16 recent activity records on file for Sem Operating Company LLC across TX — permits filed in the last 24 months, wells spudded in the last 90 days, wells turning to first production in the last 6 months, and drilled-uncompleted (DUC) inventory.
Refreshed daily from TX RRC + OK OCC well-header records. Data current as of recent filings.
Where Sem Operating Company LLC is most active across all 4 activity datasets:
Irion, TX — 9 activity records
Crockett, TX — 7 activity records
Which formations / plays Sem Operating Company LLC is targeting:
Permian Basin — 16 activity records
Wells where Sem Operating Company LLC has started drilling in the last 90 days but production hasn't begun yet:
| Spud Date | Days Ago | Well | API | County | State | Formation | Lateral (ft) |
|---|---|---|---|---|---|---|---|
| 2026-07-20 | 57 | University 40 1507wc | 4210542575 |
Crockett | TX | Permian Basin | 8,231 |
| 2026-07-19 | 58 | University 40 1509wc | 4210542576 |
Crockett | TX | Permian Basin | 8,207 |
| 2026-07-18 | 59 | University 40 1511wc | 4210542577 |
Crockett | TX | Permian Basin | 8,323 |
Sem Operating Company LLC wells whose first production date falls in the last 6 months — wells that just started generating royalty checks:
| First Prod | Days Producing | Well | API | County | State | Formation | Lateral (ft) |
|---|---|---|---|---|---|---|---|
| 2026-04-01 | 167 | University 38-40 1712wb | 4223536186 |
Irion | TX | Permian Basin | 8,256 |
Wells Sem Operating Company LLC has spudded with no reported first production — an approximate DUC list, since the records carry no completion status:
| Spud Date | Days Since Spud | Well | API | County | State | Formation | Lateral (ft) |
|---|---|---|---|---|---|---|---|
| 2026-07-20 | 57 | University 40 1507wc | 4210542575 |
Crockett | TX | Permian Basin | 8,231 |
| 2026-07-19 | 58 | University 40 1509wc | 4210542576 |
Crockett | TX | Permian Basin | 8,207 |
| 2026-07-18 | 59 | University 40 1511wc | 4210542577 |
Crockett | TX | Permian Basin | 8,323 |
| 2026-05-19 | 119 | University 40 E 1803wc | 4223536766 |
Irion | TX | Permian Basin | 16,019 |
| 2026-05-18 | 120 | University 40 E 1803wb | 4223536765 |
Irion | TX | Permian Basin | — |
| 2026-04-10 | 158 | University 40 C 1803wc | 4210542568 |
Crockett | TX | Permian Basin | 8,460 |
| 2026-04-05 | 163 | University 40d 0703wc | 4223536748 |
Irion | TX | Permian Basin | 10,646 |
| 2026-04-03 | 165 | University 40d 0701wc | 4223536747 |
Irion | TX | Permian Basin | 10,319 |
| 2026-03-17 | 182 | University 40 1310wc | 4223536746 |
Irion | TX | Permian Basin | 7,895 |
| 2026-03-16 | 183 | University 40 1306wc | 4223536745 |
Irion | TX | Permian Basin | 9,035 |
| 2026-03-15 | 184 | University 40 1304wc | 4223536744 |
Irion | TX | Permian Basin | 7,988 |
| 2026-03-14 | 185 | University 40 1302wc | 4223536743 |
Irion | TX | Permian Basin | 8,074 |
A new permit, fresh spud, or recently producing well on or near your tract can materially change what your interest is worth. Get a free written offer based on your specific minerals.
Get Your Free Written OfferOperator: Sem Operating Company LLC
States active: TX
Total activity: 16
Permits 24mo: 0
Spuds 90d: 3
New producers: 1
DUC inventory: 12
Last refresh: —
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