WELL · 42-123-31921 · DISTRICT 2
Pedernales #1
DE Witt County · Cottonwood Creek E. (Middle Wx.) field · Producing · Vertical
Pedernales #1 (API 42-123-31921) is a well in De Witt County operated by Marwell Petroleum Ltd Partnrship, completed April 1, 2002 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued February 14, 2002, permitted to 11,500 ft.
It was permitted by CB Energy, LLC and has since transferred to Marwell Petroleum Ltd Partnrship on the wellbore schedule.
Completion filings report 3 formation tops, including Frio, Yegua, Wilcox.
No lease production has been reported under this well’s leases.
Operator of record
Marwell Petroleum Ltd Partnrship
Permitted by CB Energy, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Nov 4, 2025 · 2 permits on file · (575) 725-0324
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marwell Petroleum Ltd Partnrship |
| Production reports | Marwell Petroleum Ltd Partnrshipthrough Apr 2026 |
| Latest permit | CB Energy, LLCFeb 14, 2002 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,500
- total depth, ft
- 2
- permits on file
- Feb 14, 2002
- last permit issued
- Apr 1, 2002
- completed
- 0
- cumulative oil, bbl
- 1.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2002 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 1, 2002
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Pedernales G-2-193766 | Cottonwood Creek,e. (Middle Wx.) | Marwell Petroleum Ltd Partnrship | 1 | 0 | 1.17M | Apr 2002 – Jul 2026 |
Gas, mcf lease total
Last 12 months 14,620 · prior 12 15,350(-5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1CB Energy, LLCApr 2002 → Nov 2017
- 2Marwell Petroleum Ltd PartnrshipDec 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 517617-98 | Drill | CB Energy, LLC | Apr 29, 2002 | Feb 14, 2002 | — | 11,500 |
| 517617-99 | Drill | CB Energy, LLC | Feb 14, 2002 | Feb 14, 2002 | Feb 21, 2002 | 11,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-193766 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 167 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,440 | 10,474 | Perforated |
| 10,483 | 10,488 | Perforated |
| 10,494 | 10,498 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,667 | 12.25 | 1,260 S |
| 7 | 9,916 | 8.75 | 285 S |
| 4.5 | 10,833 | 6.125 | 175 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 | May 23, 2003 | Apr 29, 2002 | Yes |
| 00 | Apr 10, 2003 | — | — |
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 42-123-31921 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-31921 → 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.
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/12331921, documented in the API reference.