WELL · 42-203-35305 · DISTRICT 6
Underwood #11H
Harrison County · Carthage (Haynesville Shale) field · Producing · Horizontal
Underwood #11H (API 42-203-35305) is a horizontal well in Harrison County operated by Diversified Production LLC, completed July 13, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued March 26, 2018, permitted to 11,000 ft.
It was permitted by Tanos Exploration II, LLC and has since transferred to Diversified Production LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Nacatoch, Blossom, Goodland, Paluxy.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Tanos Exploration II, LLC; the EWA schedule now lists a different operator.
Keithville, LA · P-5 Y, filed Feb 4, 2026 · 11 permits on file · (844) 507-5540
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diversified Production LLC |
| Production reports | Diversified Production LLCthrough Apr 2026 |
| Latest permit | Tanos Exploration II, LLCMar 26, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 2
- permits on file
- Mar 26, 2018
- last permit issued
- Jul 13, 2018
- completed
- 0
- cumulative oil, bbl
- 8.84M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 13, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
32.462796, -94.282909
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Harrison 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 |
|---|---|---|---|---|---|---|
| Underwood G-6-285072 | Carthage (Haynesville Shale) | Diversified Production LLC | 1 | 0 | 8.84M | Jul 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 435,243 · prior 12 615,133(-29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tanos Exploration II, LLCJul 2018 → Jul 2021
- 2Diversified Production LLCAug 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 837791-98 | Drill | Tanos Exploration II, LLC | Sep 17, 2018 | Mar 26, 2018 | Apr 19, 2018 | 11,000 |
| 837791-99 | Drill | Tanos Exploration II, LLC | Mar 20, 2018 | Mar 26, 2018 | Apr 19, 2018 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-6-285072 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 346 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| NacatochNACATOCH - OVER PRESSURED, WATER | 1,700 | -1,354 |
| Blossom | 2,376 | -2,030 |
| Goodland | 3,162 | -2,816 |
| Paluxy | 3,363 | -3,017 |
| Glen Rose | 4,484 | -4,138 |
| Rodessa | 5,530 | -5,184 |
| PettitPETTET | 6,179 | -5,833 |
| Travis Peak | 6,484 | -6,138 |
| Cotton Valley | 8,065 | -7,719 |
| Woodbine | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,393 | 18,326 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 965 | 14.75 | 845 S |
| 7.625 | 10,228 | 9.875 | 925 S |
| 5.5 | 18,394 | 6.75 | 905 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 16, 2025 | Apr 24, 2025 | — |
| 00 | Nov 27, 2018 | Aug 3, 2018 | 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 42-203-35305 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-203-35305 → 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.
Blocker Gill CC A42-203-35730
0.9 KM · Comstock Oil & Gas, LLC · Section with this well →
| Nacatoch | 1,211 | -878 |
| Blossom | 2,349 | -2,016 |
| Goodland | 2,884 | -2,551 |
| Paluxy | 3,326 | -2,993 |
| Glen Rose | 3,652 | -3,319 |
| Rodessa | 5,500 | -5,167 |
| Pettit | 6,154 | -5,821 |
| Travis Peak | 6,469 | -6,136 |
10 TOPS · FIRST 8
Blocker Gill CC B42-203-35731
0.9 KM · Comstock Oil & Gas, LLC · Section with this well →
| Nacatoch | 1,213 | -880 |
| Blossom | 2,317 | -1,984 |
| Goodland | 2,878 | -2,545 |
| Paluxy | 3,329 | -2,996 |
| Glen Rose | 3,647 | -3,314 |
| Rodessa | 5,490 | -5,157 |
| Pettit | 6,143 | -5,810 |
| Travis Peak | 6,461 | -6,128 |
10 TOPS · FIRST 8
Blocker Gill CC C42-203-35732
0.9 KM · Comstock Oil & Gas, LLC · Section with this well →
| Nacatoch | 1,241 | -908 |
| Blossom | 2,302 | -1,969 |
| Goodland | 2,878 | -2,545 |
| Paluxy | 3,323 | -2,990 |
| Glen Rose | 3,645 | -3,312 |
| Rodessa | 5,488 | -5,155 |
| Pettit | 6,135 | -5,802 |
| Travis Peak | 6,448 | -6,115 |
10 TOPS · FIRST 8
Blocker Sus B42-203-35682
1.4 KM · Comstock Oil & Gas, LLC · Section with this well →
| Nacatoch | 1,411 | -1,092 |
| Blossom | 2,338 | -2,019 |
| Goodland | 3,083 | -2,764 |
| Paluxy | 3,288 | -2,969 |
| Glen Rose | 3,613 | -3,294 |
| Rodessa | 5,358 | -5,039 |
| Pettit | 6,108 | -5,789 |
| Travis Peak | 6,443 | -6,124 |
10 TOPS · FIRST 8
Sanders SB42-203-35681
1.4 KM · Comstock Oil & Gas, LLC · Section with this well →
| Nacatoch | 1,411 | -1,092 |
| Blossom | 2,338 | -2,019 |
| Goodland | 3,083 | -2,764 |
| Paluxy | 3,288 | -2,969 |
| Glen Rose | 3,613 | -3,294 |
| Rodessa | 5,358 | -5,039 |
| Pettit | 6,108 | -5,789 |
| Travis Peak | 6,443 | -6,124 |
10 TOPS · FIRST 8
Floyd-Hope42-203-35536
1.5 KM · Sabine Oil & Gas Corporation · Section with this well →
| Nacatoch | 1,374 | -1,059 |
| Blossom | 2,309 | -1,994 |
| Goodland | 3,132 | -2,817 |
| Paluxy | 3,347 | -3,032 |
| Glen Rose | 3,658 | -3,343 |
| Rodessa | 5,381 | -5,066 |
| Pettit | 6,144 | -5,829 |
| Travis Peak | 6,473 | -6,158 |
10 TOPS · FIRST 8
Key, Albert42-203-34689
1.6 KM · Buffco Production Inc. · Section with this well →
| Paluxy | 3,354 | -3,040 |
| Glen Rose | 3,677 | -3,363 |
| Massive | 5,050 | -4,736 |
| Rodessa | 5,750 | -5,436 |
| Pettit | 6,110 | -5,796 |
| Pettit | 6,110 | -5,796 |
| Travis Peak | 6,470 | -6,156 |
| Cotton Valley | 8,600 | -8,286 |
12 TOPS · FIRST 8
Floyd-Hope (AW)42-203-35505
1.6 KM · Sabine Oil & Gas Corporation · Section with this well →
| Blossom | 2,348 | -2,032 |
| Goodland | 3,155 | -2,839 |
| Paluxy | 3,390 | -3,074 |
| Glen Rose | 3,676 | -3,360 |
| Rodessa | 5,423 | -5,107 |
| Pettit | 6,155 | -5,839 |
| Travis Peak | 6,485 | -6,169 |
| Cotton Valley | 8,600 | -8,284 |
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/20335305, documented in the API reference.