WELL · 42-185-30823 · DISTRICT 3
McDuffie #1H
Grimes County · Madisonville W. (Woodbine -A-) field · Producing · Horizontal
Mcduffie #1H (API 42-185-30823) is a horizontal well in Grimes County operated by Proven Natural Resources LLC, completed September 7, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued October 8, 2013, permitted to 9,100 ft.
It was permitted by Marlin Energy Resources, LLC and has since transferred to Proven Natural Resources LLC on the wellbore schedule.
Completion filings report 6 formation tops, including Cook Mountain, Wilcox, Austin Chalk, Sub-Clarksville.
Its lease has reported 55.3K barrels of oil and 227K mcf of gas since September 2014, last reporting in July 2026.
Operator of record
Permitted by Marlin Energy Resources, LLC; the EWA schedule now lists a different operator.
Canton, TX · P-5 Y, filed Nov 4, 2025 · (936) 661-3330
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Proven Natural Resources LLC |
| Production reports | Proven Natural Resources LLCthrough Apr 2026 |
| Latest permit | Marlin Energy Resources, LLCOct 8, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,100
- total depth, ft
- 2
- permits on file
- Oct 8, 2013
- last permit issued
- Sep 7, 2014
- completed
- 55.3K
- cumulative oil, bbl
- 227K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 7, 2014
- 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 |
|---|---|---|---|---|---|---|
| McDuffie O-3-26792 | Madisonville, W. (Woodbine -A-) | Proven Natural Resources LLC | 1 | 55.3K | 227K | Sep 2014 – Jul 2026 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Oil, barrels lease total
Last 12 months 97 · prior 12 25(+288%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marlin Energy Resources, LLCSep 2014 → May 2018
- 2Etx Energy, LLCJun 2018 → Jul 2022
- 3Trailblazer Energy Resources,llcAug 2022 → Jul 2024
- 4Proven Natural Resources LLCSep 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 770849-98 | Drill | Marlin Energy Resources, LLC | Apr 2, 2014 | Oct 8, 2013 | Jun 10, 2014 | 9,093 |
| 770849-99 | Drill | Marlin Energy Resources, LLC | Sep 30, 2013 | Oct 8, 2013 | — | 9,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-26792 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 247 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cook MountainCOOK MOUNTAIN - DISPOSAL | 100 | 147 |
| WilcoxWILCOX - DISPOSAL | 1,800 | -1,553 |
| Austin ChalkAUSTIN CHALK - PRODUCTION | 8,371 | -8,124 |
| Sub-ClarksvilleSUB-CLARKSVILLE - PRODUCTION | 8,770 | -8,523 |
| WoodbineWOODBINE - PRODUCTION | 8,810 | -8,563 |
| WoodbineWOODBINE-LOLA - PRODUCTION | 8,940 | -8,693 |
| JacksonJACKSON - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,384 | 9,588 | Perforated |
| 9,646 | 9,841 | Perforated |
| 9,898 | 10,082 | Perforated |
| 10,154 | 10,361 | Perforated |
| 10,423 | 10,594 | Perforated |
| 10,657 | 10,864 | Perforated |
| 10,916 | 11,138 | Perforated |
| 11,212 | 11,400 | Perforated |
| 11,458 | 11,658 | Perforated |
| 11,725 | 11,923 | Perforated |
| 11,981 | 12,182 | Perforated |
| 12,235 | 12,436 | Perforated |
| 12,511 | 12,702 | Perforated |
| 12,766 | 12,958 | Perforated |
| 13,029 | 13,213 | Perforated |
| 13,277 | 13,474 | Perforated |
| 13,541 | 13,747 | Perforated |
| 13,801 | 13,985 | Perforated |
| 14,040 | 14,249 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,500 | 13.5 | 1,190 S |
| 7.625 | 9,126 | 9.875 | 770 S |
| 4.5 | 14,600 | 6.75 | 605 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 | Aug 25, 2015 | Oct 22, 2014 | 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 42-185-30823 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-185-30823 → 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/18530823, documented in the API reference.