Stocks/Funds/CIK 1667954

Yorktown Energy Partners XI, L.P.

long-term holderconcentrated
Quarterly 13F filings · Latest period 2026-03-31 · CIK 1667954
Assets
$142M
+47.9% YoY
Holdings
4
Lifetime alpha vs market
-9.67% annual
Average hold time
2.9 yr
median 3.0 yr

Quarterly history

Cum return +1% vs S&P +52% · α -51% lifetimeAUM $142M · peak $300MFlow $-57M (-40%)2016-122018-062019-122021-062022-122024-062025-122026-03
AUM ($B)fundS&P 500(gap = α)/ Flow in/out

Behavior signals (lifetime)

Dip response
+0.00%
trims when stocks drop
when a holding falls −10%+
Middle response
+0.00%
baseline attrition
Rally response
+0.14%
adds into rallies
when a holding rises +10%+

Top positions · 4

Ticker$ value% portYoYHold time
REPXRiley Exploration Permia$65M45.9%+32.4%5.3 yr
$46M32.6%3.0 yr
EPSNEpsilon Energy Ltd.$18M12.5%-9.0%0.5 yr
METCBRamaco Resources, Inc.$13M9.0%3.0 yr

Portfolio composition (YoY)

Industry mix
Oil & Gas Exploration & Production58.4%+4.1pp$83M
Unknown32.6%-5.6pp$46M
Coal9.0%+1.5pp$13M
Country
US67.4%+5.6pp
Unknown32.6%-5.6pp
Top 5: 100.0% · Top 10: 100.0% · Top 25: 100.0%

Winners

TickerPrev $PnLYoY %
REPX$52M+0.02B32.4%

Losers

TickerPrev $PnLYoY %

Top buys this quarter · 1

EPSN Epsilon Energy Ltd.+$1M

Top sells this quarter · 2

METCB Ramaco Resources, Inc.$0M
$0M

Quarterly history (TTM returns)

PeriodAUM# PosReturn (1yr)SPY (1yr)Alpha (1yr)Flow
2026-03-31$142M4+30.24%+17.59%+12.64%-0.06B
2025-12-31$143M4-13.36%+17.72%-31.08%-0.05B
2025-09-30$195M3+7.91%+17.52%-9.61%+0.07B
2025-06-30$115M3-2.45%+14.94%-17.39%+0.03B
2025-03-31$96M3-7.09%+8.30%-15.39%-0.01B
2024-12-31$117M3+23.85%+24.89%-1.04%-0.02B
2024-09-30$115M3-12.14%+36.04%-48.17%-0.00B
2024-06-30$122M3-16.69%+24.49%-41.19%-0.01B
2024-03-31$158M4-7.67%+29.62%-37.30%-0.02B
2023-12-31$148M4-12.87%+26.18%-39.05%-0.01B
2023-09-30$179M5+20.40%+21.57%-1.17%+0.03B
2023-06-30$167M5-1.05%+19.42%-20.48%+0.02B
2023-03-31$154M4-9.30%-7.82%-1.48%-0.01B
2022-12-31$145M4+19.77%+7.56%+12.21%-0.01B
2022-09-30$128M3-26.17%-4.93%-21.24%+0.00B
2022-06-30$167M3-11.71%-16.11%+4.40%-0.10B