CIK: 0001577919
Total reported value
$69.5M
Reporting period: 2026-03-31 · Number of holdings: 4
Yorktown Energy Partners X, L.P. disclosed 4 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $69.5M and a quarterly turnover rate of 32.5%.
Browse other institutions with under $100M AUMBrowse other institutions starting with "Y"
Sector classification currently covers about 0% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim METC
-21.3% -$14.6M
Add EPSN
0.0% $4.0M
Add REPX
0.0% $3.9M
Trim METCB
-0.2% -$1.3M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | METC | Ramaco Resources Inc-a | Stock-Other | 43.82% | -14.37% | -21.31% | |
| 2 | EPSN | Epsilon Energy LTD | Stock-Other | 23.55% | +7.63% | — | |
| 3 | REPX | Riley Exploration Permian In | Stock-Other | 20.50% | +7.17% | — | |
| 4 | METCB | Ramaco Resources Inc-b | Stock-Other | 12.13% | -0.43% | -0.15% |
Performance for Q3 2026
-6.2%
Performance Last 4 Quarters
-6.2%
Based on 2 months of available history
Based on 56% of reported portfolio value with available pricing
Not enough sector-mapped data yet
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 4 | $69.5M | 32 | |
| 2025-12-31 | 4 | $77.4M | 59 | |
| 2025-09-30 | 3 | $107.4M | 85 | |
| 2025-06-30 | 3 | $55.3M | 0 | |
| 2025-03-31 | 3 | $40.3M | 100 | |
| 2024-12-31 | 3 | $52.3M | 0 | |
| 2024-09-30 | 3 | $55.4M | 0 | |
| 2024-06-30 | 3 | $58.6M | 0 | |
| 2024-03-31 | 4 | $85.5M | 0 | |
| 2023-12-31 | 4 | $80.2M | 0 | |
| 2023-09-30 | 5 | $133.7M | 0 | |
| 2023-06-30 | 5 | $120.8M | 0 | |
| 2023-03-31 | 4 | $104.0M | 0 | |
| 2022-12-31 | 4 | $110.7M | 0 | |
| 2022-09-30 | 3 | $104.6M | 0 | |
| 2022-06-30 | 3 | $132.3M | 0 | |
| 2022-03-31 | 3 | $315.3M | 0 | |
| 2021-12-31 | 4 | $267.0M | 0 | |
| 2021-09-30 | 4 | $304.4M | 0 | |
| 2021-06-30 | 3 | $33.1M | 87 | |
| 2021-03-31 | 3 | $25.6M | 36 | |
| 2020-12-31 | 2 | $17.8M | 26 | |
| 2020-09-30 | 3 | $19.5M | 42 | |
| 2020-06-30 | 3 | $17.0M | 45 | |
| 2020-03-31 | 3 | $21.0M | 100 | |
| 2019-12-31 | 3 | $64.3M | 24 | |
| 2019-09-30 | 3 | $77.4M | 34 | |
| 2019-06-30 | 3 | $108.8M | 16 | |
| 2019-03-31 | 2 | $95.7M | 4 | |
| 2018-12-31 | 2 | $93.6M | 100 | |
| 2018-09-30 | 3 | $432.7M | 30 | |
| 2018-06-30 | 4 | $460.5M | 28 | |
| 2018-03-31 | 4 | $432.7M | 31 | |
| 2017-12-31 | 5 | $572.1M | 9 | |
| 2017-09-30 | 3 | $556.5M | 25 | |
| 2017-06-30 | 3 | $431.7M | 70 | |
| 2017-03-31 | 2 | $361.3M | 17 | |
| 2016-12-31 | 1 | $351.8M | 0 |
Yorktown Energy Partners X, L.P.'s most significant position changes for 2026-03-31: Trim: Ramaco Resources Inc-a (METC) — shares -21.31%; Trim: Ramaco Resources Inc-b (METCB) — shares -0.15%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | EPSN | Epsilon Energy LTD | +7.6% | — | Unchanged |
| 2 | REPX | Riley Exploration Permian In | +7.2% | — | Unchanged |
| 3 | METCB | Ramaco Resources Inc-b | -0.4% | -0.15% | Trim |
| 4 | METC | Ramaco Resources Inc-a | -14.4% | -21.31% | Trim |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-15 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-17 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-11-14 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-08-14 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-05-15 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-02-14 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-13 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-13 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-05-15 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-02-14 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-11-14 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-08-14 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-05-12 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-02-14 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-11-14 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-08-11 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-05-16 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-02-14 | 13F-HR | View on EDGAR |
| 2021-09-30 | 2021-11-15 | 13F-HR | View on EDGAR |
| 2021-06-30 | 2021-08-16 | 13F-HR | View on EDGAR |
| 2021-03-31 | 2021-05-17 | 13F-HR | View on EDGAR |
| 2020-12-31 | 2021-02-16 | 13F-HR | View on EDGAR |
| 2020-09-30 | 2020-11-16 | 13F-HR | View on EDGAR |
| 2020-06-30 | 2020-08-14 | 13F-HR | View on EDGAR |
| 2020-03-31 | 2020-05-15 | 13F-HR | View on EDGAR |
| 2019-12-31 | 2020-02-14 | 13F-HR | View on EDGAR |
| 2019-09-30 | 2019-11-14 | 13F-HR | View on EDGAR |
| 2019-06-30 | 2019-08-14 | 13F-HR | View on EDGAR |
| 2019-03-31 | 2019-05-15 | 13F-HR | View on EDGAR |
| 2018-12-31 | 2019-02-15 | Amendment | View on EDGAR |
| 2018-12-31 | 2019-02-14 | 13F-HR | View on EDGAR |
| 2018-09-30 | 2018-11-14 | 13F-HR | View on EDGAR |
| 2018-06-30 | 2018-08-14 | 13F-HR | View on EDGAR |
| 2018-03-31 | 2018-05-15 | 13F-HR | View on EDGAR |
| 2017-12-31 | 2018-02-14 | 13F-HR | View on EDGAR |
| 2017-09-30 | 2017-11-14 | 13F-HR | View on EDGAR |
| 2017-06-30 | 2017-08-14 | 13F-HR | View on EDGAR |
| 2017-03-31 | 2017-05-15 | 13F-HR | View on EDGAR |
| 2016-12-31 | 2017-02-14 | 13F-HR | View on EDGAR |
Institutions with a similar AUM
CIK 0001259392
Total reported value
$69.4M
219 stks
2014-12-31
Stale — no recent filing
AUM within 0.1% of this institution
CIK 0001374022
Total reported value
$69.4M
54 stks
2020-09-30
Stale — no recent filing
AUM within 0.1% of this institution
CIK 0001427683
Total reported value
$69.6M
17 stks
2014-09-30
Stale — no recent filing
AUM within 0.2% of this institution
Institutions with overlapping top holdings
CIK 0001667954
Total reported value
$141.5M
4 stks
2026-03-31
4 of the top 5 holdings overlap, including Riley Exploration Permian In
CIK 0001503466
Total reported value
$57.5M
3 stks
2026-03-31
3 of the top 5 holdings overlap, including Ramaco Resources Inc-a
CIK 0001210407
Total reported value
$5.4M
1 stks
2022-03-31
Stale — no recent filing
1 of the top 5 holdings overlap, including Riley Exploration Permian In