WELL · 42-135-39362 · DISTRICT 8

Tatia #4

N

Ector County · Sallie Ann (Spraberry-Wolfcamp) field  · Vertical

Tatia #4 (API 42-135-39362) is a well in Ector County operated by Fdl Operating LLC, completed February 13, 2008.

The RRC has issued 2 drilling permits between 2007 and 2017, permitted to 11,000 ft.

Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.

Its 2 leases have reported 3.46M barrels of oil and 4.8M mcf of gas since November 2007, last reporting in July 2026. The leases carry 53 wells, so these are lease totals, not this well alone.

Operator of record

FDL Operating LLC

Judson, TX · P-5 Y, filed Jul 7, 2023 · 182 permits on file · (800) 773-1203

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleFDL Operating LLC
Production reportsDiamondback E&P LLCthrough Apr 2026
Latest permitFDL Operating, LLCJul 25, 2017

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,000
total depth, ft
2
permits on file
Jul 25, 2017
last permit issued
Feb 13, 2008
completed
3.46M
cumulative oil, bbl
4.8M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2007 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 13, 2008
Shut in
—
Plugged
—

Surface location

31.666531, -102.295387

OpenStreetMap → ·  Google Maps →

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

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 53 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Tatia O-10-48987Spraberry (Trend Area)Diamondback E&P LLC302.93M3.82MMar 2017 – Jul 2026
Tatia O-10-38567Sallie Ann (Spraberry-Wolfcamp)FDL Operating, LLC23523K982KNov 2007 – Jun 2019

Oil, barrels lease total

Last 12 months 201,441 · prior 12 230,421(-13%)

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 293,743 · prior 12 270,174(+9%)

020K40K60K202420252026

Chain of custody

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

  1. 1EXL Petroleum, LPNov 2007 → Oct 2008
  2. 2Devon Energy Production Co, L.P.Nov 2008 → Jul 2016
  3. 3FDL Operating, LLCAug 2016 → Jun 2019
  4. 4Firebird Energy LLCJul 2019 → Nov 2022
  5. 5Diamondback E&P LLCDec 2022 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
829098-99Field transferFDL Operating, LLCJul 22, 2017Jul 25, 2017Oct 25, 200710,350
644894-99DrillEXL Petroleum, LPAug 22, 2007Aug 24, 2007Oct 24, 200711,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-38567————
—— O-10-48987————

Formation tops

As filed on W-2/G-1. Subsea from 2,893 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,917-5,024
Dean9,222-6,329
Wolfcamp9,295-6,402

Perforations

Perforated and open-hole intervals.

FromToType
8,05010,250Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
12.7529617.5360 S
8.6255,474112,225 S
5.55,4747.875700 S
5.510,3377.8751,050 S
5.5—7.875700 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
00Jan 17, 2019Dec 3, 2018—
00Dec 1, 2017Sep 2, 2017Yes
00Nov 11, 2008Apr 8, 2008Yes
00Oct 30, 2008——

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) and the University Lands library. 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 →

Tatia42-135-42147

0.2 KM · FDL Operating, LLC · Section with this well →

Abo8,696-5,794
Dean9,145-6,243
Wolfcamp9,365-6,463

Tatia42-135-43796

0.5 KM · Firebird Energy LLC · Section with this well →

Santa Rosa1,3321,570
Yates3,104-202
Seven Rivers3,863-961
Queen4,246-1,344
Grayburg4,763-1,861
San Andres5,090-2,188
Glorieta6,141-3,239
Clear Fork7,158-4,256

10 TOPS · FIRST 8

Tatia42-135-43793

0.5 KM · Firebird Energy LLC · Section with this well →

Santa Rosa1,3321,570
Yates3,104-202
Seven Rivers3,863-961
Queen4,246-1,344
Grayburg4,763-1,861
San Andres5,090-2,188
Glorieta6,141-3,239
Clear Fork7,158-4,256

10 TOPS · FIRST 8

Tatia42-135-43792

0.6 KM · Firebird Energy LLC · Section with this well →

Santa Rosa1,3321,570
Yates3,104-202
Seven Rivers3,863-961
Queen4,246-1,344
Grayburg4,763-1,861
San Andres5,090-2,188
Glorieta6,141-3,239
Clear Fork7,158-4,256

10 TOPS · FIRST 8

Tatia42-135-39361

0.6 KM · FDL Operating, LLC · Section with this well →

Spraberry7,650-4,757
Dean9,184-6,291
Wolfcamp9,265-6,372

Tatia42-135-42750

0.6 KM · FDL Operating, LLC · Section with this well →

Wolfcamp8,612-5,717
Abo8,843-5,948
Dean9,123-6,228
Middle Wofcamp9,612-6,717

Tatia42-135-43795

0.8 KM · Firebird Energy LLC · Section with this well →

Santa Rosa1,3321,563
Yates3,104-209
Seven Rivers3,863-968
Queen4,246-1,351
Grayburg4,763-1,868
San Andres5,090-2,195
Glorieta6,141-3,246
Clear Fork7,158-4,263

10 TOPS · FIRST 8

Tatia42-135-43794

0.8 KM · Firebird Energy LLC · Section with this well →

Santa Rosa1,3321,563
Yates3,104-209
Seven Rivers3,863-968
Queen4,246-1,351
Grayburg4,763-1,868
San Andres5,090-2,195
Glorieta6,141-3,246
Clear Fork7,158-4,263

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/13539362, documented in the API reference.