Yorktown Energy Partners X, L.P.

In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), Yorktown Energy Partners X, L.P. reported 4 stock positions worth $69.5 million. Its top holding was Ramaco Resources Class A (METC) at 43.8% of the portfolio, followed by Epsilon Energy (EPSN, 23.5%) and Riley Exploration Permian (REPX, 20.5%). Compared with Q4 2025, it reduced 2. The biggest sale was Ramaco Resources Class A (METC, shares −21%).

Most Recent 13F
Q2 2026
Location
New York, NY
CIK
0001577919
Portfolio Value
$69.5M (Q1 2026)
SEC Filing
0001140361-26-021709 ↗ filed May 15, 2026

Holdings Value

0$50.0M$100.0M$150.0M Q1 2024: $85.5M Q1 2024 Q2 2024: $58.6M Q2 2024 Q3 2024: $55.4M Q3 2024 Q4 2024: $52.3M Q4 2024 Q1 2025: $40.3M Q1 2025 Q2 2025: $55.3M Q2 2025 Q3 2025: $107.4M Q3 2025 Q4 2025: $77.4M Q4 2025 Q1 2026: $69.5M $69.5M Q1 2026 Q2 2026: $47.6M Q2 2026

Holdings 4 stocks · $69.5M
METC Ramaco Resources Inc. Class A 43.82% 1,969,646 $30.5M Reduce -21.3%
EPSN Epsilon Energy Ltd. 23.55% 2,656,705 $16.4M No change
REPX Riley Exploration Permian Inc. 20.50% 390,860 $14.2M No change
METCB Ramaco Resources Inc. Class B 12.13% 826,611 $8.4M Reduce -0.1%

Portfolio Sells Q4 2025 → Q1 2026
METC Ramaco Resources Inc. Class A Reduce -21.3% 43.82% −14.37
METCB Ramaco Resources Inc. Class B Reduce -0.1% 12.13% −0.43

Portfolio Buys Q4 2025 → Q1 2026
None this quarter.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 3$47.6MMETC, EPSN, METCB
Q1 2026 4$69.5MMETC, EPSN, REPX, METCB
Q4 2025 4$77.4MMETC, EPSN, REPX, METCB
Q3 2025 3$107.4MMETC, METCB, REPX
Q2 2025 3$55.3MMETC, REPX, METCB
Q1 2025 3$40.3MMETC, REPX, METCB
Q4 2024 3$52.3MMETC, REPX, METCB
Q3 2024 3$55.4MMETC, REPX, METCB
Q2 2024 3$58.6MMETC, REPX, METCB
Q1 2024 4$85.5MMETC, REPX, STR, METCB