TEXAS · WELLS · ANDREWS COUNTY · COX ESTATE "8" LEASE · API 42-003-34937 · DISTRICT 7B
Cox Estate 8 #1
Andrews County · Dempsey Creek (San Andres) field · Producing · Vertical
Cox Estate 8 #1 (API 42-003-34937) is a well in Andrews County operated by Texland Petroleum L.P., completed July 19, 1991 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits (amended once) between 1985 and 1991, permitted to 4,879 ft.
It was permitted by Sage Energy Company and has since transferred to Texland Petroleum L.P. on the wellbore schedule.
Completion filings report 2 formation tops, including Yates, San Andres.
Its lease has reported 47.4K barrels of oil and 7.07K mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sage Energy Company; 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 | Sage Energy CompanyJun 27, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,879
- total depth, ft
- 3
- permits on file
- Jun 27, 1991
- last permit issued
- Jul 19, 1991
- completed
- 47.4K
- cumulative oil, bbl
- 7.07K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 19, 1991
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cox Estate "8" O-11-66726 | Dempsey Creek (San Andres) | Texland Petroleum, L.P. | 2 | 47.4K | 7.07K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 775 · prior 12 705(+10%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sage Energy CompanyJan 1993 → Jul 2007
- 2Sheridan Production Company, LLCAug 2007 → Oct 2010
- 3Texland Petroleum, L.P.Nov 2010 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 389354-98 | Reenter | Sage Energy Company | Aug 7, 1991 | Jun 27, 1991 | Jun 26, 1991 | 7,600 |
| 389354-99 | Reenter | Sage Energy Company | Jun 26, 1991 | Jun 27, 1991 | — | 7,600 |
| 275682-99 | Drill | Rust Oil Corp. | May 17, 1985 | May 20, 1985 | Jun 27, 1985 | 7,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 19, 1991 | Cox Estate 8 O-11-66726 | Dempsey Creek (San Andres) | Texland Petroleum L.P. | Producing | 4,879 |
Formation tops
As filed on W-2/G-1. Subsea from 3,405 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 2,862 | 543 |
| San Andres | 4,310 | -905 |
| San AndresSAN ANDRES (POROSITY) | 4,500 | -1,095 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,501 | 4,608 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,666 | 12.25 | 650 S |
| 7 | 2,845 | 7.875 | 200 S |
| 4.5 | 4,810 | 6.25 | 350 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 19, 1991 | Aug 5, 1991 | Yes |
| 00 | Aug 14, 1991 | — | — |
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 42-003-34937 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-003-34937 → 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/00334937, documented in the API reference.