DOSSIER · 13F-HR · Q1 2026

Yorktown Energy Partners XI, L.P.

$142M in tracked AUM across 4 positions as of Q1 2026.

YE
CIK 0001667954 · last filed Mar 31, 2026
Total AUM
$142M
as of Q1 2026
Holdings
4
positions
Whale Score
69
69
tracked
Activity
no data
changes this Q
AI Analysis · Q1 2026

Based on the SEC 13F filing data provided for Yorktown Energy Partners XI, L.P. for the period ending September 30, 2025, here is a comprehensive financial analysis.

1. Portfolio Overview

Yorktown Energy Partners XI, L.P. manages a highly concentrated, high-conviction portfolio with a total market value of approximately $194.86 million. The fund experienced significant growth during the quarter, with total assets increasing by 69.4% from $115.02 million in the previous quarter. This surge i...

The portfolio exhibits extreme concentration risk, holding only three distinct positions. This lack of broad diversification suggests the firm employs a high-risk, high-reward strategy, relying heavily on specific sector expertise rather than broad market exposure. The firm’s activity level was relatively low, with no new positions opened or existing positions completely sold, indicating a "hold and adjust" approach rather than a tactical rotation.

2. Key Holdings

The portfolio is dominated by three specific energy-related assets, which together constitute 100% of the reported holdings:

Quarter at a glance — Q1 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q1 2026.

#HoldingValueSharesWeight
01
REPX
Riley Exploration Permain
$65M1.8M45.9%
02
METC
Ramaco Resources Inc
$46M3.0M32.6%
03
EPSN
Epsilon Energy Ltd
$18M2.9M12.5%
04
METCB
Ramaco Resources Inc
$13M1.3M9.0%

Filing history

2026Q1Mar 31
$142M 0.9%
4 positionsView →
2025Q4Dec 31
$143M 26.7%
4 positionsView →
2025Q3Sep 30
$195M 69.4%
3 positionsView →
2025Q2Jun 30
$115M 20.2%
3 positionsLocked
2025Q1Mar 31
$96M 18.3%
3 positionsLocked
2024Q4Dec 31
$117M 1.5%
3 positionsLocked
2024Q3Sep 30
$115M 5.7%
3 positionsLocked
2024Q2Jun 30
$122M 22.4%
3 positionsLocked
2024Q1Mar 31
$158M 6.6%
4 positionsLocked
2023Q4Dec 31
$148M 17.1%
4 positionsLocked
2023Q3Sep 30
$179M 6.9%
5 positionsLocked
2023Q2Jun 30
$167M 8.4%
5 positionsLocked
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