WELL · 42-391-01388 · DISTRICT 2

Lambert, M.F. #56

N

Refugio County  · Vertical

Lambert, M.F. #56 (API 42-391-01388) is a permitted well in Refugio County filed by Hilcorp Energy Company; no completion report is on file yet.

The RRC has issued 3 drilling permits (amended once) between 2011 and 2023, permitted to 5,910 ft.

Completion filings report 5 formation tops, including Catahoula, Frio, Tom O'Connor (5200, East), Tom O'Connor (5900 Sand).

Its 3 leases have reported 2.51M barrels of oil and 4.54M mcf of gas since January 1993, last reporting in July 2026. The leases carry 103 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 CompanyJan 20, 2023
5,910
total depth, ft
4
permits on file
Jan 20, 2023
last permit issued
—
completed
2.51M
cumulative oil, bbl
4.54M
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

28.336406, -97.176991

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 103 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
Lambert, M. F. O-2-2880Tom Oconnor (5900 Sand)Hilcorp Energy Company40504K1.58MJan 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 79,579 · prior 12 111,583(-29%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 3,134 · prior 12 6,416(-51%)

05K10K202420252026

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. 2Pennzenergy Exp. & Prod., L.L.C.Mar 1999 → Mar 2000
  3. 3Devon Energy Production Co, L.P.Apr 2000 → Jul 2002
  4. 4Hilcorp Energy CompanyAug 2002 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
887347-99RecompletionHilcorp Energy CompanyJan 17, 2023Jan 20, 2023Jan 13, 20235,910
826486-99RecompletionHilcorp Energy CompanyMay 10, 2017May 26, 2017May 11, 20175,910
726903-98RecompletionHilcorp Energy CompanyFeb 14, 2012Nov 30, 2011—5,910
726903-99RecompletionHilcorp Energy CompanyOct 25, 2011Nov 30, 2011—5,910

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-2115————
—— O-2-2880————
—— O-2-8906————

Formation tops

As filed on W-2/G-1. Subsea from 51 ft elevation.Download CSV →

FormationMD ftSubsea
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
JacksonJACKSON/YEGUA——

Perforations

Perforated and open-hole intervals.

FromToType
4,3654,379Perforated
5,2205,227Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,22715528 S
75,8989.875528 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 4, 2023Sep 18, 2023—
00Apr 27, 2023Feb 21, 2023—
00Sep 29, 2017Jul 5, 2017—
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

0.1 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

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

0.2 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
NO Change—

9 TOPS · FIRST 8

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

0.4 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) 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
Anahuac4,365-4,314
Ananhuac4,365-4,314
Frio4,389-4,338
Frio4,785-4,734

12 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-01433

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

Lagarto2,750-2,700
Catahoula3,627-3,577
Oakville4,100-4,050
Anahuac4,365-4,315
Frio4,400-4,350
NO Change—
Jackson—

Lambert, M.F.42-391-33297

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

Catahoula3,300-3,250
Frio—
Jackson—

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—

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

0.6 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

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/39101388, documented in the API reference.