WELL · 42-143-00140 · DISTRICT 9
Mauldin C.W. Gas Unit #1
Erath County · X-Ray (Marble Falls) field · Vertical
Mauldin C.W. Gas Unit #1 (API 42-143-00140) is a well in Erath County operated by Miller Operating Company LLC, completed June 28, 1958.
The RRC has issued one drilling permit, issued February 28, 2006, permitted to 4,085 ft.
Completion filings report 3 formation tops, including Marble Falls, Barnett, Ellenburger.
No lease production has been reported under this well’s leases.
Operator of record
Lafayette, LA · P-5 Y, filed Apr 4, 2026 · 15 permits on file · (337) 278-9094
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Miller Operating Company LLC |
| Production reports | Crossbow Resources, LLCthrough Apr 2026 |
| Latest permit | Miller Operating Company LLCFeb 28, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,085
- total depth, ft
- 1
- permits on file
- Feb 28, 2006
- last permit issued
- Jun 28, 1958
- completed
- 0
- cumulative oil, bbl
- 133K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 28, 1958
- Shut in
- —
- Plugged
- —
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mauldin, C. W. Gas Unit G-13-223724 | Newark, East (Barnett Shale) | Crossbow Resources, LLC | 1 | 0 | 54.2K | May 2006 – Jul 2026 |
| Mauldin, C.W. Gas Unit G-8-18578 | X-Ray (Marble Falls) | Miller Operating Company LLC | 1 | 0 | 79K | Jan 1993 – May 2006 |
Gas, mcf lease total
Last 12 months 65 · prior 12 129(-50%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Coastal Oil & Gas CorporationJan 1993 → Nov 1993
- 2MerencoDec 1993 → Dec 1996
- 3Tandem Energy CorporationJan 1997 → Apr 1999
- 4Crimson Energy Company, LCMay 1999 → Mar 2004
- 5Huber, J. M., CorporationApr 2004 → May 2004
- 6Huber Energy Panhandle L.P.Jun 2004 → Sep 2004
- 7Huber Energy L.P.Oct 2004 → Aug 2005
- 8Miller Operating Company LLCSep 2005 → Feb 2014
- 9Torch Operating LLCMar 2014 → May 2020
- 10Crossbow Resources, LLCJan 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 614705-99 | Recompletion | Miller Operating Company LLC | Feb 22, 2006 | Feb 28, 2006 | Mar 15, 2006 | 4,085 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-18578 | — | — | — | — |
| — | — G-13-223724 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,228 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marble Falls | 3,408 | -2,180 |
| BarnettBARNETT SHALE | 3,920 | -2,692 |
| Ellenburger | 4,051 | -2,823 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,206 | 3,250 | Perforated |
| 3,920 | 3,970 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 102 | — | 150 S |
| 5.5 | 3,488 | — | 125 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 | Apr 12, 2007 | Jul 24, 2006 | — |
| 00 | Jan 10, 2007 | — | — |
| 00 | Jan 12, 1984 | — | — |
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 42-143-00140 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-143-00140 → 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/14300140, documented in the API reference.