TEXAS · WELLS · ZAPATA COUNTY · DE LOS SANTOS GAS UNIT 1 LEASE · API 42-505-32386 · DISTRICT 04

De Los Santos Gas Unit 1 #1

Shut in

Zapata County · Haynes (Middle Wilcox Cons.) field · Producing  · Vertical

De Los Santos Gas Unit 1 #1 (API 42-505-32386) is a well in Zapata County operated by Hilcorp Energy Company, completed December 17, 1987 and listed as producing on the RRC schedule, shut in September 1, 2020.

The RRC has issued one drilling permit (amended once), issued October 23, 1986, permitted to 11,905 ft.

It was permitted by Houston Exploration Company, The and has since transferred to Hilcorp Energy Company on the wellbore schedule.

Completion filings report 2 formation tops, including Queen City, Wilcox.

Its lease has reported 126 barrels of oil and 1.31M mcf of gas since the record begins in January 1993, with no volume in the three years through April 2026.

Operator of record

Hilcorp Energy Company

Permitted by Houston Exploration Company, The; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
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 2020
Latest permitHouston Exploration Company, TheOct 23, 1986

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

11,905
total depth, ft
2
permits on file
Oct 23, 1986
last permit issued
Dec 17, 1987
completed
126
cumulative oil, bbl
1.31M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH AUG 2020

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Dec 17, 1987
Shut in
Sep 1, 2020
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 APR 2026

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

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
De Los Santos Gas Unit 1 G-4-126080Haynes (Middle Wilcox Cons.)Hilcorp Energy Company11261.31Mby Jan 1993 – Aug 2020

No volumes reported on these leases in the last three years.

Wells named De Los Santos Gas Unit 1

Hilcorp Energy Company's other wells filed under this lease name in Zapata 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. 1Transamerican Natural Gas Corp.Jan 1993 → Jun 1996
  2. 2Houston Exploration Company, TheJul 1996 → Jun 2007
  3. 3Forest Oil CorporationJul 2007 → Dec 2012
  4. 4Hilcorp Energy CompanyDec 2013 → Aug 2020

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
337732-98DrillHouston Exploration Company, TheJan 24, 2007Oct 23, 1986Nov 1, 198711,905
337732-99DrillTransamerican Natural Gas Corp.Oct 21, 1987Oct 23, 1986Nov 1, 198712,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Dec 17, 1987De Los Santos Gas Unit 1 G-4-126080Haynes (Middle Wilcox Cons.)Hilcorp Energy CompanyProducing · shut in Sep 1, 202011,905

Formation tops

As filed on W-2/G-1. Subsea from 466 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City3,900-3,434
WilcoxWILCOX (CARRIZO)6,910-6,444
WilcoxLOWER WILCOX9,110-8,644

Perforations

Perforated and open-hole intervals.

FromToType
10,68510,731Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.7575214.75530 S
7.6259,1009.875365 S
511,9036.75280 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
00Feb 18, 1988Jan 7, 1988Yes
00Feb 17, 1988Jan 12, 1988—
00Feb 3, 1988——

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.

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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

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