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Yorktown Energy Partners X, L.P.

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13F filer, CIK 1577919, New York, NY

Yorktown Energy Partners X, L.P. reported $107,420,288 across 3 holdings for the quarter ended 2025-09-30, in a 13F-HR filed 2025-11-14.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001140361-25-042330

Period
2025-09-30
Reported value
$107M
Holdings
3
Top 10 weight
100%
New
0
Sold out
0

Largest buys vs the previous quarter

SecurityShares changeApprox. value
METCBadded+9,667$163K

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
METCreduced-426,627-$14.2M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2025

Share positions as resolved from 13F-HR 0001140361-25-042330, largest first. % of portfolio is the value over $107,420,288, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
METCRAMACO RES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 3,196,199 shares; 2024Q4: 3,196,199 shares; 2025Q1: 2,929,557 shares; 2025Q2: 2,929,557 shares; 2025Q3: 2,502,930 shares 2,502,930$83.1M77.33%-426,627Timeline
METCBRAMACO RES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 713,193 shares; 2024Q4: 713,193 shares; 2025Q1: 668,723 shares; 2025Q2: 806,465 shares; 2025Q3: 816,132 shares 816,132$13.8M12.8%+9,667Timeline
REPXRILEY EXPLORATION PERMIAN INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2023Q4: restricted; 2024Q1: restricted; 2024Q2: restricted; 2024Q3: 390,860 shares; 2024Q4: 390,860 shares; 2025Q1: 390,860 shares; 2025Q2: 390,860 shares; 2025Q3: 390,860 shares 390,860$10.6M9.86%0Timeline

How Q3 2025 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001140361-25-042330 base2025-11-14acceptance time not in the bulk data set