TEXAS · WELLS · WEBB COUNTY · API 42-479-33159 · DISTRICT 04

Vaquillas Ranch A-1 #15

On schedule

Webb County · Vaquillas Ranch (Lobo Cons.) field · Producing  · Vertical

Vaquillas Ranch A-1 #15 (API 42-479-33159) is a well in Webb County operated by Hilcorp Energy Company, completed August 14, 1992 and listed as producing on the RRC schedule.

The RRC has issued 2 drilling permits between 1981 and 1992, permitted to 11,300 ft.

It was permitted by Conoco Inc. and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 6 formation tops, including 1st Unconformity, Walker Stray, Lobo 1, Lobo 3.

Its 2 leases have reported 18.8K barrels of oil and 839K mcf of gas since the record begins in January 1993, last reporting volume in August 2026.

Operator of record

Hilcorp Energy Company

Permitted by Conoco Inc.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Mar 27, 2026
Permits on file
3,458
Phone
(713) 209-2400

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Aug 2026
Latest permitConoco Inc.Aug 18, 1992

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,300
total depth, ft
2
permits on file
Aug 18, 1992
last permit issued
Aug 14, 1992
completed
18.8K
cumulative oil, bbl
839K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 14, 1992
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active (A)

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.

Wells nearby

Every well with a location on file around this well, in any state, nearest first.

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Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Vaquillas Ranch "A-1" G-4-142042Vaquillas Ranch (Lobo Cons.)Hilcorp Energy Company118.8K839Kby Jan 1993 – Aug 2026
— G-4-99798——000—

Gas, mcf lease total

Last 12 months 716 · prior 12 854(-16%)

0100200300202420252026

Wells named Vaquillas Ranch A-1

Hilcorp Energy Company's other wells filed under this lease name in Webb County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.

Loading the lease's wells

Chain of custody

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

  1. 1Conoco Inc.Jan 1993 → Dec 2002
  2. 2Conocophillips CompanyJan 2003 → Dec 2015
  3. 3Hilcorp Energy CompanyJan 2016 → Aug 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
401773-99RecompletionConoco Inc.Jul 29, 1992Aug 18, 1992Jun 29, 199211,300
136851-99DrillConoco Inc.Oct 16, 1981Oct 16, 1981Nov 10, 198111,300

Completions

CompletedLeaseFieldOperatorStatusDepth
Aug 14, 1992Vaquillas Ranch A-1 G-4-142042Vaquillas Ranch (Lobo Cons.)Hilcorp Energy CompanyProducing11,300
Apr 3, 1982Vaquillas Ranch-A1 G-4-99798Gato Creek SE (Lobo 1)Conoco Inc.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 620 ft elevation.Download CSV →

FormationMD ftSubsea
1ST Unconformity9,660-9,040
Walker Stray10,090-9,470
Lobo 110,242-9,622
Lobo 310,450-9,830
Lobo 610,867-10,247
Will's Point11,980-11,360

Perforations

Perforated and open-hole intervals.

FromToType
10,24810,266Perforated
10,86711,019Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,01817.5900 S
9.6258,64312.5750 S
2.510,723——
5.511,3007.52,500 S
5.511,3008.52,500 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Jan 20, 1993Nov 20, 1992—
00Oct 30, 1992Sep 16, 1992—
00Oct 12, 1992Jul 29, 1992Yes
00Aug 26, 1992——
00Jan 12, 1984Apr 30, 1982—

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

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.

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