WELL · 42-391-30315 · DISTRICT 2

Lambert E, M.F. #A 8

Lambert E, M.F. #A 8 (API 42-391-30315) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 6 drilling permits (amended once) between 1986 and 2024, permitted to 5,950 ft.

Completion filings report 6 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 4 leases have reported 22.8M barrels of oil and 15.1M mcf of gas since January 1993, last reporting in July 2026. The leases carry 599 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Houston, TX · P-5 Y, filed Mar 26, 2026 · 3,453 permits on file · (713) 209-2411

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	Hilcorp Energy CompanyJun 18, 2024

5,950: total depth, ft
7: permits on file
Jun 18, 2024: last permit issued
—: completed
22.8M: cumulative oil, bbl
15.1M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: —
Shut in: —
Plugged: —

Surface location

28.329408, -97.185049

OpenStreetMap → · Google Maps →

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

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 4 leases this well is completed on; they carry 599 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Tom Oconnor (5800 SD) Fld. Unit O-2-5280	Tom Oconnor (5800)	Hilcorp Energy Company	594	22.8M	14.9M	Jan 1993 – Jul 2026
Lambert E, M.F. O-2-12823	Tom Oconnor (4400)	Hilcorp Energy Company	3	35.3K	937	Oct 2023 – Jul 2026
Mary F. Lambert "EA" G-2-254174	Tom O'Connor (5350 Sand)	Hilcorp Energy Company	1	0	46.1K	Sep 2009 – Apr 2024
Lambert, Mary F. "EA" G-2-221968	Tom Oconnor (5425 Sand)	Hilcorp Energy Company	1	0	179K	Aug 2006 – Sep 2009

Oil, barrels lease total

Last 12 months 680,176 · prior 12 542,052(+25%)

Gas, mcf lease total

Last 12 months 117,961 · prior 12 84,118(+40%)

Chain of custody

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

1Quintana Pet. Corp.Jan 1993 → Nov 2000
2Hilcorp Energy CompanyDec 2000 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
900421-99	Recompletion	Hilcorp Energy Company	Jun 12, 2024	Jun 18, 2024	—	5,950
685127-99	Recompletion	Hilcorp Energy Company	Sep 15, 2009	Sep 17, 2009	Sep 22, 2009	5,950
653607-99	Recompletion	Hilcorp Energy Company	Jan 21, 2008	Feb 7, 2008	—	5,950
618353-98	Recompletion	Hilcorp Energy Company	Jul 24, 2006	May 3, 2006	—	5,950
618353-99	Recompletion	Hilcorp Energy Company	Apr 27, 2006	May 3, 2006	—	5,950
326621-99	Recompletion	Quintana Pet. Corp.	Feb 17, 1987	Feb 27, 1987	—	5,900
303045-99	Recompletion	Exxon Corp.	Jun 6, 1986	Jun 9, 1986	—	5,950

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-2-221968	—	—	—	—
—	— G-2-254174	—	—	—	—
—	— O-2-5280	—	—	—	—
—	— O-2-12823	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 53 ft elevation.Download CSV →

Formation	MD ft	Subsea
LagartoLARGARTO	1,500	-1,447
Oakville	2,750	-2,697
Catahoula	3,300	-3,247
CatahoulaCATAHOULA (MIOCENE)	3,300	-3,247
AnahuacANAHUAC (MIOCENE)	4,100	-4,047
Frio	4,362	-4,309
FrioFRIO-GRETA (OLIGOCENE)	4,365	-4,312
FrioMIDDLE FRIO (SINTON)	5,000	-4,947
FrioLOWER FRIO (OLIGOCENE)	5,880	-5,827
NO Change	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
4,362	4,372	Perforated
5,326	5,333	Perforated
5,448	5,458	Perforated
5,520	5,528	Perforated
5,756	5,765	Perforated
5,872	5,876	Perforated
5,872	—	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	212	17.5	308 S
8.625	1,338	12.25	500 S
8.625	1,338	—	—
5.5	5,948	7.875	1,370 S
5.5	5,949	7.875	137 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
Oct 29, 2024	Sep 5, 2024	—
Apr 8, 2010	Oct 7, 2009	Yes
Jan 26, 2010	—	—
Mar 22, 2007	Aug 14, 2006	Yes
Nov 22, 2006	—	—
Apr 8, 1987	Mar 16, 1987	Yes
Mar 25, 1987	—	—
Jan 29, 1987	Jan 12, 1987	Yes
Mar 25, 1985	Jan 28, 1985	—
Feb 20, 1985	Apr 12, 1974	—
Jan 12, 1984	Jun 7, 1974	—
Jan 12, 1984	Apr 12, 1974	—

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 42-391-30315 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-391-30315 → 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 →

Tom O'Connor (5800 Sd)field Unit42-391-01375

0.2 KM · Quintana Pet. Corp. · Section with this well →

Lagarto	1,500	-1,450
Oakville	2,750	-2,700
Catahoula	3,300	-3,250
Catahoula	3,300	-3,250
Anahuac	4,100	-4,050
Frio	4,365	-4,315
Frio	4,365	-4,315
Frio	5,000	-4,950

9 TOPS · FIRST 8

Lambert, M.F.42-391-01398

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

Frio	1	58
Surface Sand Clay	1,500	-1,441
Lagarto	2,750	-2,691
Oakville	3,300	-3,241
Catahoula	4,100	-4,041
Anahuac	4,365	-4,306
Frio	4,785	-4,726
Frio	4,785	-4,726

9 TOPS · FIRST 8

Tom O'Connor (5800'SD)FIELD Unit42-391-31923

0.5 KM · Quintana Pet. Corp. · Section with this well →

Lagarto	1,500	-1,452
Oakville	2,750	-2,702
Catahoula	3,300	-3,252
Catahoula	3,637	-3,589
Anahuac	4,100	-4,052
Greta	4,362	-4,314
Frio	4,362	-4,314
Frio	4,365	-4,317

11 TOPS · FIRST 8

Tom O'Connor (5800 SD) FLD Unit42-391-31888

0.5 KM · Quintana Pet. Corp. · Section with this well →

Lagarto	1,500	-1,451
Oakville	2,750	-2,701
Catahoula	3,300	-3,251
Catahoula	3,656	-3,607
Anahuac	4,100	-4,051
Frio	4,365	-4,316
Frio	4,406	-4,357
Frio	5,000	-4,951

11 TOPS · FIRST 8

Tom O'Connor (5800SD) FLD Unit42-391-30343

0.7 KM · Quintana Pet. Corp. · Section with this well →

Surface Sand Clay	1,500	-1,439
Lagarto	2,750	-2,689
Oakville	3,300	-3,239
Catahoula	3,370	-3,309
Anahuac	4,365	-4,304
4400 Sand	4,376	-4,315
Greta	4,440	-4,379
Frio	4,785	-4,724

9 TOPS · FIRST 8

Tom O'Connor (5800'SD)FIELD Unit42-391-01364

0.8 KM · Quintana Pet. Corp. · Section with this well →

Lagarto	1,500	-1,437
Oakville	2,750	-2,687
Catahoula	3,300	-3,237
Catahoula	3,300	-3,237
Catahoula	3,300	-3,237
Anahuac	4,100	-4,037
Anahuac	4,100	-4,037
Frio	4,365	-4,302

16 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-32696

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

Lagarto	2,750	-2,698
Oakville	3,300	-3,248
Cathoula	3,620	-3,568
Catahoula	3,620	-3,568
Catahoula	4,100	-4,048
Anahuac	4,365	-4,313
Frio	4,366	-4,314
Frio	4,785	-4,733

12 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-32066

0.8 KM · Quintana Pet. Corp. · Section with this well →

Lagarto	1,500	-1,454
Oakville	2,750	-2,704
Catahoula	3,300	-3,254
Catahoula	3,564	-3,518
Anahuac	4,100	-4,054
Frio	4,362	-4,316
Frio	4,365	-4,319
Frio	5,000	-4,954

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.

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