TEXAS · WELLS · WEBB COUNTY · FROST NATIONAL BANK LEASE · API 42-479-35314 · DISTRICT 04
Frost National Bank #43
Webb County · Villegas (Middle Wilcox 7950) field · Producing · Vertical
Frost National Bank #43 (API 42-479-35314) is a well in Webb County operated by Hilcorp Energy Company, completed November 27, 1991 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 4, 1991, permitted to 8,500 ft.
It was permitted by Transamerican Natural Gas Corp. and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 2 formation tops, including T/Wilcox, B/Wilcox.
Its lease has reported 5.44K barrels of oil and 1.37M mcf of gas since the record begins in January 1993, last reporting volume in August 2026.
Operator of record
Permitted by Transamerican Natural Gas Corp.; 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 schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough Aug 2026 |
| Latest permit | Transamerican Natural Gas Corp.Oct 4, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 1
- permits on file
- Oct 4, 1991
- last permit issued
- Nov 27, 1991
- completed
- 5.44K
- cumulative oil, bbl
- 1.37M
- 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
- Nov 27, 1991
- 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.
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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Frost National Bank G-4-140077 | Villegas (Middle Wilcox 7950) | Hilcorp Energy Company | 1 | 5.44K | 1.37M | by Jan 1993 – Aug 2026 |
Gas, mcf lease total
Last 12 months 8,118 · prior 12 11,566(-30%)
Wells named Frost National Bank
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 wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Transamerican Natural Gas Corp.Jan 1993 → Jul 1993
- 2Transtexas Gas CorporationAug 1993 → May 1997
- 3Conoco Inc.Jun 1997 → Dec 2002
- 4Conocophillips CompanyJan 2003 → Dec 2015
- 5Hilcorp Energy CompanyJan 2016 → Aug 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 392427-99 | Drill | Transamerican Natural Gas Corp. | Oct 2, 1991 | Oct 4, 1991 | Oct 18, 1991 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 27, 1991 | Frost National Bank G-4-140077 | Villegas (Middle Wilcox 7950) | Hilcorp Energy Company | Producing | 8,500 |
Formation tops
As filed on W-2/G-1. Subsea from 533 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Wilcox | 5,245 | -4,712 |
| B/Wilcox | 8,170 | -7,637 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,686 | 8,098 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 740 | 14.75 | 530 S |
| 7 | 5,098 | 8.75 | 265 S |
| 2.875 | 8,487 | 6.25 | 660 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 →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 9, 1992 | Dec 16, 1991 | Yes |
| 00 | Dec 27, 1991 | — | — |
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 42-479-35314 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-35314 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/47935314, documented in the API reference.