Yorktown Energy Partners X, L.P. reported 3 positions worth $47.58M for the quarter ended Jun 30, 2026, down 31.5% on the prior quarter. It opened 0 new positions, added to 1, trimmed 0 and exited 1. Its largest holding is Ramaco Resources, Inc. at 54.8% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| METCB Ramaco Resources, Inc. | +9,900 | +1.2% | $84.65K | 15.03% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| REPX Riley Exploration Permian, Inc. | -390.9K | -100.0% | $14.25M | Exited |
No new positions this quarter.
| Holding | Shares Sold | Trade Value | Prior Weight |
|---|---|---|---|
| REPX Riley Exploration Permian, Inc. | -390.9K | $14.25M | 20.5% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | METC Ramaco Resources, Inc. | Energy | 1.97M | $26.06M | 54.76% | 0 | 0.0% | Unchanged | 3.8% |
| 2 | EPSN Epsilon Energy Ltd. | Energy | 2.66M | $14.37M | 30.21% | 0 | 0.0% | Unchanged | 8.78% |
| 3 | METCB Ramaco Resources, Inc. | Energy | 836.5K | $7.15M | 15.03% | +9,900 | +1.2% | Added | 1.3% |
Tip. Select a row to see that position’s full history at Yorktown Energy Partners X.
As of its Q2 2026 13F filing, Yorktown Energy Partners X, L.P.’s five largest positions were Ramaco Resources, Inc. (METC) at 54.8%, Epsilon Energy Ltd. (EPSN) at 30.2%, Ramaco Resources, Inc. (METCB) at 15.0% of the reported portfolio.
Yorktown Energy Partners X, L.P. reported a 13F portfolio worth $47.58M across 3 positions for Q2 2026. That is down 31.5% from the previous quarter.
Its largest purchases by value were Ramaco Resources, Inc. ($84.65K). It opened 0 new positions.
Its largest sales by value were Riley Exploration Permian, Inc. ($14.25M). It exited 1 positions entirely.
From the Form 13F-HR reports Yorktown Energy Partners X, L.P. files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.