TEXAS · WELLS · WEBB COUNTY · FASKEN LEASE · API 42-479-39141 · DISTRICT 04
Fasken #4
Webb County · Las Tiendas (Olmos) field · Producing · Vertical
Fasken #4 (API 42-479-39141) is a well in Webb County operated by Crescent Energy Operating LLC, completed September 2, 2005 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued June 1, 2005, permitted to 6,900 ft.
It was permitted by Escondido Resources GP, LLC and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Olmos.
Its lease has reported 136K mcf of gas since September 2005, last reporting volume in April 2026.
Operator of record
Permitted by Escondido Resources GP, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 28, 2025
- Permits on file
- 54
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Apr 2026 |
| Latest permit | Escondido Resources GP, LLCJun 1, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,900
- total depth, ft
- 1
- permits on file
- Jun 1, 2005
- last permit issued
- Sep 2, 2005
- completed
- 0
- cumulative oil, bbl
- 136K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2005 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 2, 2005
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 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 |
|---|---|---|---|---|---|---|
| Fasken G-4-214771 | Las Tiendas (Olmos) | Crescent Energy Operating, LLC | 1 | 0 | 136K | Sep 2005 – Apr 2026 |
Gas, mcf lease total
Last 12 months 3,696 · prior 12 3,642(+1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Escondido Resources GP, LLCSep 2005 → Sep 2007
- 2Swift Energy Operating, LLCOct 2007 → Jun 2017
- 3Silverbow Resources Oper, LLCJul 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 601437-99 | Drill | Escondido Resources GP, LLC | May 31, 2005 | Jun 1, 2005 | Aug 7, 2005 | 7,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 2, 2005 | Fasken G-4-214771 | Las Tiendas (Olmos) | Crescent Energy Operating LLC | Producing | 6,900 |
Formation tops
As filed on W-2/G-1. Subsea from 677 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 6,088 | -5,411 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,106 | 6,120 | Perforated |
| 6,354 | 6,514 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,778 | 12.25 | 690 S |
| 4.5 | 6,883 | 7.875 | 1,460 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 | Jul 18, 2006 | Dec 6, 2005 | Yes |
| 00 | Mar 28, 2006 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 27, 2006. Density, Gamma ray, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Combination: Resistivity/Neutron Density PorosityARRAY INDUCTION-GAMMA RAY COMPENSATED NEUTRONSpans Olmos | TIFF | 1,760 to 6,900 | Oct 27, 2006run Aug 25, 2005 | — |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-479-39141 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-39141 → 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/47939141, documented in the API reference.