WELL · 42-391-00727 · DISTRICT 2

Tom Oconnor (5800 SD) Fld. Unit #Q306 G

N

Refugio County  · Vertical

Tom Oconnor (5800 SD) Fld. Unit #Q306 G (API 42-391-00727) 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 between 1989 and 2020, permitted to 5,985 ft.

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

Its 3 leases have reported 24.4M barrels of oil and 16.6M mcf of gas since January 1993, last reporting in July 2026. The leases carry 638 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 CompanyAug 25, 2020
5,985
total depth, ft
3
permits on file
Aug 25, 2020
last permit issued
—
completed
24.4M
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

28.393131, -97.134002

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 638 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Heard, Fannie, V. W., Mrs. O-2-2874Tom Oconnor (5900 Sand)Hilcorp Energy Company431.63M1.67MJan 1993 – Jul 2026
Tom Oconnor (5800 SD) Fld. Unit O-2-5280Tom Oconnor (5800)Hilcorp Energy Company59422.8M14.9MJan 1993 – Jul 2026
Heard, Fannie G-2-4445Tom Oconnor (5100, East)Quintana Pet. Corp.100Jan 1993 – Apr 1994

Oil, barrels lease total

Last 12 months 673,200 · prior 12 524,408(+28%)

050K100K150K202420252026

Gas, mcf lease total

Last 12 months 117,526 · prior 12 83,712(+40%)

020K40K60K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Quintana Pet. Corp.Jan 1993 → Nov 2000
  2. 2Hilcorp Energy CompanyDec 2000 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
864763-99RecompletionHilcorp Energy CompanyAug 18, 2020Aug 25, 2020Sep 15, 20205,985
514074-99RecompletionHilcorp Energy CompanyOct 1, 2001Oct 4, 2001—5,985
358735-99RecompletionQuintana Pet. Corp.Apr 28, 1989May 1, 1989Mar 26, 19905,985

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-4445————
—— O-2-2874————
—— O-2-2874————
—— O-2-5280————

Formation tops

As filed on W-2/G-1. Subsea from 55 ft elevation.Download CSV →

FormationMD ftSubsea
LagartoLARGARTO1,500-1,445
Oakville2,750-2,695
CatahoulaCATAHOULA (MIOCENE)3,300-3,245
Catahoula3,568-3,513
AnahuacANAHUAC (MIOCENE)4,100-4,045
AnahuacANAHUAC (MIOCENE)4,150-4,095
Frio4,318-4,263
FrioFRIO-GRETA (OLIGOCENE)4,365-4,310
FrioMIDDLE FRIO (SINTON)5,000-4,945
FrioLOWER FRIO (OLIGOCENE)5,880-5,825
JacksonJACKSON/YEGUA——

Perforations

Perforated and open-hole intervals.

FromToType
5,0355,047Perforated
5,2375,245Perforated
5,7025,714Perforated
5,8365,842Perforated
5,8485,852Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.751,18514.75350 S
10.751,22014.75350 S
75,9679.875672 S
75,9689.875672 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
00Nov 2, 2023Jul 26, 2023—
00Jan 6, 2023Oct 27, 2022—
00Nov 24, 2020Nov 10, 2020—
00Oct 27, 2020Oct 21, 2020—
00Jun 13, 1994May 24, 1994—
00Jun 8, 1994Nov 25, 1975—
00Jan 12, 1984Nov 25, 1975—
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 Oconnor (5800 SD) Fld. Unit42-391-32675

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

Lagarto2,750-2,695
Oakville3,300-3,245
Catahoula3,575-3,520
Frio4,319-4,264
Anahuac4,365-4,310
Frio4,785-4,730
Frio5,400-5,345
5800 Frio5,740-5,685

10 TOPS · FIRST 8

O'Connor, Tom (5600 Ft. Sd.)unit42-391-31890

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

Lagarto1,500-1,446
Oakville2,750-2,696
Catahoula3,300-3,246
Catahoula3,560-3,506
Anahuac4,100-4,046
Frio4,310-4,256
Frio4,365-4,311
Frio5,000-4,946

11 TOPS · FIRST 8

Heard, Fannie V. W., Mrs.42-391-33203

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

Catahoula3,578-3,529
Frio4,321-4,272
Jackson—

Heard, Mrs Fannie V.W.42-391-00563

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

Lagarto1,500-1,441
Oakville2,750-2,691
Catahoula3,300-3,241

Tom O'Connor (5800 SD) Fld. Unit42-391-00557

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

Lagarto1,500-1,445
Oakville2,750-2,695
Catahoula3,300-3,245
Catahoula3,300-3,245
Anahuac4,100-4,045
Frio4,365-4,310
Frio4,365-4,310
Frio5,000-4,945

9 TOPS · FIRST 8

Mrs. Fannie V. W. Heard42-391-00558

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

Lagarto1,500-1,447
Oakville2,750-2,697
Catahoula3,300-3,247
Anahuac4,100-4,047
Frio4,365-4,312
Frio4,365-4,312
Frio5,000-4,947
Frio5,000-4,947

10 TOPS · FIRST 8

Tom O'Connor (5800 SD) Fld. Unit42-391-00685

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

Lagarto1,500-1,445
Oakville2,750-2,695
Catahoula3,300-3,245
Catahoula3,567-3,512
Anahuac4,100-4,045
Frio4,319-4,264
Frio4,365-4,310
Frio5,000-4,945

10 TOPS · FIRST 8

Mrs. Fannie V. W. Heard42-391-00696

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

Lagarto1,500-1,445
Oakville2,750-2,695
Catahoula3,300-3,245
Catahoula3,583-3,528
Anahuac4,100-4,045
Frio4,316-4,261
Frio4,365-4,310
Top of 45004,387-4,332

11 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/39100727, documented in the API reference.