WELL · 42-451-31142 · DISTRICT 7
KWB Unit #4
Tom Green County · K. W. B. (Strawn) field · Vertical
Kwb Unit #4 (API 42-451-31142) is a plugged well in Tom Green County, plugged June 20, 2014, last operated by Sonoran Energy Inc..
The RRC has issued one drilling permit, issued January 20, 1983, permitted to 7,100 ft.
It was permitted by Morrow Resources, Inc. and has since transferred to Sonoran Energy Inc. on the wellbore schedule.
Completion filings report 7 formation tops, including Base Wlfcmp Lm., Wolfcamp, Cisco, Canyon.
Its 2 leases have reported 112K barrels of oil and 559K mcf of gas since January 1993, last reporting in July 2026. The leases carry 88 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Morrow Resources, Inc.; the EWA schedule now lists a different operator.
Addison, TX · P-5 Y, filed Dec 4, 2025 · 14 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sonoran Energy Inc. |
| Production reports | Sonoran Energy Inc.through Jun 2009 |
| Latest permit | Morrow Resources, Inc.Jan 20, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,100
- total depth, ft
- 1
- permits on file
- Jan 20, 1983
- last permit issued
- Apr 23, 1992
- completed
- 112K
- cumulative oil, bbl
- 559K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 23, 1992
- Shut in
- —
- Plugged
- Jun 20, 2014
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 88 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| KWB Unit O-9-13227 | K. W. B. (Strawn) | Sonoran Energy Inc. | 88 | 112K | 559K | Jan 1993 – Jul 2026 |
| — O-9-9631 | — | — | 0 | 0 | 0 | — |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pyramid Energy, Inc.Jan 1993 → Jun 1994
- 2Rio Grande Drilling CompanyJul 1994 → Dec 1997
- 3Smith Pipe of AbileneJan 1998 → Aug 1998
- 4L.C.S. Production CompanySep 1998 → Jan 1999
- 5Mideast Gas Systems, Inc.Feb 1999 → Aug 2001
- 6Baron Energy Ltd.Sep 2001 → Jul 2005
- 7Sonoran Energy Inc.Apr 2007 → May 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 183764-99 | Drill | Morrow Resources, Inc. | Jan 20, 1983 | Jan 20, 1983 | Jan 26, 1983 | 7,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-9631 | — | — | — | — |
| — | — O-9-13227 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,052 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Wlfcmp Lm. | 3,702 | -1,650 |
| WolfcampBASE WOLFCAMP LIME | 3,702 | -1,650 |
| CiscoCISCO LIME | 5,208 | -3,156 |
| CiscoCISCO LM. | 5,208 | -3,156 |
| CanyonCANYON LIME | 5,846 | -3,794 |
| CanyonCANYON LM. | 5,846 | -3,794 |
| StrawnUPPER STRAWN SAND | 6,164 | -4,112 |
| Upr. Strawn Sd. | 6,164 | -4,112 |
| StrawnLOWER STRAWN SAND | 6,378 | -4,326 |
| Lwr. Strawn Sd. | 6,378 | -4,326 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,207 | 6,209 | Perforated |
| 6,279 | 6,301 | Perforated |
| 6,283 | 6,352 | Perforated |
| 6,332 | 6,345 | Perforated |
| 6,349 | 6,360 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 421 | 12.25 | 275 S |
| 2.375 | 6,145 | — | — |
| 5.5 | 6,401 | 7.875 | 400 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 | Jul 19, 2000 | Apr 25, 2000 | — |
| 00 | Jan 9, 1998 | Sep 29, 1997 | — |
| 00 | Aug 25, 1992 | Jul 17, 1992 | — |
| 00 | Mar 9, 1992 | Jun 21, 1983 | — |
| 00 | Jan 12, 1984 | Jun 21, 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 42-451-31142 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-451-31142 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 226K
- bbl, all reported
- Jan 2001
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000076581 | H-1 Injection | Plugged Jul 7, 2014 | 500 | 2,000 | 6,272–6,410 |
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/45131142, documented in the API reference.