WELL · 42-493-32978 · DISTRICT 1

The Tuscai 66H #66H

Y

Wilson County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

The Tuscai 66h #66H (API 42-493-32978) is a horizontal well in Wilson County operated by Trinity Operating (Usg) LLC, completed December 9, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued July 6, 2023, permitted to 8,999 ft.

Completion filings report 10 formation tops, including Escondido, Olmos, Anacacho, Austin Chalk.

Its lease has reported 61.4K barrels of oil and 36K mcf of gas since December 2023, last reporting in July 2026.

Operator of record

Trinity Operating (Usg) LLC

Houston, TX · P-5 Y, filed Nov 4, 2025 · 392 permits on file · (888) 510-9581

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleTrinity Operating (Usg) LLC
Production reportsTrinity Operating (Usg), LLCthrough Apr 2026
Latest permitTrinity Operating (Usg), LLCJul 6, 2023
8,999
total depth, ft
2
permits on file
Jul 6, 2023
last permit issued
Dec 9, 2023
completed
61.4K
cumulative oil, bbl
36K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 9, 2023
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.996689, -98.209155

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Wilson County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
The Tuscai 66H O-1-21267Eagleville (Eagle Ford-1)Trinity Operating (Usg), LLC161.4K36KDec 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 12,962 · prior 12 11,399(+14%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 8,881 · prior 12 6,772(+31%)

05K10K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Trinity Operating (Usg), LLCDec 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
890997-98DrillTrinity Operating (Usg), LLCAug 16, 2023Jul 6, 2023Aug 29, 20238,999
890997-99DrillTrinity Operating (Usg), LLCMay 31, 2023Jul 6, 2023Aug 29, 20238,999

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-21267————

Formation tops

As filed on W-2/G-1. Subsea from 382 ft elevation.Download CSV →

FormationMD ftSubsea
Escondido5,652-5,270
Olmos6,325-5,943
AnacachoANACACHO - H2S——
Austin ChalkAUSTIN CHALK - H2S——
BudaBUDA - H2S——
Eagle FordEAGLE FORD - H2S——
EdwardsEDWARDS - H2S, DISPOSAL——
GeorgetownGEORGETOWN - H2S——
Navarro——
WilcoxWILCOX - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
8,18219,127Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,01512.251,361 S
5.519,1428.753,099 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Feb 29, 2024Jan 25, 2024Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

The Tuscai 64H42-493-32976

0.0 KM · Trinity Operating (Usg), LLC · Section with this well →

Escondido5,670-5,287
Olmos6,354-5,971
Anacacho7,300-6,917
Austin Chalk7,472-7,089
Eagle Ford7,682-7,299
Eagle Ford7,710-7,327
Anacacho—
Wilcox—

10 TOPS · FIRST 8

Lucherk-Biela A42-493-32925

0.8 KM · Recoil Resources Operating, Inc. · Section with this well →

Wilcox2,953-2,576
Navarro5,709-5,332
Olmos6,372-5,995
Anacacho7,343-6,966
Austin Chalk7,479-7,102
Eagle Ford7,717-7,340
Georgetown—
Buda—

9 TOPS · FIRST 8

Lucherk Unit42-493-32923

0.8 KM · Recoil Resources Operating, Inc. · Section with this well →

Wilcox2,951-2,574
Navarro5,707-5,330
Olmos6,370-5,993
Anacacho7,357-6,980
Austin Chalk7,510-7,133
Eagle Ford7,798-7,421
Edwards—
Buda—

9 TOPS · FIRST 8

Lucherk Unit42-493-32924

0.8 KM · Recoil Resources Operating, Inc. · Section with this well →

Wilcox2,963-2,586
Navarro5,179-4,802
Olmos6,379-6,002
Anacacho7,357-6,980
Austin Chalk7,504-7,127
Eagle Ford7,789-7,412
Buda—
Georgetown—

9 TOPS · FIRST 8

Lucherk-Biela B42-493-32926

0.8 KM · Recoil Resources Operating, Inc. · Section with this well →

Wilcox2,957-2,580
Navarro5,713-5,336
Olmos6,374-5,997
Anacacho7,338-6,961
Austin Chalk7,480-7,103
Eagle Ford7,718-7,341
Buda—
Edwards—

9 TOPS · FIRST 8

Lynyrd Skynyrd 63H42-493-32975

1.6 KM · Trinity Operating (Usg), LLC · Section with this well →

Escondido5,821-5,451
Olmos6,492-6,122
Anacacho7,463-7,093
Austin Chalk7,625-7,255
Eagle Ford7,839-7,469
Eagle Ford7,873-7,503
Wilcox—
Navarro—

9 TOPS · FIRST 8

Lynyrd Skynyrd 62H42-493-32974

1.6 KM · Trinity Operating (Usg), LLC · Section with this well →

Escondido5,842-5,472
Olmos6,507-6,137
Eagle Ford—
Edwards—
Georgetown—
Navarro—
Wilcox—
Buda—

10 TOPS · FIRST 8

Lynyrd Skynyrd 61H42-493-32973

1.6 KM · Trinity Operating (Usg), LLC · Section with this well →

Escondido5,744-5,374
Olmos6,376-6,006
Anacacho7,353-6,983
Austin Chalk7,519-7,149
Eagle Ford7,734-7,364
Eagle Ford7,763-7,393
Wilcox—
Navarro—

10 TOPS · FIRST 8

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/49332978, documented in the API reference.