Yorktown Energy Partners X, L.P. — 13F Holdings & Portfolio
CIK 1577919 · latest 13F-HR filed 2026-08-14
Yorktown Energy Partners X, L.P. manages $47.6M in 13F-reported U.S. long-equity assets across 3 reported positions as of its 2026-06-30 13F-HR filing. Its largest disclosed positions are METC (54.76%), EPSN (30.21%), METCB (15.03%). Quarter over quarter (versus its 2026-03-31 filing) the fund opened 0 new positions, exited 1, added to 0, and trimmed 3.
AUM is the long-equity portion reported on Form 13F-HR. Excludes short positions, cash, foreign holdings, and non-13F assets. For informational purposes only — not investment advice.
20TH FLOOR
NEW YORK, NY 10022
$47.6M
Long-equity book
3
Distinct positions
2026-06-30
Filed 2026-08-14
+0 / −1 / ↑0 / ↓3
vs 2026-03-31
| Name | Title / Status | Ownership | Type |
|---|
Top Trims
- Ramaco Resources Inc-$4.4M -14.4%
- Epsilon Energy Ltd-$2.0M -12.2%
- Ramaco Resources Inc-$1.3M -15.2%
Rows tagged Call or Put are options positions, not stock. Per SEC Form 13F-HR, Value shows the notional value of the underlying (shares covered × underlying price), not the option premium. Shares is the number of underlying shares covered (divide by 100 for contract count).
| Period | Filed | AUM | Holdings | Accession |
|---|---|---|---|---|
| 2026-06-30 | 2026-08-14 | $47.6M | 3 | 0001140361-26-033067 |
| 2026-03-31 | 2026-05-15 | $69.5M | 4 | 0001140361-26-021709 |
| 2025-12-31 | 2026-02-17 | $77.4M | 4 | 0001140361-26-005790 |
| 2025-09-30 | 2025-11-14 | $107.4M | 3 | 0001140361-25-042330 |