WELL · 42-391-32701 · DISTRICT 2

Lambert M. F. #161

N

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

Lambert M. F. #161 (API 42-391-32701) is a well in Refugio County operated by Hilcorp Energy Company, completed November 21, 2005.

The RRC has issued 3 drilling permits between 2005 and 2023, permitted to 6,500 ft.

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

Its 3 leases have reported 23.6M barrels of oil and 16.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 652 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 scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyJan 10, 2023
6,500
total depth, ft
3
permits on file
Jan 10, 2023
last permit issued
Nov 21, 2005
completed
23.6M
cumulative oil, bbl
16.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Nov 21, 2005
Shut in
—
Plugged
—

Surface location

28.345516, -97.175169

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 3 leases this well is completed on; they carry 652 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Lambert, M. F. O-2-2880Tom Oconnor (5900 Sand)Hilcorp Energy Company40504K1.58MJan 1993 – Jul 2026
Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy Company59422.8M14.9MJan 1993 – Jul 2026
Lambert, M.F. O-2-8906Tom Oconnor (5200, East)Hilcorp Energy Company18274K418KAug 2004 – Jul 2026

Oil, barrels lease total

Last 12 months 679,069 · prior 12 539,800(+26%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,594 · prior 12 84,578(+39%)

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
881966-99RecompletionHilcorp Energy CompanyJul 11, 2022Jan 10, 2023Jul 9, 20226,209
845289-99RecompletionHilcorp Energy CompanyOct 2, 2018Oct 4, 2018—6,209
606348-99DrillHilcorp Energy CompanySep 14, 2005Sep 16, 2005Oct 1, 20056,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-2880————
—— O-2-5280————
—— O-2-8906————

Formation tops

As filed on W-2/G-1. Subsea from 54 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO2,750-2,696
Oakville3,300-3,246
Catahoula3,634-3,580
CatahoulaCATAHOULA (MIOCENE)4,100-4,046
Frio4,354-4,300
AnahuacANAHUAC (MIOCENE)4,365-4,311
FrioFRIO-GRETA (OLIGOCENE)4,785-4,731
FrioMIDDLE FRIO (SINTON)5,400-5,346
JacksonJACKSON/YEGUA——
FrioLOWER FRIO (OLIGOCENE)——

Perforations

Perforated and open-hole intervals.

FromToType
5,1605,165Perforated
5,2445,260Perforated
5,7345,738Perforated
5,7425,750Perforated
5,8645,884Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,37613.5700 S
5.56,2098.751,095 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
00Mar 7, 2023Jan 25, 2023—
00Jan 8, 2019Nov 2, 2018—
00Jul 11, 2006Dec 6, 2005Yes
00Feb 2, 2006——

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 Unit42-391-31315

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

Catahoula3,300-3,252
Frio5,000-4,952
Greta5,102-5,054
55005,530-5,482
59005,885-5,837

Tom O'Connor (5800 SD) Fld. Unit42-391-01449

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

Lagarto1,500-1,451
Oakville2,750-2,701
Catahoula3,300-3,251
Anahuac3,300-3,251
Anahuac4,100-4,051
Frio4,365-4,316
Frio4,365-4,316
46004,498-4,449

13 TOPS · FIRST 8

Lambert, M.F.42-391-33298

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

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

Lambert, M.F.42-391-33297

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

Catahoula3,300-3,250
Frio—
Jackson—

M. F. Lambert42-391-01442

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

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

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

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

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

Lambert, M. F.42-391-01434

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

Catahoula3,662-3,601
Frio4,400-4,339
Jackson—

Tom O'Connor (5800 SD) FLD Unit42-391-01491

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

Lagarto2,750-2,692
Catahoula3,625-3,567
Oakville4,100-4,042
Frio4,342-4,284
Anahuac4,365-4,307
Jackson—

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/39132701, documented in the API reference.