WELL · 42-501-36979 · DISTRICT 8
Caldwell 578 603 #1H
Yoakum County · Platang (San Andres) field · Producing · Horizontal
Caldwell 578 603 #1H (API 42-501-36979) is a horizontal well in Yoakum County operated by Burk Royalty CO. Ltd., completed July 3, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 2, 2018, permitted to 5,500 ft.
It was permitted by Walsh Petroleum, Inc. and has since transferred to Burk Royalty CO. Ltd. on the wellbore schedule.
Completion filings report 10 formation tops, including Santa Rosa, Yates, San Andres, Clear Fork.
Its lease has reported 408K barrels of oil and 570K mcf of gas since July 2018, last reporting in July 2026.
Operator of record
Permitted by Walsh Petroleum, Inc.; the EWA schedule now lists a different operator.
Wichita Falls, TX · P-5 Y, filed Nov 4, 2025 · 382 permits on file · (940) 232-5537
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Burk Royalty Co. Ltd. |
| Production reports | Burk Royalty Co., Ltd.through Apr 2026 |
| Latest permit | Walsh Petroleum, Inc.Apr 2, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,500
- total depth, ft
- 1
- permits on file
- Apr 2, 2018
- last permit issued
- Jul 3, 2018
- completed
- 408K
- cumulative oil, bbl
- 570K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 3, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
33.120406, -102.929543
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Yoakum County.
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 578 603 O-11-70841 | Platang (San Andres) | Burk Royalty Co., Ltd. | 1 | 408K | 570K | Jul 2018 – Jul 2026 |
Oil, barrels lease total
Last 12 months 29,000 · prior 12 35,380(-18%)
Gas, mcf lease total
Last 12 months 66,138 · prior 12 97,599(-32%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Walsh Petroleum, Inc.Jul 2018 → Sep 2021
- 2Burk Royalty Co., Ltd.Oct 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 838119-99 | Drill | Walsh Petroleum, Inc. | Mar 28, 2018 | Apr 2, 2018 | May 12, 2018 | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-11-70841 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Santa RosaRED BED-SANTA ROSA | 400 |
| Yates | 3,100 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 4,540 |
| Clear ForkCLEARFORK - ACTIVE CO2 FLOOD | — |
| Glorieta | — |
| Leonard | — |
| Pennsylvanian | — |
| Strawn | — |
| Wichita-AlbanyWICHITA | — |
| Wolfcamp | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,086 | 13,475 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,303 | 12.25 | 1,025 S |
| 5.5 | 13,585 | 7.875 | 2,450 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 7, 2019 | Jan 15, 2019 | Yes |
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 42-501-36979 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-501-36979 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Eider42-501-37624
0.1 KM · Burk Royalty Co., Ltd. · Section with this well →
| Santa Rosa | 400 | 3,303 |
| Yates | 3,100 | 603 |
| San Andres | 4,650 | -947 |
| Glorieta | — | |
| Clear Fork | — | |
| Strawn | — | |
| Pennsylvanian | — | |
| Leonard | — |
10 TOPS · FIRST 8
Davis 578 60342-501-36854
0.3 KM · Walsh Petroleum, Inc. · Section with this well →
| Santa Rosa | 400 | |
| Yates | 3,111 | |
| San Andres | 5,267 | |
| Pennsylvanian | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — | |
| Strawn | — |
10 TOPS · FIRST 8
West Brahaney Unit42-501-35551
0.5 KM · Walsh Petroleum, Inc. · Section with this well →
| San Andres | 5,200 | -1,501 |
Davis a 578 60342-501-37187
0.6 KM · Walsh Petroleum, Inc. · Section with this well →
| Santa Rosa | 451 | 3,251 |
| Yates | 3,160 | 542 |
| San Andres | 4,580 | -878 |
| Pennsylvanian | — | |
| Clear Fork | — | |
| Glorieta | — | |
| Leonard | — | |
| Strawn | — |
10 TOPS · FIRST 8
Hamilton 'B'42-501-35726
1.2 KM · Walsh Petroleum, Inc. · Section with this well →
| San Andres | 5,140 | -1,450 |
Thelma Nelson42-501-37135
1.3 KM · Walsh Petroleum, Inc. · Section with this well →
| Santa Rosa | 400 | 3,288 |
| Yates | 3,121 | 567 |
| San Andres | 5,223 | -1,535 |
| Wolfcamp | — | |
| Glorieta | — | |
| Clear Fork | — | |
| Leonard | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
West Brahaney Unit42-501-34834
1.4 KM · Walsh Petroleum, Inc. · Section with this well →
| San Andres | 5,207 | -1,492 |
Double Down 602-64342-501-37024
1.6 KM · Riley Permian Operating Co, LLC · Section with this well →
| Santa Rosa | 400 | 3,319 |
| Yates | 3,090 | 629 |
| San Andres | 4,560 | -841 |
| Glorieta | — | |
| Leonard | — | |
| Clear Fork | — | |
| Wolfcamp | — | |
| Strawn | — |
10 TOPS · FIRST 8
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/50136979, documented in the API reference.