WELL · 42-123-35452 · DISTRICT 2
Chumchal-Martinez #1H
DE Witt County · DE Witt (Eagle Ford Shale) field · Horizontal
Chumchal-Martinez #1H (API 42-123-35452) is a horizontal well in De Witt County operated by Silverbow Resources Oper LLC, completed October 21, 2024.
The RRC has issued one drilling permit, issued July 12, 2024, permitted to 14,000 ft.
Completion filings report 8 formation tops, including Wilcox, Austin Chalk, Eagle Ford, Catahoula.
No lease production has been reported under this well’s leases.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- May 22, 2026
- Permits on file
- 460
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Silverbow Resources Oper LLC |
| Production reports | Silverbow Resources Oper, LLCthrough Apr 2026 |
| Latest permit | Silverbow Resources Oper, LLCJul 12, 2024 |
- 14,000
- total depth, ft
- 1
- permits on file
- Jul 12, 2024
- last permit issued
- Oct 21, 2024
- completed
- 0
- cumulative oil, bbl
- 545K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2024 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 21, 2024
- Shut in
- —
- Plugged
- —
Surface location
29.351097, -97.274100
Permit surface location from the RRC GIS record, in DE Witt County.
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chumchal-Martinez G-2-300192 | DE Witt (Eagle Ford Shale) | Crescent Energy Operating, LLC | 1 | 0 | 545K | Oct 2024 – Jul 2026 |
| Chumchal-Martinez O-2-12891 | DE Witt (Eagle Ford Shale) | Silverbow Resources Oper, LLC | 1 | 0 | 0 | Oct 2024 – Dec 2025 |
Gas, mcf lease total
Last 12 months 240,409 · prior 12 305,000(-21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Silverbow Resources Oper, LLCOct 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 900983-99 | Drill | Silverbow Resources Oper, LLC | Jul 1, 2024 | Jul 12, 2024 | Jul 18, 2024 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-300192 | — | — | — | — |
| — | — O-2-12891 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 299 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wilcox | 6,349 | -6,050 |
| Austin Chalk | 11,583 | -11,284 |
| Eagle Ford | 12,213 | -11,914 |
| Eagle FordEAGLE FORD LOWER | 12,235 | -11,936 |
| Catahoula | — | — |
| EdwardsEDWARDS - H2S | — | — |
| Frio | — | — |
| Vicksburg | — | — |
| Yegua | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,623 | 17,528 | Perforated |
| 19,140 | 23,954 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 884 | 17.25 | 635 S |
| 9.625 | 12,528 | 12.25 | 3,420 S |
| 5.5 | 23,975 | 8.75 | 2,635 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 | Oct 30, 2025 | Oct 20, 2025 | Yes |
| 00 | Apr 11, 2025 | Nov 7, 2024 | 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 42-123-35452 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-35452 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Chumchal-Gerdes42-123-35451
0.0 KM · Silverbow Resources Oper, LLC · Section with this well →
| Wilcox | 6,330 | -6,031 |
| Austin Chalk | 11,566 | -11,267 |
| Eagle Ford | 12,203 | -11,904 |
| Yegua | — | |
| Frio | — | |
| Edwards | — | |
| Catahoula | — | |
| Vicksburg | — |
Chumchal Unit B42-123-35450
0.0 KM · Silverbow Resources Oper, LLC · Section with this well →
| Wilcox | 6,340 | -6,041 |
| Austin Chalk | 11,538 | -11,239 |
| Eagle Ford | 12,185 | -11,886 |
| Eagle Ford | 12,271 | -11,972 |
| Yegua | — | |
| Vicksburg | — | |
| Frio | — | |
| Edwards | — |
9 TOPS · FIRST 8
Hoermann-Kolm B42-123-35443
0.3 KM · Silverbow Resources Oper, LLC · Section with this well →
| Wilcox | 6,296 | -5,986 |
| Austin Chalk | 11,453 | -11,143 |
| Eagle Ford | 12,167 | -11,857 |
| Eagle Ford | 12,255 | -11,945 |
| Frio | — | |
| Yegua | — | |
| Catahoula | — | |
| Edwards | — |
9 TOPS · FIRST 8
Kolm-Chumchal42-123-35444
0.3 KM · Silverbow Resources Oper, LLC · Section with this well →
| Austin Chalk | 11,518 | -11,208 |
| Austin Chalk | 11,722 | -11,412 |
| Eagle Ford | 12,167 | -11,857 |
| Eagle Ford | 12,188 | -11,878 |
| Eagle Ford | 12,251 | -11,941 |
| Frio | — | |
| Catahoula | — | |
| Yegua | — |
10 TOPS · FIRST 8
Hoermann-Kolm A42-123-35442
0.3 KM · Silverbow Resources Oper, LLC · Section with this well →
| Wilcox | 6,292 | -5,982 |
| Austin Chalk | 11,460 | -11,150 |
| Eagle Ford | 12,091 | -11,781 |
| Eagle Ford | 12,157 | -11,847 |
| Frio | — | |
| Catahoula | — | |
| Edwards | — | |
| Vicksburg | — |
9 TOPS · FIRST 8
A. Witte A42-123-34865
1.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 400 | -125 |
| Frio | 900 | -625 |
| Vicksburg | 1,850 | -1,575 |
| Yegua | 2,400 | -2,125 |
| Wilcox | 5,625 | -5,350 |
| Pecan Gap | 11,339 | -11,064 |
| Austin Chalk | 11,506 | -11,231 |
| Eagle Ford | 12,107 | -11,832 |
9 TOPS · FIRST 8
A. Witte A42-123-34864
1.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 400 | -124 |
| Frio | 900 | -624 |
| Vicksburg | 1,850 | -1,574 |
| Yegua | 2,400 | -2,124 |
| Wilcox | 5,625 | -5,349 |
| Pecan Gap | 11,243 | -10,967 |
| Austin Chalk | 11,499 | -11,223 |
| Eagle Ford | 12,099 | -11,823 |
9 TOPS · FIRST 8
A. Witte A42-123-34863
1.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 400 | -124 |
| Frio | 900 | -624 |
| Vicksburg | 1,850 | -1,574 |
| Yegua | 2,400 | -2,124 |
| Wilcox | 5,625 | -5,349 |
| Pecan Gap | 11,215 | -10,939 |
| Austin Chalk | 11,475 | -11,199 |
| Eagle Ford | 12,094 | -11,818 |
9 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/12335452, documented in the API reference.