WELL · 42-391-01432 · DISTRICT 2

M. F. Lambert #55

N

Refugio County  · Vertical

M. F. Lambert #55 (API 42-391-01432) 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 2001 and 2008, permitted to 5,915 ft.

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

Its 4 leases have reported 23.4M barrels of oil and 16.6M mcf of gas since January 1993, last reporting in July 2026. The leases carry 641 wells, so these are lease totals, not this well alone.

Operator of record

Hilcorp Energy Company

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
Mar 27, 2026
Permits on file
3,454
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulenone
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHilcorp Energy CompanyOct 23, 2008
5,915
total depth, ft
4
permits on file
Oct 23, 2008
last permit issued
—
completed
23.4M
cumulative oil, bbl
16.6M
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

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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 641 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
M. F. Lambert O-2-9323Tom Oconnor (5300, East)Hilcorp Energy Company48.24K10.8KMay 2009 – Jul 2026
Lambert, M. F. O-2-8638Tom Oconnor (5900 Sand)Hilcorp Energy Company367.8K132KJun 2001 – Dec 2011

Oil, barrels lease total

Last 12 months 675,505 · prior 12 527,830(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,546 · prior 12 83,964(+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
673407-98RecompletionHilcorp Energy CompanyMay 8, 2009Oct 23, 2008May 11, 20095,915
673407-99RecompletionHilcorp Energy CompanyOct 17, 2008Oct 23, 2008—5,915
551476-99RecompletionHilcorp Energy CompanySep 23, 2004Sep 27, 2004—5,915
509710-99RecompletionHilcorp Energy CompanyJun 1, 2001Jun 7, 2001—5,915

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-2-2880————
—— O-2-5280————
—— O-2-8638————
—— O-2-9323————

Formation tops

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

FormationMD ftSubsea
LagartoLARGARTO2,750-2,700
Oakville3,300-3,250
CatahoulaCATAHOULA (MIOCENE)4,100-4,050
AnahuacANAHUAC (MIOCENE)4,365-4,315
FrioFRIO-GRETA (OLIG)4,785-4,735
FrioMIDDLE FRIO (SINTON)5,400-5,350
Lower Fio (Olig)——
FrioLOWER FRIO (OLIG)——

Perforations

Perforated and open-hole intervals.

FromToType
5,2785,286Perforated
5,7905,800Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,225—528 S
75,904—528 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
00Oct 14, 2009May 28, 2009Yes
00Aug 19, 2009——
00Jul 14, 2005Oct 18, 2004Yes
00Oct 28, 2004——
00Jul 25, 2001——
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.

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/39101432, documented in the API reference.