TEXAS · WELLS · ECTOR COUNTY · API 42-135-01745 · DISTRICT 7B
Holt O. B. Jr. Etal #4
Ector County · Cowden North (Deep) field · Vertical
Holt O. B. JR. Etal #4 (API 42-135-01745) is a plugged well in Ector County, plugged March 29, 2011, last operated by Texland Petroleum L.P..
The RRC has issued one drilling permit, issued September 15, 1989, permitted to 5,320 ft.
It was permitted by Chevron U. S. A. Inc. and has since transferred to Texland Petroleum L.P. on the wellbore schedule.
Completion filings report 2 formation tops, including Grayburg, Holt.
Its 2 leases have reported 397K barrels of oil and 129K mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 11 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Chevron U. S. A. 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
- 697
- 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 | Chevron U. S. A. Inc.Sep 15, 1989 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,320
- total depth, ft
- 1
- permits on file
- Sep 15, 1989
- last permit issued
- Sep 29, 1989
- completed
- 397K
- cumulative oil, bbl
- 129K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 29, 1989
- Shut in
- —
- Plugged
- Mar 29, 2011
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 2 leases this well is completed on; they carry 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Holt, O. B., Jr., Etal O-10-820 | Cowden, North (Deep) | Texland Petroleum, L.P. | 11 | 397K | 129K | Jan 1993 – Apr 2026 |
| — O-10-31818 | — | — | 0 | 0 | 0 | — |
Oil, barrels lease total
Last 12 months 17,651 · prior 12 19,159(-8%)
Gas, mcf lease total
Last 12 months 1,126 · prior 12 1,259(-11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Oil Company of CaliforniaJan 1993 → May 2000
- 2Pure Resources, L.P.Jun 2000 → Mar 2006
- 3Chevron Midcontinent, L.P.Apr 2006 → Jun 2016
- 4Texland Petroleum, L.P.Jul 2016 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 363848-99 | Recompletion | Chevron U. S. A. Inc. | Sep 12, 1989 | Sep 15, 1989 | — | 5,320 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 29, 1989 | Holt O. B. Jr. Etal O-10-820 | Cowden North (Deep) | Texland Petroleum L.P. | Plugged | — |
| Sep 29, 1989 | Holt O. B. Jr. et Al O-10-31818 | Cowden North | Chevron U. S. A. Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,102 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,200 | 5,178 | Perforated |
| 5,176 | 5,178 | Perforated |
| 5,259 | 5,320 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 269 | 12.25 | 275 S |
| 8.625 | 269 | — | 275 S |
| 2 | 5,209 | — | — |
| 4.5 | 5,259 | 7.875 | 450 S |
| 4.5 | 5,259 | — | 450 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 | Jun 13, 1991 | Feb 25, 1991 | — |
| 00 | Dec 14, 1989 | Nov 7, 1989 | Yes |
| 00 | Nov 21, 1989 | — | — |
| 00 | Jan 12, 1984 | Apr 24, 1961 | — |
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 42-135-01745 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-135-01745 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/13501745, documented in the API reference.