WELL · 42-307-31066 · DISTRICT 7
Holubec West #4
McCulloch County · Needle Creek (Strawn) field · Injection · Vertical
Holubec West #4 (API 42-307-31066) is a well in Mcculloch County operated by Felderhoff Production Company, completed March 4, 1998 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued February 17, 1998, permitted to 1,500 ft.
It was permitted by Cooper Oil & Gas, Inc. and has since transferred to Felderhoff Production Company on the wellbore schedule.
Completion filings report 3 formation tops, including Home Crk. Lm., Palo Pinto, Needle Crk. Sd..
Its lease has reported 66.1K barrels of oil since October 1995, last reporting in July 2026. The lease carries 5 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 27.4K barrels injected in the 12 months reported through April 2025.
Operator of record
Permitted by Cooper Oil & Gas, Inc.; the EWA schedule now lists a different operator.
Muenster, TX · P-5 Y, filed Jan 4, 2026 · 468 permits on file · (940) 768-9791
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Felderhoff Production Company |
| Production reports | Felderhoff Production Companythrough Apr 2026 |
| Latest permit | Cooper Oil & Gas, Inc.Feb 17, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,500
- total depth, ft
- 1
- permits on file
- Feb 17, 1998
- last permit issued
- Mar 4, 1998
- completed
- 66.1K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1995 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 4, 1998
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Holubec West O-9-14125 | Needle Creek (Strawn) | Felderhoff Production Company | 5 | 66.1K | 0 | Oct 1995 – Jul 2026 |
Oil, barrels lease total
Last 12 months 980 · prior 12 1,712(-43%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Cooper Oil & Gas, Inc.Nov 1995 → May 2010
- 2Cooper Oil & Gas, LLCJun 2010 → Mar 2023
- 3Felderhoff Production CompanyApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 473411-99 | Drill | Cooper Oil & Gas, Inc. | Feb 17, 1998 | Feb 17, 1998 | Feb 15, 1998 | 1,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-14125 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,891 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Home Crk. Lm. | 562 | 1,329 |
| Palo PintoPALO PINTO LM. | 1,186 | 705 |
| Needle Crk. Sd. | 1,242 | 649 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,266 | 1,276 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 157 | 12.25 | 100 S |
| 4.5 | 1,305 | 7.875 | 200 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 | Aug 6, 1998 | Mar 9, 1998 | — |
| 00 | Jul 28, 1998 | — | — |
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 42-307-31066 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-307-31066 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 27.4K
- bbl, last 12 reported months
- 609K
- bbl, all reported
- Apr 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000087696 | H-1 Injection | Active | 500 | 625 | 1,266–1,276 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 27,375 · prior 12 29,200(-6%)
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/30731066, documented in the API reference.