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Texas well record

UL 8-4 xxxxx #4WB

Black Swan OpCo. LLC - Spraberry (Trend Area)

Recently completedReagan County
API104238342158
API838342158
Latest eventCementing Report Filed
Event dateJun 17, 2026
Well context

Known public record details

API number4238342158
CountyReagan County
OperatorBlack Swan OpCo. LLC
FieldSpraberry (Trend Area)
LeaseUL ACFD 4475 (23377)
Well number0404UB
StatusRecently completed
Location

Location summary

Public records currently place this well in Reagan County, Spraberry (Trend Area) field, survey UL, abstract U139, block and, section 4. Surface locations can be incomplete or misleading for horizontal wells, so verify official plats, directional surveys, completion records, and source documents before relying on a map point.

SurveyUL
AbstractU139
Blockand
Section4
Lifecycle

Well lifecycle timeline

W-1 permit
Linked signal foundJun 18, 2026

Permit records can indicate requested drilling, recompletion, deepening, or related work, but do not guarantee drilling or production.

Directional survey, plat, or L-1
Linked signal foundJun 18, 2026

Directional surveys, plats, and L-1 records can be important for understanding horizontal wells beyond the surface point.

W-2/G-1 completion
Linked signal foundJun 18, 2026

Completion filings can show that a well moved from permitted or drilled status into a completed well record.

Form PR production
No linked signal yetDate unknown

Production signals help identify wells with linked monthly production or derived producing status.

P-4 operator/lease changes
No linked signal yetDate unknown

P-4 activity can indicate operator, lease, gatherer, purchaser, or responsibility changes tied to the record.

W-3A/W-3 plugging
No linked signal yetDate unknown

Plugging notices and plugging records help distinguish planned plugging from wells already reported as plugged.

Activity

Recent activity timeline

Jun 18, 2026New permit approved

Permit 908946 resolved from recent W-1 document.

New PermitReagan CountyBlack Swan OpCo. LLCAPI 42383421582 source records
W-1 explainerView source documents
Jun 18, 2026P-16 document filed

P-16 acreage designation

Document FiledReagan CountyBlack Swan OpCo. LLCAPI 4238342158
P-16 explainerView source documents
Jun 18, 2026L-1 document filed

L-1 electric log

Document FiledReagan CountyBlack Swan OpCo. LLCAPI 4238342158
L-1 explainerView source documents
Jun 3, 2026P-16 document filed

P-16 acreage designation

Document FiledReagan CountyBlack Swan OpCo. LLCAPI 4238342158
P-16 explainerView source documents
Jun 18, 2026Completion report filed

Potential test date April 1, 2026-01. Calculated 24-hour rate: oil 579 bbl, gas 375 mcf, water 3194 bbl. Test period: oil 579 bbl, gas 375 mcf, water 3194 bbl.

Completion Report FiledReagan CountyBlack Swan OpCo. LLCAPI 4238342158
G-1 explainerView source documents
Documents

Recent source documents

W-15 cementing reportW-15Jun 18, 2026W-15 explainer
P-16 acreage designationP-16Jun 18, 2026P-16 explainer
L-1 electric logL-1Jun 18, 2026L-1 explainer
W-2 completion reportW-2Jun 18, 2026W-2 explainer
RRC documentDirectional surveyJun 3, 2026Survey document explainer
W-15 cementing reportW-15Jun 3, 2026W-15 explainer
P-16 acreage designationP-16Jun 3, 2026P-16 explainer
L-1 electric logL-1Jun 3, 2026L-1 explainer
W-2 completion reportW-2Jun 3, 2026W-2 explainer
8 linked wells

Related wells from the same lease, operator, field, or county

UL 8-4 #1WB

Reagan County - Black Swan OpCo. LLC - Spraberry (Trend Area)

Survey UL - Abstract U139 - Block and - Section 4

Recently completedCementing Report FiledJun 17, 2026
View record
UL 8-4 #2WB

Reagan County - Black Swan OpCo. LLC - Spraberry (Trend Area)

Survey UL - Abstract U139 - Block and - Section 4

Recently completedCementing Report FiledJun 17, 2026
View record
UL 8-4 #3WA

Reagan County - Black Swan OpCo. LLC - Spraberry (Trend Area)

Survey UL - Abstract U139 - Block and - Section 4

Recently completedCementing Report FiledJun 17, 2026
View record
UL 8-4 #5WB

Reagan County - Black Swan OpCo. LLC - Spraberry (Trend Area)

Survey UL - Abstract U139 - Block and - Section 4

Recently completedCementing Report FiledJun 17, 2026
View record
UL 8-4 #6WA

Reagan County - Black Swan OpCo. LLC - Spraberry (Trend Area)

Survey UL - Abstract U139 - Block and - Section 4

Recently completedCementing Report FiledJun 17, 2026
View record
UL 8-4 #7WB

Reagan County - Black Swan OpCo. LLC - Spraberry (Trend Area)

Survey UL - Abstract U139 - Block and - Section 4

Recently completedCementing Report FiledJun 17, 2026
View record
STOKES 13 SWD #1

Reagan County - PIONEER NATURAL RES. USA, INC. - SPRABERRY (TREND AREA)

Survey L&SV RR CO - Abstract 311 - Block C - Section 13

ProducingMonthly Production ReportApr 30, 2026
View record
UNIVERSITY CENTRAL #0814SW

Reagan County - RRP OPERATING LLC - BLOCK 44 (LOWER ELLENBURGER)

Survey UNIVERSITY LANDS - Block 8 - Section 14

ProducingMonthly Production ReportDec 31, 2025
View record
Related entities
Black Swan OpCo. LLCReagan CountySpraberry (Trend Area)
Source form explainers
W-1 drilling permitW-2 oil completionW-12 directional surveyL-1 electric log
Map point
UL 8-4 xxxxx #4WBAPI 4238342158
100 ft

31.214466, -101.610867

Open in FutureWells map
Source note

Well pages combine public records, linked source documents, derived status signals, and normalized activity. Verify API, operator, status, production, location, and lifecycle facts against official records before relying on them.

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