TEXAS · WELLS · REEVES COUNTY · CALDWELL ESTATE "4" LEASE · API 42-389-31346 · DISTRICT 7B
Caldwell Estate 4 #1
Reeves County · San Martine SW. (Wolfcamp) field · Producing · Vertical
Caldwell Estate 4 #1 (API 42-389-31346) is a permitted well in Reeves County filed by Conoco Inc.; no completion report is on file yet.
The RRC has issued one drilling permit, issued December 21, 1982, permitted to 14,425 ft.
It was permitted by Conoco Inc. and has since transferred to R2q Operating LLC on the wellbore schedule.
Its lease has reported 50.8K barrels of oil and 5.01M mcf of gas since January 1993, last reporting volume in March 2026.
Operator of record
Permitted by Conoco Inc.; the EWA schedule now lists a different operator.
- Based in
- Iowa Park, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Sep 12, 2025
- Permits on file
- 38
- Phone
- (940) 228-1500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | R2Q Operating LLC |
| Production reports | Extex Operating Companythrough Mar 2026 |
| Latest permit | Conoco Inc.Dec 21, 1982 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,425
- total depth, ft
- 1
- permits on file
- Dec 21, 1982
- last permit issued
- —
- completed
- 50.8K
- cumulative oil, bbl
- 5.01M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Caldwell Estate "4" G-10-105773 | San Martine, SW. (Wolfcamp) | Extex Operating Company | 1 | 50.8K | 5.01M | Jan 1993 – Mar 2026 |
Gas, mcf lease total
Last 12 months 24,870 · prior 12 7,783(+220%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Conoco Inc.Jan 1993 → May 1994
- 2Samson Resources CompanyJun 1994 → Mar 1995
- 3Samson Hydrocarbons CompanyApr 1995 → Jul 1996
- 4Samson Lone Star LPAug 1996 → Jun 2007
- 5Samson Lone Star, LLCJul 2007 → Dec 2010
- 6Three Rivers Operating Co LLCJan 2011 → Jul 2012
- 7COG Operating LLCAug 2012 → Dec 2012
- 8Legacy Reserves Operating LPJan 2013 → Jan 2021
- 9Extex Operating CompanyFeb 2021 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 180986-99 | Drill | Conoco Inc. | Dec 21, 1982 | Dec 21, 1982 | Jan 4, 1982 | 14,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | Caldwell Estate 4 G-10-105773 | San Martine SW. (Wolfcamp) | R2Q Operating LLC | Producing | 14,425 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,046 | 11,322 | Perforated |
| 11,110 | 11,308 | Perforated |
| 11,364 | 11,440 | Perforated |
| 11,477 | 11,589 | Perforated |
| 11,477 | 11,599 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,695 | 17.5 | 1,800 S |
| 9.625 | 9,498 | 12.25 | 1,620 S |
| 2.875 | 11,339 | — | — |
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 | May 1, 2002 | Mar 1, 2002 | — |
| 00 | Mar 8, 2000 | Jan 31, 2000 | — |
| 00 | Jan 12, 1984 | Jun 10, 1983 | — |
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 42-389-31346 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-31346 → 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/38931346, documented in the API reference.