WELL · 42-261-31350 · DISTRICT 4

Armstrong Tobin #3

N

Kenedy County · Candelaria (J-45) field  · Vertical

Armstrong Tobin #3 (API 42-261-31350) is a well in Kenedy County operated by Headington Oil Company L.P., completed May 17, 2004.

The RRC has issued one drilling permit, issued March 3, 2004, permitted to 10,500 ft.

Completion filings report 6 formation tops, including Miocene (undifferentiated), Catahoula, Frio, J-45.

No lease production has been reported under this well’s leases.

It holds an active disposal or injection permit, with 7.15K barrels injected in the 12 months reported through January 2026.

Operator of record

Headington Oil Company L.P.

Dallas, TX · P-5 Y, filed Mar 7, 2014 · 135 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHeadington Oil Company L.P.
Production reportsHeadington Energy Partners, LLCthrough Sep 2017
Latest permitHeadington Oil Company, L.P.Mar 3, 2004

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

10,500
total depth, ft
1
permits on file
Mar 3, 2004
last permit issued
May 17, 2004
completed
0
cumulative oil, bbl
1.19M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2004 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 17, 2004
Shut in
—
Plugged
—

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Armstrong, Tobin "B" G-4-203505Candelaria (Consolidated)Headington Energy Partners, LLC101.19MMay 2004 – Jul 2026
Armstrong, Tobin G-4-204106Candelaria (J-45)Headington Oil Company, L.P.100May 2004 – Dec 2004

No volumes reported on these leases in the last three years.

Chain of custody

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

  1. 1Headington Oil Company, L.P.May 2004 → Mar 2008
  2. 2Headington Oil Company LLCApr 2008 → Jan 2015
  3. 3Headington Energy Partners, LLCFeb 2015 → Sep 2017

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
542775-99DrillHeadington Oil Company, L.P.Mar 3, 2004Mar 3, 2004—10,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-203505————
—— G-4-204106————

Formation tops

As filed on W-2/G-1. Subsea from 26 ft elevation.Download CSV →

FormationMD ftSubsea
Miocene (undifferentiated)MIOCENE/LAGARTO/OAKVILLE275-249
CatahoulaCATAHOULA/ANAHUAC3,565-3,539
CatahoulaCATAHOULA/FRIO4,715-4,689
FrioFRIO J-459,531-9,505
J-459,531-9,505
96009,625-9,599
FrioFRIO 96009,625-9,599
Vicksburg——

Perforations

Perforated and open-hole intervals.

FromToType
9,2509,650Perforated
9,5319,536Perforated
9,6259,641Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,40012.25660 S
4.59,7008.5500 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
00Sep 30, 2025Sep 17, 2025—
00Aug 21, 2019Jul 19, 2019—
00Jun 20, 2005Apr 1, 2005—
00Jan 3, 2005Aug 18, 2004—
00Nov 10, 2004——
00Oct 29, 2004Aug 18, 2004Yes
00Sep 30, 2004——

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.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

7.15K
bbl, last 12 reported months
92.5K
bbl, all reported
Jan 2026
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000115987H-1 InjectionActive5001,2009,250–9,650

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 7,151 · prior 12 5,124(+40%)

01K2K3K20252026

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/26131350, documented in the API reference.