-05-15

Document Format Files

Seq Description Document Type Size
1 primary_doc.html 13F-HR  
1 primary_doc.xml 13F-HR 2878
2 informationtable.html INFORMATION TABLE  
2 informationtable.xml INFORMATION TABLE 2565
  Complete submission text file 0001140361-26-021709.txt   6671
Mailing Address 410 PARK AVENUE 20TH FLOOR NEW YORK NY 10022
Business Address 410 PARK AVENUE 20TH FLOOR NEW YORK NY 10022 212-515-2115
Yorktown Energy Partners X, L.P. (Filer) CIK: 0001577919 (see all company filings)

EIN.: 462445852 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 13F-HR | Act: 34 | File No.: 028-17861 | Film No.: 26989697