TEXAS · WELLS · ZAPATA COUNTY · API 42-505-34505 · DISTRICT 04

Asche #66

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

Asche #66 (API 42-505-34505) is a well in Zapata County operated by Hilcorp Energy Company, completed May 5, 2003 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended twice), issued March 6, 2002, permitted to 13,014 ft.

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

Completion filings report 6 formation tops, including Perdido Unconformity, Top Perdido A, Top Perdido B, Lobo Unconformity.

Its 2 leases have reported 3.74K barrels of oil and 2.91M mcf of gas since March 2003, 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

Watch this operator Watch Zapata County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Hilcorp Energy Company
Production reports	Hilcorp Energy Companythrough Apr 2026
Latest permit	Houston Exploration Company, TheMar 6, 2002

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

13,014: total depth, ft
3: permits on file
Mar 6, 2002: last permit issued
May 5, 2003: completed
3.74K: cumulative oil, bbl
2.91M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Mar 2003 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: May 5, 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.

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 →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Asche G-4-194490	Haynes (Middle Wilcox Cons.)	Hilcorp Energy Company	1	3.74K	2.91M	Mar 2003 – Apr 2026
Asche G-4-194261	Munoz (Lobo)	Hilcorp Energy Company	1	0	0	Mar 2003 – —

Gas, mcf lease total

Last 12 months 10,162 · prior 12 13,891(-27%)

Chain of custody

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

1Houston Exploration Company, TheMar 2003 → Jun 2007
2Forest Oil CorporationJul 2007 → Dec 2012
3Hilcorp Energy CompanyJan 2013 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
518056-97	Drill	Houston Exploration Company, The	Feb 24, 2003	Mar 6, 2002	Feb 5, 2003	14,000
518056-98	Drill	Houston Exploration Company, The	Jan 21, 2003	Mar 6, 2002	—	14,000
518056-99	Drill	Houston Exploration Company, The	Mar 5, 2002	Mar 6, 2002	—	11,800

Completions

Completed	Lease	Field	Operator	Status	Depth
May 5, 2003	Asche G-4-194490	Haynes (Middle Wilcox Cons.)	Hilcorp Energy Company	Producing	13,014
Mar 11, 2003	Asche G-4-194261	Munoz (Lobo)	Hilcorp Energy Company	SWR-10-Well · shut in Apr 1, 2003	13,014

Formation tops

As filed on W-2/G-1. Subsea from 467 ft elevation.Download CSV →

Formation	MD ft	Subsea
Perdido Unconformity	10,179	-9,712
Top Perdido A	10,340	-9,873
Top Perdido B	11,005	-10,538
Lobo Unconformity	11,957	-11,490
Top Lobo 3	12,322	-11,855
Top Lobo 6	12,563	-12,096

Perforations

Perforated and open-hole intervals.

From	To	Type
10,402	10,404	Perforated
10,402	11,188	Perforated
11,019	11,024	Perforated
11,064	11,072	Perforated
11,078	11,092	Perforated
11,112	11,118	Perforated
11,181	11,188	Perforated
12,329	12,332	Perforated
12,329	12,791	Perforated
12,592	12,596	Perforated
12,600	12,606	Perforated
12,652	12,654	Perforated
12,786	12,791	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
16	60	17.75	85 S
9.625	755	12.25	350 S
7	9,012	8.75	400 S
4.5	13,014	6.125	375 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 →

RRC record date	W-2 / G-1 date	Logs referenced
Dec 4, 2003	Nov 3, 2003	—
Dec 3, 2003	Nov 3, 2003	—
Jul 10, 2003	Jun 9, 2003	—
Jun 12, 2003	Apr 21, 2003	Yes
May 29, 2003	—	—
May 21, 2003	Apr 21, 2003	Yes
May 9, 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.

Open the RRC's log search for this well ↗

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

Wellbore filings for 42-505-34505 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-505-34505 → scanned completion filings

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

Developers: this page as JSON is GET /v1/data/wells/50534505, documented in the API reference.