WELL · 42-391-01364 · DISTRICT 2

Lambert, M.F. #H043

N

Refugio County  · Vertical

Lambert, M.F. #H043 (API 42-391-01364) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 4 drilling permits between 1979 and 2023, permitted to 5,908 ft.

Completion filings report 9 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 2 leases have reported 24.5M barrels of oil and 17.5M mcf of gas since January 1993, last reporting in July 2026. The leases carry 639 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 schedulenone
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyNov 16, 2023
5,908
total depth, ft
4
permits on file
Nov 16, 2023
last permit issued
—
completed
24.5M
cumulative oil, bbl
17.5M
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

28.334631, -97.179990

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 2 leases this well is completed on; they carry 639 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Lambert, M. F. O-2-2115Tom Oconnor (4400)Hilcorp Energy Company451.73M2.54MJan 1993 – Jul 2026
Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy Company59422.8M14.9MJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 746,910 · prior 12 620,599(+20%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 120,592 · prior 12 89,262(+35%)

020K40K60K202420252026

Chain of custody

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

  1. 1Pennzoil Exploration & Prod. Co.Jan 1993 → Feb 1999
  2. 2Quintana Pet. Corp.Jan 1993 → Nov 2000
  3. 3Pennzenergy Exp. & Prod., L.L.C.Mar 1999 → Mar 2000
  4. 4Devon Energy Production Co, L.P.Apr 2000 → Jul 2002
  5. 5Hilcorp Energy CompanyDec 2000 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
895279-99RecompletionHilcorp Energy CompanyNov 13, 2023Nov 16, 2023—5,908
344726-99RecompletionQuintana Pet. Corp.Apr 4, 1988May 10, 1988—5,908
339978-99RecompletionHewit & DoughertyDec 10, 1987Dec 14, 1987—5,908
67070-99RecompletionHewit & DoughertyDec 18, 1979Dec 18, 1979—5,908

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-2115————
—— O-2-5280————

Formation tops

As filed on W-2/G-1. Subsea from 63 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,437
Oakville2,750-2,687
Catahoula3,300-3,237
CatahoulaCATAHOULA (MIOCENE)3,300-3,237
CatahoulaCATAHOULA(MIOCENE)3,300-3,237
AnahuacANAHUAC (MIOCENE)4,100-4,037
AnahuacANAHUAC(MIOCENE)4,100-4,037
Frio4,365-4,302
FrioFRIO GRETA (OLIGOCENE)4,365-4,302
FrioFRIO-GRETA(OLIGOCENE)4,365-4,302
FrioMIDDLE FRIO (SINTON)5,000-4,937
54005,342-5,279
5750'5,700-5,637
5800'5,752-5,689
5900'5,860-5,797
FrioLOWER FRIO (OLIGOCENE)5,880-5,817

Perforations

Perforated and open-hole intervals.

FromToType
4,3704,380Perforated
5,3455,350Perforated
5,536—Perforated
5,7025,706Perforated
5,7495,760Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.75546—350 S
10.7554613.5635 S
1.55,687——
55,8979.875350 S
55,897—400 S
55,908—400 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
00Oct 17, 2024Jun 18, 2024—
00Aug 3, 1990Nov 23, 1988—
00Mar 9, 1989Jan 16, 1989—
00Dec 23, 1988——
00Apr 22, 1988Dec 21, 1987Yes
00Feb 25, 1988——
00May 25, 1984——
00Jan 12, 1984Jan 3, 1980Yes
00Jan 12, 1984May 23, 1975—
00Jan 12, 1984——

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 →

Tom O'Connor (5800 SD) Fld. Unit42-391-01394

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

Lagarto2,750-2,688
Oakville3,300-3,238
Catahoula3,624-3,562
Anahuac4,365-4,303
Frio4,367-4,305
Frio4,785-4,723
Frio5,400-5,338
Frio5,845-5,783

9 TOPS · FIRST 8

M. F. Lambert42-391-01388

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

Catahoula3,627-3,576
Frio4,375-4,324
Tom O'Connor (5200, East)5,159-5,108
Tom O'Connor (5900 Sand)5,858-5,807
Jackson—

Tom O'Connor (5800 SD) Fld. Unit42-391-32794

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

Lagarto2,750-2,699
Oakville3,300-3,249
Catahoula3,614-3,563
Catahoula4,100-4,049
Ananhuac4,365-4,314
Anahuac4,365-4,314
Frio4,389-4,338
Frio4,785-4,734

12 TOPS · FIRST 8

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

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

Lagarto2,750-2,698
Oakville3,300-3,248
Cathoula3,620-3,568
Catahoula3,620-3,568
Catahoula4,100-4,048
Anahuac4,365-4,313
Frio4,366-4,314
Frio4,785-4,733

12 TOPS · FIRST 8

Lambert, M.F.42-391-01398

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

Frio158
Surface Sand Clay1,500-1,441
Lagarto2,750-2,691
Oakville3,300-3,241
Catahoula4,100-4,041
Anahuac4,365-4,306
Frio4,785-4,726
Frio4,785-4,726

9 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-01396

0.5 KM · Pennzoil Producing Co. · Section with this well →

Catahoula3,635-3,577
44004,360-4,302
Frio4,360-4,302
45004,428-4,370
54005,456-5,398
5450'5,496-5,438
5500'5,538-5,480
5800'5,750-5,692

9 TOPS · FIRST 8

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

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

Lagarto1,500-1,452
Oakville2,750-2,702
Catahoula3,300-3,252
Catahoula3,637-3,589
Anahuac4,100-4,052
Frio4,362-4,314
Greta4,362-4,314
Frio4,365-4,317

11 TOPS · FIRST 8

Tom O'Connor (5800 SD) FLD Unit42-391-32723

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

Lagarto2,750-2,697
Oakville2,900-2,847
Catahoula3,600-3,547
Catahoula4,100-4,047
Anahuac4,100-4,047
Greta4,150-4,097
Frio4,360-4,307
Anahuac4,365-4,312

16 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/39101364, documented in the API reference.