WELL · 42-391-01380 · DISTRICT 2

Lambert M. F. #39

N

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

Lambert M. F. #39 (API 42-391-01380) 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 1981 and 2019, permitted to 5,904 ft.

Completion filings report 4 formation tops, including Catahoula, Frio, Jackson, No Change.

Its 4 leases have reported 23.8M barrels of oil and 17.7M mcf of gas since January 1993, last reporting in July 2026. The leases carry 677 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 CompanyNov 25, 2019
5,904
total depth, ft
7
permits on file
Nov 25, 2019
last permit issued
—
completed
23.8M
cumulative oil, bbl
17.7M
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

28.338780, -97.183150

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 677 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-2-2590Tom Oconnor (5500 Sand)Hilcorp Energy Company39446K1.58MJan 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 681,378 · prior 12 541,106(+26%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,609 · prior 12 84,694(+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
859388-99RecompletionHilcorp Energy CompanyNov 22, 2019Nov 25, 2019Dec 19, 20195,904
826448-99RecompletionHilcorp Energy CompanyMay 9, 2017May 25, 2017May 8, 20175,904
802522-98RecompletionHilcorp Energy CompanyJan 23, 2015Jan 13, 2015Jan 14, 20155,904
802522-99RecompletionHilcorp Energy CompanyJan 8, 2015Jan 13, 2015—5,904
646723-99RecompletionHilcorp Energy CompanySep 25, 2007Sep 28, 2007Sep 18, 20075,904
611175-99RecompletionHilcorp Energy CompanyDec 16, 2005Dec 16, 2005Nov 8, 20055,904
121136-99RecompletionPennzoil Producing Co.Jun 8, 1981Jun 8, 1981—5,904

Completions

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

Formation tops

As filed on W-2/G-1. Subsea from 50 ft elevation.Download CSV →

FormationMD ftSubsea
Catahoula3,631-3,581
Frio4,363-4,313
JacksonJACKSON/YEGUA——
NO Change——

Perforations

Perforated and open-hole intervals.

FromToType
5,1605,166Perforated
5,5335,536Perforated
5,5955,606Perforated
5,5975,606Perforated
5,6845,690Perforated
5,7805,788Perforated
5,873—Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,21515500 S
10.751,215—500 S
2.3755,518——
75,8949.875500 S
75,894—500 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 16, 2020Jan 2, 2020—
00Jul 10, 2017Jun 22, 2017—
00Aug 24, 2015Jan 30, 2015—
00Mar 5, 2008Oct 11, 2007Yes
00Jan 25, 2008——
00Jun 5, 2006Jan 9, 2006Yes
00Feb 21, 2006——
00Jan 12, 1984Nov 6, 1981—
00Jan 12, 1984Jul 17, 1972—

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 Unit42-391-32723

0.0 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. Unit42-391-01396

0.1 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) Fld. Unit42-391-32696

0.2 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

Tom O'Connor (5800 SD) Fld. Unit42-391-32700

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

Lagarto2,750-2,697
Oakville3,300-3,247
Catahoula3,646-3,593
Catahoula4,100-4,047
Anahuac4,365-4,312
Frio4,368-4,315
Frio4,785-4,732
Frio5,400-5,347

12 TOPS · FIRST 8

M. F. Lambert42-391-01401

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

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

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

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

Lagarto1,500-1,437
Oakville2,750-2,687
Catahoula3,300-3,237
Catahoula3,300-3,237
Catahoula3,300-3,237
Anahuac4,100-4,037
Anahuac4,100-4,037
Frio4,365-4,302

16 TOPS · FIRST 8

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

0.6 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
Greta4,362-4,314
Frio4,362-4,314
Frio4,365-4,317

11 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/39101380, documented in the API reference.