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Yorktown Energy Partners XI, L.P.

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13F filer, CIK 1667954, New York, NY

Yorktown Energy Partners XI, L.P. reported $141,533,967 across 4 holdings for the quarter ended 2026-03-31, in a 13F-HR filed 2026-05-15.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001140361-26-021707

Period
2026-03-31
Reported value
$142M
Holdings
4
Top 10 weight
100%
New
0
Sold out
0

Part of the filer group Yorktown Energy Partners XI, L.P.

How groups are built

Largest buys vs the previous quarter

SecurityShares changeApprox. value
EPSNadded+90,117$555K

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-806,829-$12.5M
METCBreduced-1,914-$19.5K

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, Q1 2026

Share positions as resolved from 13F-HR 0001140361-26-021707, largest first. % of portfolio is the value over $141,533,967, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
REPXRILEY EXPLORATION PERMIAN INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,784,113 shares; 2024Q4: 1,784,113 shares; 2025Q1: 1,784,113 shares; 2025Q2: 1,784,113 shares; 2025Q3: 1,784,113 shares; 2025Q4: 1,784,113 shares; 2026Q1: 1,784,113 shares 1,784,113$65M45.95%0Timeline
METCRAMACO RES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 4,835,676 shares; 2024Q4: 4,835,676 shares; 2025Q1: 4,432,261 shares; 2025Q2: 4,432,260 shares; 2025Q3: 3,786,797 shares; 2025Q4: 3,786,797 shares; 2026Q1: 2,979,968 shares 2,979,968$46.1M32.55%-806,829Timeline
EPSNEPSILON ENERGY LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: not reported; 2024Q4: not reported; 2025Q1: not reported; 2025Q2: not reported; 2025Q3: not reported; 2025Q4: 2,779,443 shares; 2026Q1: 2,869,560 shares 2,869,560$17.7M12.49%+90,117Timeline
METCBRAMACO RES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2024Q2: restricted; 2024Q3: 1,079,022 shares; 2024Q4: 1,079,022 shares; 2025Q1: 1,011,736 shares; 2025Q2: 1,220,133 shares; 2025Q3: 1,234,759 shares; 2025Q4: 1,252,527 shares; 2026Q1: 1,250,613 shares 1,250,613$12.8M9.01%-1,914Timeline

How Q1 2026 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 0001140361-26-021707 base2026-05-15acceptance time not in the bulk data set