WELL · 42-391-01449 · DISTRICT 2

Lambert M. F. #H 1G

N

Refugio County · Tom Oconnor (5900 Sand) field  · Vertical

Lambert M. F. #H 1G (API 42-391-01449) is a well in Refugio County operated by H & D Operating Company, completed August 18, 1971.

The RRC has issued 7 drilling permits (amended once) between 1987 and 2022, permitted to 6,003 ft.

It was permitted by Hilcorp Energy Company and has since transferred to H & D Operating Company on the wellbore schedule.

Completion filings report 8 formation tops, including Lagarto, Oakville, Anahuac, Catahoula.

Its 4 leases have reported 22.8M barrels of oil and 14.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 598 wells, so these are lease totals, not this well alone.

Operator of record

H & D Operating Company

Permitted by Hilcorp Energy Company; the EWA schedule now lists a different operator.

Refugio, TX · P-5 Y, filed Apr 2, 2015 · 46 permits on file · (361) 319-0514

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleH & D Operating Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyFeb 9, 2022

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

6,003
total depth, ft
8
permits on file
Feb 9, 2022
last permit issued
Aug 18, 1971
completed
22.8M
cumulative oil, bbl
14.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Aug 18, 1971
Shut in
—
Plugged
—

Surface location

28.341592, -97.175523

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy Company59422.8M14.9MJan 1993 – Jul 2026
Lambert, M.F. O-2-12349Tom Oconnor (4600)Hilcorp Energy Company200Mar 2022 – Jul 2026
Lambert, M. F. G-2-195726Tom Oconnor (5100, East)Hilcorp Energy Company1021.9KMay 2003 – Aug 2009
Lambert, M.F. G-2-129532Tom Oconnor (4600)H & D Operating Company100Jan 1993 – Feb 1993

Oil, barrels lease total

Last 12 months 673,200 · prior 12 524,408(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,526 · prior 12 83,712(+40%)

020K40K60K202420252026

Chain of custody

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

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

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
876712-98RecompletionHilcorp Energy CompanyMar 14, 2022Feb 9, 2022Jan 26, 20226,000
876712-99RecompletionHilcorp Energy CompanyFeb 2, 2022Feb 9, 2022—6,000
683565-99RecompletionHilcorp Energy CompanyJul 28, 2009Aug 5, 2009Jul 30, 20096,000
531886-99RecompletionHilcorp Energy CompanyMay 13, 2003May 14, 2003May 2, 20035,210
407187-99RecompletionQuintana Pet. Corp.Dec 14, 1992Dec 18, 1992Dec 18, 19926,000
353428-99RecompletionHewit & DoughertyNov 18, 1988Nov 21, 1988—6,003
341322-99RecompletionHewit & DoughertyJan 13, 1988Feb 18, 1988—6,003
330880-99RecompletionHewit & DoughertyMay 29, 1987Jun 2, 1987—6,003

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-129532————
—— G-2-195726————
—— O-2-5280————
—— O-2-5280————
—— O-2-12349————

Formation tops

As filed on W-2/G-1. Subsea from 49 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,451
LagartoLARGARTO2,750-2,701
Oakville2,750-2,701
Anahuac3,300-3,251
CatahoulaCATAHOULA (MIOCENE)3,300-3,251
Oakville3,300-3,251
AnahuacANAHUAC (MIOCENE)4,100-4,051
Anahuac4,365-4,316
FrioFRIO-GRETA4,365-4,316
FrioFRIO-GRETA (OLIGOCENE)4,365-4,316
46004,498-4,449
FrioMIDDLE FRIO4,785-4,736
FrioMIDDLE FRIO (SINTON)5,000-4,951
55005,516-5,467
55005,519-5,470
Toc5,590-5,541
FrioLOWER FRIO (OLIGOCENE)5,880-5,831

Perforations

Perforated and open-hole intervals.

FromToType
4,4984,503Perforated
4,6424,648Perforated
5,0125,017Perforated
5,0405,046Perforated
5,0495,055Perforated
5,0585,078Perforated
5,5175,519Perforated
5,5945,598Perforated
5,6285,632Perforated
5,7385,745Perforated
5,8685,870Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
5.58768.625—
9.6251,01712650 S
9.6251,01715650 S
5.51,8938.625—
5.55,2078.625428 S
5.55,2078.75428 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
00Jun 28, 2022May 17, 2022—
00Jan 27, 2010Aug 31, 2009Yes
00Nov 3, 2009——
00Jan 29, 2004May 30, 2003Yes
00Jul 30, 2003——
00Apr 28, 1993Mar 1, 1993Yes
00Mar 18, 1993——
00Feb 27, 1989Dec 8, 1988Yes
00Jan 26, 1989——
00Apr 22, 1988Mar 9, 1988Yes
00Mar 30, 1988——
00Jul 6, 1987Jun 12, 1987Yes
00Jun 18, 1987——
00Jan 12, 1984Aug 23, 1971—
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 →

Lambert, M.F.42-391-33298

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

Catahoula3,300-3,250
Frio4,365-4,315
Jackson—

Lambert, M.F.42-391-33297

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

Catahoula3,300-3,250
Jackson—
Frio—

M. F. Lambert42-391-01442

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

Catahoula3,300-3,236
44004,402-4,338
Frio5,000-4,936
51005,152-5,088
Jackson—
NO Change—

Tom O'Connor (5800 SD) Fld. Unit42-391-32701

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

Lagarto2,750-2,696
Oakville3,300-3,246
Catahoula3,634-3,580
Catahoula4,100-4,046
Frio4,354-4,300
Anahuac4,365-4,311
Frio4,785-4,731
Frio5,400-5,346

10 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-01428

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

Catahoula3,602-3,551
Frio4,365-4,314
Top 53005,269-5,218
Jackson—

M. F. Lambert42-391-01446

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

Catahoula3,609-3,558
Frio4,362-4,311
Greta5,068-5,017
5675'5,642-5,591
5800'5,807-5,756
5900'5,886-5,835
NO Change—

Tom O'Connor (5800 SD) Fld. Unit42-391-01444

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

Lagarto2,750-2,699
Catahoula3,618-3,567
Oakville4,100-4,049
Anahuac4,365-4,314
4400 Sand4,374-4,323
Frio4,374-4,323
Greta5,120-5,069
Jackson—

9 TOPS · FIRST 8

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

0.6 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

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/39101449, documented in the API reference.