WELL · 42-135-36271 · DISTRICT 8
Holt O. B. Tract 1 #121
Ector County · Triple-N (Penn. Upper) field · Vertical
Holt O. B. Tract 1 #121 (API 42-135-36271) is a plugged well in Ector County, plugged April 1, 2008, last operated by Texland Petroleum L.P..
The RRC has issued 3 drilling permits (amended once) between 1990 and 1996, permitted to 9,100 ft.
It was permitted by Texaco E & P Inc. and has since transferred to Texland Petroleum L.P. on the wellbore schedule.
Completion filings report one formation top, including Pennsylvanian.
Its 3 leases have reported 2.3M barrels of oil and 932K mcf of gas since January 1993, last reporting in July 2026. The leases carry 140 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Texaco E & P Inc.; the EWA schedule now lists a different operator.
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 15, 2025
- Permits on file
- 694
- Phone
- (817) 336-2751
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texland Petroleum L.P. |
| Production reports | Texland Petroleum, L.P.through Apr 2026 |
| Latest permit | Texaco E & P Inc.Apr 11, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,100
- total depth, ft
- 4
- permits on file
- Apr 11, 1996
- last permit issued
- Sep 9, 1990
- completed
- 2.3M
- cumulative oil, bbl
- 932K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 9, 1990
- Shut in
- —
- Plugged
- Apr 1, 2008
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 140 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Holt, O. B., Tract 1 O-10-20906 | Triple-N (Penn., Upper) | Texland Petroleum, L.P. | 5 | 222K | 189K | Jan 1993 – Jul 2026 |
| Holt, O. B. O-10-23396 | Cowden, North | Texland Petroleum, L.P. | 134 | 2.08M | 705K | Jan 1993 – Jul 2026 |
| Holt, O.B. G-10-159326 | Penteam (Queen) | Chevron U. S. A. Inc. | 1 | 0 | 38.1K | May 1996 – Mar 2008 |
Oil, barrels lease total
Last 12 months 22,813 · prior 12 25,127(-9%)
Gas, mcf lease total
Last 12 months 4,744 · prior 12 6,587(-28%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → May 2002
- 2Chevron U. S. A. Inc.Jun 2002 → Jun 2016
- 3Texland Petroleum, L.P.Jul 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 446467-99 | Recompletion | Texaco E & P Inc. | Mar 29, 1996 | Apr 11, 1996 | May 8, 1996 | 9,100 |
| 383436-99 | Recompletion | Texaco Inc. | Jan 14, 1991 | Feb 18, 1991 | Mar 5, 1991 | 4,650 |
| 375152-98 | Drill | Texaco Inc. | Jul 16, 1990 | Jul 6, 1990 | Aug 1, 1990 | 9,100 |
| 375152-99 | Drill | Texaco Inc. | Jul 3, 1990 | Jul 6, 1990 | — | 9,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-159326 | — | — | — | — |
| — | — O-10-20906 | — | — | — | — |
| — | — O-10-23396 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,131 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| PennsylvanianPENN | 8,951 | -5,820 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,100 | 4,119 | Perforated |
| 4,306 | 4,550 | Perforated |
| 8,951 | 8,954 | Perforated |
| 8,982 | 8,986 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 1,720 | 14.75 | 1,150 S |
| 8.625 | 5,330 | 11 | 1,625 S |
| 5.5 | 9,100 | 7.875 | 1,050 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 27, 1996 | Jul 24, 1996 | Yes |
| 00 | Aug 12, 1996 | — | — |
| 00 | Jun 26, 1991 | May 21, 1991 | Yes |
| 00 | Jun 20, 1991 | — | — |
| 00 | Oct 31, 1990 | Sep 20, 1990 | Yes |
| 00 | Oct 8, 1990 | — | — |
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 42-135-36271 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-36271 → 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.
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/13536271, documented in the API reference.