WELL · 42-135-33193 · DISTRICT 8
Holt O.B. Grbg #131W
Ector County · Cowden North field · Vertical
Holt O.B. Grbg #131W (API 42-135-33193) is a plugged well in Ector County, plugged August 31, 2023, last operated by Olsen Energy Inc..
The RRC has issued one drilling permit, issued July 26, 1979, permitted to 4,500 ft.
It was permitted by Sun Expl. & Prod. CO.-Midland and has since transferred to Olsen Energy Inc. on the wellbore schedule.
Completion filings report 4 formation tops, including Tansill, Yates, Queen, Grayburg.
Its lease has reported 386K barrels of oil and 57.4K mcf of gas since January 1993, last reporting in July 2026. The lease carries 97 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sun Expl. & Prod. Co.-Midland; the EWA schedule now lists a different operator.
- Based in
- Boerne, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 26, 2026
- Permits on file
- 243
- Phone
- (210) 496-2466
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Olsen Energy Inc. |
| Production reports | Olsen Energy Inc.through Apr 2026 |
| Latest permit | Sun Expl. & Prod. Co.-MidlandJul 26, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,500
- total depth, ft
- 1
- permits on file
- Jul 26, 1979
- last permit issued
- Sep 22, 1979
- completed
- 386K
- cumulative oil, bbl
- 57.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 22, 1979
- Shut in
- —
- Plugged
- Aug 31, 2023
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 97 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Holt, O.B. Grbg O-10-20398 | Cowden, North | Olsen Energy Inc. | 97 | 386K | 57.4K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,436 · prior 12 2,189(+11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Stephens, Autry C.Jan 1993 → Aug 2000
- 2Endeavor Energy Resources L.P.Sep 2000 → Nov 2023
- 3Silver Cross Energy Partners LLCDec 2023 → Dec 2024
- 4Olsen Energy Inc.Jan 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 53743-99 | Drill | Sun Expl. & Prod. Co.-Midland | Jul 26, 1979 | Jul 26, 1979 | Aug 5, 1979 | 4,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-20398 | — | — | — | — |
| — | — O-10-20398 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,124 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,334 | 4,346 | Perforated |
| 4,334 | 4,550 | Perforated |
| 4,396 | 4,550 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 234 | 12.25 | 200 S |
| 8.625 | 237 | 12.25 | 200 S |
| 2.875 | 4,249 | — | — |
| 5.5 | 4,650 | 7.875 | 900 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 | Apr 27, 2005 | Jan 13, 2005 | — |
| 00 | Feb 14, 2005 | Sep 28, 1979 | — |
| 00 | Jan 12, 1984 | Sep 28, 1979 | — |
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 42-135-33193 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-33193 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 122K
- bbl, all reported
- Nov 2004
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000011633 | H-1 Injection | Plugged Sep 12, 2023 | 500 | 1,500 | 4,334–4,550 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/13533193, documented in the API reference.