TEXAS · WELLS · HARRISON COUNTY · UNDERWOOD LEASE · API 42-203-33410 · DISTRICT 06
Underwood #4
Harrison County · Carthage North (Cotton Valley) field · Producing · Vertical
Underwood #4 (API 42-203-33410) is a well in Harrison County operated by Enpower Resources Inc., completed July 22, 2006 and listed as producing on the RRC schedule, shut in July 1, 2026.
The RRC has issued one drilling permit (amended once), issued February 23, 2006, permitted to 11,407 ft.
It was permitted by Gmx Resources Inc. and has since transferred to Enpower Resources Inc. on the wellbore schedule.
Completion filings report 7 formation tops, including Rodessa, James Lime, Pettit, Page.
Its lease has reported 2.48K barrels of oil and 414K mcf of gas since June 2006, last reporting volume in April 2026.
Operator of record
Permitted by GMX Resources Inc.; the EWA schedule now lists a different operator.
- Based in
- Sugar Land, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 17, 2025
- Phone
- (832) 933-1678
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Enpower Resources Inc. |
| Production reports | Enpower Resources Inc.through Apr 2026 |
| Latest permit | GMX Resources Inc.Feb 23, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,407
- total depth, ft
- 2
- permits on file
- Feb 23, 2006
- last permit issued
- Jul 22, 2006
- completed
- 2.48K
- cumulative oil, bbl
- 414K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2006 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 22, 2006
- Shut in
- Jul 1, 2026
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| Underwood G-6-222366 | Carthage, North (Cotton Valley) | Enpower Resources Inc. | 1 | 2.48K | 414K | Jun 2006 – Apr 2026 |
Gas, mcf lease total
Last 12 months 12,870 · prior 12 14,750(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1GMX Resources Inc.Jun 2006 → Aug 2012
- 2East Texas Exploration, LLCSep 2012 → Sep 2019
- 3Enpower Resources Inc.Oct 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 614192-98 | Drill | GMX Resources Inc. | Mar 15, 2006 | Feb 23, 2006 | — | 12,500 |
| 614192-99 | Drill | GMX Resources Inc. | Feb 14, 2006 | Feb 23, 2006 | — | 10,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 22, 2006 | Underwood G-6-222366 | Carthage North (Cotton Valley) | Enpower Resources Inc. | Producing · shut in Jul 1, 2026 | 11,407 |
Formation tops
As filed on W-2/G-1. Subsea from 329 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Rodessa | 5,452 | -5,123 |
| James LimeJAMES LS | 5,869 | -5,540 |
| Pettit | 6,115 | -5,786 |
| Page | 6,377 | -6,048 |
| Roquemore | 6,633 | -6,304 |
| Cotton Valley | 8,200 | -7,871 |
| Taylor | 9,700 | -9,371 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,639 | 8,796 | Perforated |
| 9,742 | 11,306 | Perforated |
| 9,747 | 9,866 | Perforated |
| 10,710 | 11,306 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,486 | 12.25 | 855 S |
| 5.5 | 11,400 | 7.875 | 1,695 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | May 8, 2008 | Apr 2, 2008 | — |
| 00 | Mar 22, 2007 | Sep 25, 2006 | Yes |
| 00 | Nov 30, 2006 | — | — |
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 42-203-33410 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-203-33410 → 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/20333410, documented in the API reference.