WELL · 42-391-01401 · DISTRICT 2

M. F. Lambert #123

N

Refugio County  · Vertical

M. F. Lambert #123 (API 42-391-01401) is a disposal or injection well in Refugio County operated by Hilcorp Energy Company under an active UIC permit.

The RRC has issued one drilling permit, issued January 11, 2018, permitted to 5,865 ft.

Completion filings report 3 formation tops, including Catahoula, Frio, Jackson.

Its 2 leases have reported 23.2M barrels of oil and 16.5M mcf of gas since January 1993, last reporting in July 2026. The leases carry 633 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 · 3,453 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 11, 2018
5,865
total depth, ft
1
permits on file
Jan 11, 2018
last permit issued
—
completed
23.2M
cumulative oil, bbl
16.5M
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

28.341568, -97.182716

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 2 leases this well is completed on; they carry 633 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
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

Oil, barrels lease total

Last 12 months 676,484 · prior 12 529,136(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,561 · prior 12 84,080(+40%)

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
834659-99RecompletionHilcorp Energy CompanyJan 2, 2018Jan 11, 2018—5,865

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-2590————
—— O-2-5280————
—— O-2-5280————

Formation tops

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

FormationMD ftSubsea
Catahoula3,636-3,586
Frio4,370-4,320
JacksonJACKSON/YEGUA——

Perforations

Perforated and open-hole intervals.

FromToType
5,7695,777Perforated
5,7795,785Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,00115604 S
75,8659.875732 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
00Feb 8, 2019Jan 21, 2019—
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. Unit42-391-32700

0.1 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

Tom O'Connor (5800 Sd)fld Unit42-391-01380

0.3 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. Unit42-391-01396

0.3 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 Unit42-391-32723

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
Catahoula3,620-3,568
Cathoula3,620-3,568
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

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

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

Lambert, M.F.42-391-33297

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

Catahoula3,300-3,250
Jackson—
Frio—

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

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

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

13 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
136K
bbl, all reported
Sep 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000116181H-1 InjectionActive10,0002,8755,750–5,810
000116182H-1 InjectionNot activated10,0002,7955,600–5,630

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

Last 12 months 0 · prior 12 25(-100%)

010203020242025

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/39101401, documented in the API reference.