WELL · 42-039-33179 · DISTRICT 3

Old Ocean Unit #261

Brazoria County · Old Ocean (Armstrong) field · Producing · Directional

Old Ocean Unit #261 (API 42-039-33179) is a well in Brazoria County operated by Hilcorp Energy Company, completed September 18, 2021 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 2013 and 2020, permitted to 11,500 ft.

Completion filings report 3 formation tops, including Chenault, Campbell, Larsen.

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

Operator of record

Hilcorp Energy Company

Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,454 permits on file · (713) 209-2411

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Hilcorp Energy Company
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	Hilcorp Energy CompanyMar 18, 2020

11,500: total depth, ft
2: permits on file
Mar 18, 2020: last permit issued
Sep 18, 2021: completed
0: cumulative oil, bbl
720K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2013 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Sep 18, 2021
Shut in: —
Plugged: —

Operator's P-5 on the schedule: X

Surface location

29.054445, -95.719241

OpenStreetMap → · Google Maps →

Permit surface location from the RRC GIS record, in Brazoria 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 2 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Old Ocean Unit G-3-271184	Old Ocean (Larsen)	Hilcorp Energy Company	1	0	718K	Jul 2013 – Jul 2026
Old Ocean Unit G-3-289521	Old Ocean (Armstrong)	Hilcorp Energy Company	1	0	1.79K	Apr 2020 – Jul 2026

Gas, mcf lease total

Last 12 months 188 · prior 12 155(+21%)

Chain of custody

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

1Hilcorp Energy CompanyJul 2013 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
862754-99	Recompletion	Hilcorp Energy Company	Mar 13, 2020	Mar 18, 2020	Apr 21, 2020	11,500
762462-99	Drill	Hilcorp Energy Company	May 10, 2013	May 15, 2013	Jun 8, 2013	11,500

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-3-271184	—	—	—	—
—	— G-3-289521	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 25 ft elevation.Download CSV →

Formation	MD ft	Subsea
Chenault	9,570	-9,545
Campbell	10,318	-10,293
Larsen	10,424	-10,399

Perforations

Perforated and open-hole intervals.

From	To	Type
10,008	10,012	Perforated
10,023	10,036	Perforated
10,520	10,540	Perforated
10,520	10,740	Perforated
10,594	10,702	Perforated
10,720	10,740	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	2,638	17.5	2,710 S
9.625	10,860	12.25	1,810 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 →

Filed	W-2 / G-1 date	Logs referenced
Jun 15, 2023	May 9, 2023	—
Jul 22, 2020	Jun 17, 2020	—
Nov 3, 2014	May 9, 2014	—
Jan 27, 2014	Sep 20, 2013	Yes

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.

Wellbore filings for 42-039-33179 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-039-33179 → scanned completion filings

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 →

Old Ocean Unit42-039-04012

1.0 KM · Hilcorp Energy Company · Section with this well →

F-9	9,592	-9,557
F-12	9,967	-9,932
F-13	10,040	-10,005
F-19	10,444	-10,409
F-20	10,544	-10,509
F-21	10,610	-10,575

Old Ocean Unit42-039-33044

2.3 KM · Hilcorp Energy Company · Section with this well →

F-11 (Armstrong)	9,897	-9,867
F-24	10,500	-10,470
F-25	10,800	-10,770
F-28	11,800	-11,770
Campbell	—
Chenault	—
Armstrong	—

Old Ocean Unit42-039-33009

2.6 KM · Hilcorp Energy Company · Section with this well →

F-12	9,941	-9,921
F-16	10,120	-10,100
F-19	10,346	-10,326
F-21	10,445	-10,425

Old Ocean Unit42-039-32852

3.4 KM · Hilcorp Energy Company · Section with this well →

Chenault	9,740	-9,714
Chenault (F-9)	9,740	-9,714
Armstrong	10,075	-10,049
Armstrong (F-11)	10,075	-10,049
F-19	10,532	-10,506
Larsen (F-19)	10,532	-10,506
Larsen	10,532	-10,506
F-26	11,285	-11,259

9 TOPS · FIRST 8

Old Ocean Unit42-039-33074

3.4 KM · Hilcorp Energy Company · Section with this well →

Chenault	9,775	-9,750
Chenault (F-9)	9,775	-9,750
Campbell (F-16)	10,338	-10,313
Campbell	10,338	-10,313
Larsen (F-21)	10,584	-10,559
Larsen	10,584	-10,559

Old Ocean Unit42-039-02820

3.5 KM · Hilcorp Energy Company · Section with this well →

Chenault	9,488	-9,445
Armstrong	9,760	-9,717
Campbell	10,191	-10,148

Old Ocean Unit42-039-32765

5.0 KM · Hilcorp Energy Company · Section with this well →

F-12	10,349	-10,326
F12	10,349	-10,326
F-23	11,437	-11,414
F-24	11,533	-11,510
Frio	—
Otis - Disposal	—
Oligocene - Disposal	—
Miocene (undifferentiated)	—

10 TOPS · FIRST 8

Smith Heirs Unit42-039-32897

5.2 KM · Davis Operating Company, Inc. · Section with this well →

Anahuac	7,000	-6,976
Frio	8,900	-8,876
F-23	11,700	-11,676

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/03933179, documented in the API reference.