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TEXAS · WELLS · ZAPATA COUNTY · API 42-505-34621 · DISTRICT 04

Yzaguirre-Leo Gas Unit #10

On schedule

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

Fields on the latest permit · any of 2
Haynes (Middle Wilcox Cons.) · Munoz (Lobo)
Not one formation; the well must be completed in one of them, and no target formation is stated. The district's wildcat field is also on the permit.

Yzaguirre-Leo Gas Unit #10 (API 42-505-34621) is a well in Zapata County operated by Hilcorp Energy Company, completed January 24, 2003 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 1, 2002, permitted to 14,000 ft.

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

Its 2 leases have reported 135 barrels of oil and 899K mcf of gas since December 2002, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

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
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SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleHilcorp Energy Company
Production reportsHilcorp Energy Companythrough Apr 2026
Latest permitHouston Exploration Company, TheNov 1, 2002

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

14,000
total depth, ft
2
permits on file
Nov 1, 2002
last permit issued
Jan 24, 2003
completed
135
cumulative oil, bbl
899K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · DEC 2002 THROUGH APR 2026

On this pageLease production2 completions

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 24, 2003
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 APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Yzaguirre-Leo Gas Unit G-4-193724Haynes (Middle Wilcox Cons.)Hilcorp Energy Company1135899KDec 2002 – Apr 2026
Yzaguirre-Leo Gas Unit G-4-193370Munoz (Lobo)Hilcorp Energy Company100Dec 2002 – —

Gas, mcf lease total

Last 12 months 2,474 · prior 12 2,913(-15%)

05001K1.5K202420252026

Wells named Yzaguirre-Leo Gas Unit

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.

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Chain of custody

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

  1. 1Houston Exploration Company, TheDec 2002 → Jun 2007
  2. 2Forest Oil CorporationJul 2007 → Dec 2012
  3. 3Hilcorp Energy CompanyJan 2013 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
525033-98DrillHouston Exploration Company, TheJan 31, 2003Nov 1, 2002Nov 13, 200214,200
525033-99DrillHouston Exploration Company, TheOct 28, 2002Nov 1, 2002—14,200

Completions

CompletedLeaseFieldOperatorStatusDepth
Jan 24, 2003Yzaguirre-Leo Gas Unit G-4-193724Haynes (Middle Wilcox Cons.)Hilcorp Energy CompanyProducing14,000
Dec 22, 2002Yzaguirre-Leo Gas Unit G-4-193370Munoz (Lobo)Hilcorp Energy CompanySWR-10-Well · shut in Apr 1, 201214,000

Perforations

Perforated and open-hole intervals.

FromToType
10,59810,660Perforated
10,96311,317Perforated
11,29611,317Perforated
12,58812,602Perforated
12,58812,604Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
145717.7580 S
1457017.7580 S
9.62574612.25350 S
78,8908.75406 S
4.513,9736.125525 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
00Dec 18, 2003Oct 24, 2003—
00Dec 17, 2003Oct 24, 2003—
00May 5, 2003Mar 5, 2003—
00May 1, 2003Mar 5, 2003Yes
00Apr 29, 2003Mar 5, 2003Yes
00Apr 9, 2003——
00Mar 18, 2003——

Well logs

The RRC's map lists this well among those with logs online. Its monthly inventories loaded here, which start in July 2006, list none for it, so none are itemized.

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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.

The logs loaded for this well are under Well logs, with the RRC's log search for 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

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