WELL · 42-391-32700 · DISTRICT 2

Lambert M. F. #159

N

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

Lambert M. F. #159 (API 42-391-32700) is a well in Refugio County operated by Hilcorp Energy Company, completed October 11, 2005.

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

Completion filings report 7 formation tops, including Lagarto, Oakville, Catahoula, Anahuac.

Its 6 leases have reported 26.1M barrels of oil and 21.9M mcf of gas since January 1993, last reporting in July 2026. The leases carry 762 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit; TexNet located 0 M2+ earthquakes within 10 km over the last two years.

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 scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyOct 3, 2023
6,500
total depth, ft
6
permits on file
Oct 3, 2023
last permit issued
Oct 11, 2005
completed
26.1M
cumulative oil, bbl
21.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Oct 11, 2005
Shut in
—
Plugged
—

Surface location

28.340581, -97.181909

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 6 leases this well is completed on; they carry 762 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Lambert, M. F. O-2-1549Tom OconnorHilcorp Energy Company26315K830KJan 1993 – Jul 2026
Lambert, M. F. O-2-2115Tom Oconnor (4400)Hilcorp Energy Company451.73M2.54MJan 1993 – Jul 2026
Lambert, M. F. O-2-2590Tom Oconnor (5500 Sand)Hilcorp Energy Company39446K1.58MJan 1993 – Jul 2026
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 757,393 · prior 12 640,719(+18%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 120,695 · prior 12 90,496(+33%)

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
894270-99RecompletionHilcorp Energy CompanyOct 3, 2023Oct 3, 2023Oct 3, 20236,215
806516-99RecompletionHilcorp Energy CompanyMay 13, 2015May 19, 2015May 12, 20156,215
684147-99RecompletionHilcorp Energy CompanyAug 14, 2009Aug 20, 2009Jan 6, 20106,215
620458-99RecompletionHilcorp Energy CompanyJun 5, 2006Jun 7, 2006Jul 7, 20066,215
615250-99RecompletionHilcorp Energy CompanyMar 3, 2006Mar 6, 2006Feb 17, 20066,215
606248-99DrillHilcorp Energy CompanySep 13, 2005Sep 13, 2005Sep 17, 20056,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-1549————
—— O-2-2115————
—— O-2-2590————
—— O-2-2880————
—— O-2-5280————
—— O-2-8906————

Formation tops

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

FormationMD ftSubsea
LagartoLARGARTO2,750-2,697
Oakville3,300-3,247
Catahoula3,646-3,593
CatahoulaCATAHOULA (MIOCENE)4,100-4,047
AnahuacANAHUAC (MIOCENE)4,365-4,312
Frio4,368-4,315
FrioFRIO-GRETA (OLIGOCENE)4,785-4,732
FrioMIDDLE FRIO (SINTON)5,400-5,347
FrioLOWER FRIO (OLIGOCENE)6,215-6,162
JacksonJACKSON/YEGUA——
Lower Fril (Oligocene)——
FrioLOWER FRIO——

Perforations

Perforated and open-hole intervals.

FromToType
4,3644,384Perforated
4,3704,380Perforated
5,1625,165Perforated
5,5225,525Perforated
5,6045,611Perforated
5,7795,784Perforated
5,8725,876Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,37113.5700 S
5.56,2058.75995 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
00Dec 19, 2023Nov 8, 2023—
00Aug 20, 2020Jul 1, 2020—
00Apr 12, 2019Apr 10, 2019—
00Jun 15, 2015May 22, 2015—
00Jun 18, 2010Feb 17, 2010Yes
00Apr 9, 2010——
00Apr 4, 2007Aug 9, 2006Yes
00Dec 8, 2006——
00Sep 20, 2006Mar 9, 2006Yes
00Jun 5, 2006Nov 3, 2005Yes
00May 10, 2006——
00Feb 17, 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 →

M. F. Lambert42-391-01401

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

Catahoula3,636-3,586
Frio4,370-4,320
Jackson—

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

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

Catahoula3,635-3,577
Frio4,360-4,302
44004,360-4,302
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)fld Unit42-391-01380

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

Catahoula3,631-3,581
Frio4,363-4,313
NO Change—
Jackson—

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

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

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

16 TOPS · FIRST 8

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

0.5 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.42-391-33298

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

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

Lambert, M.F.42-391-33297

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

Catahoula3,300-3,250
Jackson—
Frio—

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

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
1.43M
bbl, all reported
Sep 2024
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000118021H-1 InjectionActive10,0002,7955,590–5,760

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 128,103(-100%)

010K20K30K20232024

TexNet catalog via USGS

Seismicity near this well

0
M2+ events within 10 km, last 2 years
—
largest

A proximity count, not an attribution. How to read it →

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/39132700, documented in the API reference.