WELL · 42-227-34864 · DISTRICT 8
Guitar Costilla 5 #1R
Howard County · Big Spring W. (Penn) field · Vertical
Guitar Costilla 5 #1R (API 42-227-34864) is a plugged well in Howard County, plugged October 9, 1995, last operated by Fasken Barbara.
The RRC has issued 2 drilling permits between 1994 and 2008, permitted to 10,500 ft.
It was permitted by Cobra Oil & Gas Corporation and has since transferred to Fasken Barbara on the wellbore schedule.
Completion filings report 9 formation tops, including Clear Fork, B Clearfork, B/Clearfork, Spraberry.
Its 3 leases have reported 33K barrels of oil and 53.4K mcf of gas since November 1994, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Cobra Oil & Gas Corporation; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Feb 9, 1996 · 87 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Fasken Barbara |
| Production reports | Pioneer Natural Res. USA, Inc.through Jan 2025 |
| Latest permit | Cobra Oil & Gas CorporationJan 7, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,500
- total depth, ft
- 2
- permits on file
- Jan 7, 2008
- last permit issued
- Nov 5, 1994
- completed
- 33K
- cumulative oil, bbl
- 53.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1994 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 5, 1994
- Shut in
- —
- Plugged
- Oct 9, 1995
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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Guitar Costilla 5 O-10-39373 | Spraberry (Trend Area) | Pioneer Natural Res. USA, Inc. | 1 | 16.5K | 30.8K | May 2008 – Jul 2026 |
| Guitar Costilla 5 O-10-34323 | Big Spring, W. (Penn) | Fasken, Barbara | 1 | 16.5K | 22.6K | Nov 1994 – Dec 1995 |
| Guitar Costilla 5 O-10-34318 | Wildcat | Fasken, Barbara | 1 | 0 | 0 | Nov 1994 – Dec 1994 |
Gas, mcf lease total
Last 12 months 0 · prior 12 232(-100%)
Oil, barrels lease total
Last 12 months 0 · prior 12 14(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Fasken, BarbaraNov 1994 → Jul 1995
- 2Cobra Oil & Gas CorporationMay 2008 → Jan 2017
- 3DE Operating LLCFeb 2017 → Apr 2017
- 4Parsley Energy Operations, LLCMay 2017 → Jan 2021
- 5Pioneer Natural Res. USA, Inc.Feb 2021 → Jan 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 652128-99 | Reenter | Cobra Oil & Gas Corporation | Dec 27, 2007 | Jan 7, 2008 | Feb 11, 2008 | 9,400 |
| 428255-99 | Drill | Fasken, Barbara | Sep 21, 1994 | Sep 22, 1994 | Sep 26, 1994 | 10,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-34318 | — | — | — | — |
| — | — O-10-34323 | — | — | — | — |
| — | — O-10-39373 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,510 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,414 | 9,273 | Perforated |
| 9,110 | 9,157 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 322 | 17.5 | 325 S |
| 9.625 | 3,433 | 12.25 | 950 S |
| 5.5 | 9,340 | 8.75 | 530 S |
| 5.5 | 10,104 | 8.75 | 550 S |
| 5.5 | — | 8.75 | 530 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 18, 2021 | Mar 16, 2021 | — |
| 00 | Aug 17, 2009 | Oct 6, 2008 | — |
| 00 | Jul 8, 2009 | — | — |
| 00 | Jan 26, 1995 | Nov 14, 1994 | Yes |
| 00 | Dec 5, 1994 | — | — |
| 00 | Nov 30, 1994 | — | — |
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 42-227-34864 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-34864 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
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/22734864, documented in the API reference.