Yorktown Energy Partners XI, L.P.

Est. AUM

$141.5M

13F long equity, this entity only

Positions

Period

Mar 2026 (Q1)

SEC EDGAR

Mar 2026 (Q1)

#	Issuer	Class	Value	Shares	% Portfolio	Discretion
1	Riley Exploration Permain	COM	$65.0M	1784113	45.95%	DFND
2	Ramaco Resources Inc	COM CL A	$46.1M	2979968	32.55%	DFND
3	Epsilon Energy Ltd	COM	$17.7M	2869560	12.49%	DFND
4	Ramaco Resources Inc	COM CL B	$12.8M	1250613	9.01%	DFND

Values in USD (reported in $thousands on 13F). Source: SEC EDGAR.