Yorktown Energy Partners X’s Riley Exploration Permian REPX Stock Holding History

Yorktown Energy Partners X’s Portfolio REPX Stock Details REPX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	–	Sell	-390,860	Closed	-$14.2M	–	4
2026 Q1	$14.2M	Hold	390,860	–	–	20.5%	3
2025 Q4	$10.3M	Hold	390,860	–	–	13.33%	3
2025 Q3	$10.6M	Hold	390,860	–	–	9.86%	3
2025 Q2	$10.3M	Hold	390,860	–	–	18.52%	2
2025 Q1	$11.4M	Hold	390,860	–	–	28.32%	2
2024 Q4	$12.5M	Hold	390,860	–	–	23.85%	2
2024 Q3	$10.4M	Hold	390,860	–	–	18.68%	2
2024 Q2	$11.1M	Hold	390,860	–	–	18.88%	2
2024 Q1	$12.9M	Hold	390,860	–	–	15.09%	2
2023 Q4	$10.6M	Hold	390,860	–	–	13.28%	2
2023 Q3	$12.4M	Hold	390,860	–	–	9.29%	3
2023 Q2	$14M	Hold	390,860	–	–	11.56%	3
2023 Q1	$14.9M	Hold	390,860	–	–	14.3%	3
2022 Q4	$11.5M	Hold	390,860	–	–	10.39%	3
2022 Q3	$7.42M	Hold	390,860	–	–	7.09%	3
2022 Q2	$9.45M	Hold	390,860	–	–	7.15%	3
2022 Q1	$9.8M	Hold	390,860	–	–	3.11%	3
2021 Q4	$7.55M	Hold	390,860	–	–	2.83%	4
2021 Q3	$9.18M	Buy	+390,860	New	+$8.31M	3.01%	4

Other funds holding REPX

YEPX

Yorktown Energy Partners XI New York $108M AUM 57.73% 1-Year Est. Return

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

First Eagle Investment Management New York $60.8B AUM 26.63% 1-Year Est. Return

Yorktown Energy Partners X's REPX Position: Q2 2026 in Review

Yorktown Energy Partners X sold out of Riley Exploration Permian (REPX) in Q2 2026, closing a stake of 390,860 shares — an estimated $14.2M sold.

Yorktown Energy Partners X first reported a position in REPX in Q3 2021 and held it in 19 quarters. The position peaked at $14.9M in Q1 2023. 198 funds tracked by Wall St. Rank hold REPX as of Q2 2026.

Yorktown Energy Partners X reported no remaining Riley Exploration Permian position as of Q2 2026 after selling out during the quarter.
Yorktown Energy Partners X sold 390,860 Riley Exploration Permian shares in Q2 2026, an estimated $14.2M.
Yorktown Energy Partners X first reported a position in Riley Exploration Permian in Q3 2021 and held it in 19 quarters.
Yorktown Energy Partners X's Riley Exploration Permian position peaked at $14.9M in Q1 2023.
198 funds tracked by Wall St. Rank held Riley Exploration Permian as of Q2 2026.

Based on Yorktown Energy Partners X's 13F filing for Q2 2026, filed 14 Aug 2026.